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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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AA Battery chargers
Our Duracell NiMH AA/AAA recharger has died. I have recently added some
1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. Are there any brands/models known to be good or bad? I'll look at Maplin, CPC, etc, but personal recommendations are always welcome. -- Davey. |
#2
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AA Battery chargers
In article , Davey wrote:
Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. Are there any brands/models known to be good or bad? I'll look at Maplin, CPC, etc, but personal recommendations are always welcome. I've got an Ansmann Energy 8 Plus - and it's brilliant. Not cheap though - you didn't give an indication of price so don't know if this is in range http://www.amazon.co.uk/dp/B001FR6SNK Darren |
#3
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AA Battery chargers
On 04/04/2014 11:30, Davey wrote:
Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. Are there any brands/models known to be good or bad? I'll look at Maplin, CPC, etc, but personal recommendations are always welcome. Well worth paying the extra for proper "smart" chargers rather than the bargain basement: smart chargers make sure a mixed set all get "filled", and don't destroy cells by overcharging. |
#5
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AA Battery chargers
On Fri, 04 Apr 2014 12:16:31 +0100
newshound wrote: On 04/04/2014 11:30, Davey wrote: Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. Are there any brands/models known to be good or bad? I'll look at Maplin, CPC, etc, but personal recommendations are always welcome. Well worth paying the extra for proper "smart" chargers rather than the bargain basement: smart chargers make sure a mixed set all get "filled", and don't destroy cells by overcharging. I would agree, with my little knowledge. Hopefully a cheaper Ansmann will still be Smart enough. I don't need to charge 8 cells at once, for example. The Duracell was supposed to be 'microprocessor controlled', but I think I just overloaded it by using higher capacity cells, defeating any brain power it had by brute force. -- Davey. |
#6
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AA Battery chargers
On Friday, April 4, 2014 11:30:32 AM UTC+1, Davey wrote:
Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. Are there any brands/models known to be good or bad? I'll look at Maplin, CPC, etc, but personal recommendations are always welcome. -- Davey. 7day shop 808 , had one for years: http://www.7dayshop.com/7dayshop-bat...cz9j YXQ9MTYy |
#7
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AA Battery chargers
On Fri, 4 Apr 2014 12:27:52 +0100, Davey
wrote: On Fri, 04 Apr 2014 12:16:31 +0100 newshound wrote: On 04/04/2014 11:30, Davey wrote: Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. Are there any brands/models known to be good or bad? I'll look at Maplin, CPC, etc, but personal recommendations are always welcome. Well worth paying the extra for proper "smart" chargers rather than the bargain basement: smart chargers make sure a mixed set all get "filled", and don't destroy cells by overcharging. I would agree, with my little knowledge. Hopefully a cheaper Ansmann will still be Smart enough. I don't need to charge 8 cells at once, for example. The Duracell was supposed to be 'microprocessor controlled', but I think I just overloaded it by using higher capacity cells, defeating any brain power it had by brute force. When I investigated a couple of years ago I ended up with the Technoline BL700 intelligent, AA and AAA. I also gradually moved over to Eneloop batteries after chasing high power batteries only to learn that they had high internal resistance. I nearly threw away a digital camera until someone pointed me in the Eneloop direction. Camera sits in boot of car - months at a time and still fires up when needed. -- AnthonyL |
#8
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AA Battery chargers
Davey wrote:
Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. I have found this to be pretty good. Being intelligent, it will also refresh tired batteries. http://www.amazon.co.uk/Technoline-Intelligent-battery-charger-Version/dp/B003S4JQS2/ref=sr_1_3?s=electronics-accessories&ie=UTF8&qid=1396613903&sr=1-3&keywords=bl700 Chris -- Chris J Dixon Nottingham UK Plant amazing Acers. |
#9
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AA Battery chargers
On Friday, 4 April 2014 12:24:17 UTC+1, Davey wrote:
On Fri, 4 Apr 2014 10:38:31 +0000 (UTC) (D.M.Chapman) wrote: In article , Davey wrote: Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. Are there any brands/models known to be good or bad? I'll look at Maplin, CPC, etc, but personal recommendations are always welcome. I've got an Ansmann Energy 8 Plus - and it's brilliant. Not cheap though - you didn't give an indication of price so don't know if this is in range http://www.amazon.co.uk/dp/B001FR6SNK Darren I saw the Ansmann name (which I don't know) all over the CPC site, so that is a good recommendation from you. Yes, that's a high price (although they offer one used at 50p!), but Ansmann have a good range. Many thanks. Looking at the spec. for my dead Duracell charger, it says that its Output was 360 mAh, but it was supplied with (4) AA NiMH batteries, each with a charging draw of 130 mA, so it could not, in theory, even provide full charge for a full load of (4) cells, requiring 520mA. That's not really the case as most chargers charge 2 cells at a time so yo only have 2X130ma of current being drawn at a time rather than 4X130ma I'm not to sure about the fast 1 hour charges or whether they are worth using. I have a couple of chargers at work that I use. good value http://www.rapidonline.com/Electrica...harger-18-4001 and a discontinued uni-ross. So adding some 170mA cells probably did for it. -- Davey. |
#10
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AA Battery chargers
On Fri, 4 Apr 2014 05:38:04 -0700 (PDT)
whisky-dave wrote: That's not really the case as most chargers charge 2 cells at a time so yo only have 2X130ma of current being drawn at a time rather than 4X130ma This one is specifically designed to take 4 batteries at once, either (4) AAs or AAAs, or (2) of each. It worked fine until recently, at about the time I added the higher power cells to the mix. -- Davey. |
#11
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AA Battery chargers
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#12
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AA Battery chargers
On Fri, 04 Apr 2014 13:20:15 +0100
Chris J Dixon wrote: Davey wrote: Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. I have found this to be pretty good. Being intelligent, it will also refresh tired batteries. http://www.amazon.co.uk/Technoline-Intelligent-battery-charger-Version/dp/B003S4JQS2/ref=sr_1_3?s=electronics-accessories&ie=UTF8&qid=1396613903&sr=1-3&keywords=bl700 Chris Thanks. I did come across that one during my researching. Good to have a recommendation, thanks. -- Davey. |
#13
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AA Battery chargers
On Fri, 4 Apr 2014 11:30:32 +0100, Davey wrote:
I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. The Aldi charger does the business normally less than £15 when they have them but I haven't seen one in the shops for a while. Can do 2 x D, 6 x AA/AAA and two PP3. The bays for the D/AA/AAA are shared. "Computerised" so checks each cell and then charges as required. -- Cheers Dave. |
#14
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AA Battery chargers
In article o.uk,
Dave Liquorice wrote: On Fri, 4 Apr 2014 11:30:32 +0100, Davey wrote: I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. The Aldi charger does the business normally less than £15 when they have them but I haven't seen one in the shops for a while. Can do 2 x D, 6 x AA/AAA and two PP3. The bays for the D/AA/AAA are shared. "Computerised" so checks each cell and then charges as required. I have the Lidl version badged Tronic which is the same by your description. One extra feature is it is self contained - no wall wart. It's been in regular use since I bought it several years ago - excellent device. Think I saw them in Lidl recently. -- *Failure is not an option. It's bundled with your software. Dave Plowman London SW To e-mail, change noise into sound. |
#15
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AA Battery chargers
Chris J Dixon wrote:
Davey wrote: Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. I have found this to be pretty good. Being intelligent, it will also refresh tired batteries. http://www.amazon.co.uk/Technoline-Intelligent-battery-charger-Version/dp/B003S4JQS2/ref=sr_1_3?s=electronics-accessories&ie=UTF8&qid=1396613903&sr=1-3&keywords=bl700 Chris Seconded, though it can be confused by a cell that has been reverse charged by being the weakest in a set of 2 or more used in a device. They are rejected as dead. A few seconds in parallel with an ordinary alkaline cell with charge them enough for the charger to recognise them (or keep a cheap dumb charger to hand). As it will also measure cell capacity, it is useful in grouping sets of cells to equalise actual capacity. Chris K |
#16
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AA Battery chargers
On Fri, 4 Apr 2014 12:27:52 +0100, Davey wrote:
On Fri, 04 Apr 2014 12:16:31 +0100 newshound wrote: On 04/04/2014 11:30, Davey wrote: Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. Are there any brands/models known to be good or bad? I'll look at Maplin, CPC, etc, but personal recommendations are always welcome. Well worth paying the extra for proper "smart" chargers rather than the bargain basement: smart chargers make sure a mixed set all get "filled", and don't destroy cells by overcharging. I would agree, with my little knowledge. Hopefully a cheaper Ansmann will still be Smart enough. I don't need to charge 8 cells at once, for example. It seems that cells need slow charging but chargers boast of speed. Even buying LSD NiMH cells and charger together, from Aldidl, there's a mismatch between them. I always charge 4 cells together to mitigate the need for speed. The Duracell was supposed to be 'microprocessor controlled', but I think I just overloaded it by using higher capacity cells, defeating any brain power it had by brute force. High capacity won't make any difference - just take longer. If the cells are indeed high power (cordless drills etc.) then the internal resistance would be low. Surely any worthwhile charger should be able to limit its own output so as not to commit suicide. -- Peter. The gods will stay away whilst religions hold sway |
#17
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AA Battery chargers
On Fri, 04 Apr 2014 14:50:56 +0100, Dave Plowman (News) wrote:
In article o.uk, Dave Liquorice wrote: On Fri, 4 Apr 2014 11:30:32 +0100, Davey wrote: I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. The Aldi charger does the business normally less than £15 when they have them but I haven't seen one in the shops for a while. Can do 2 x D, 6 x AA/AAA and two PP3. The bays for the D/AA/AAA are shared. "Computerised" so checks each cell and then charges as required. I have the Lidl version badged Tronic which is the same by your description. One extra feature is it is self contained - no wall wart. It's been in regular use since I bought it several years ago - excellent device. Think I saw them in Lidl recently. Ah, that's the one I referred to above. It's charging rate exceeds the recommended rate for the cells. Works well though. -- Peter. The gods will stay away whilst religions hold sway |
#18
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AA Battery chargers
On Friday, 4 April 2014 14:07:39 UTC+1, Davey wrote:
On Fri, 4 Apr 2014 05:38:04 -0700 (PDT) whisky-dave wrote: That's not really the case as most chargers charge 2 cells at a time so yo only have 2X130ma of current being drawn at a time rather than 4X130ma This one is specifically designed to take 4 batteries at once, either (4) AAs or AAAs, or (2) of each. It worked fine until recently, at about the time I added the higher power cells to the mix. Mine also take 4 cells at a time in sets of 2 only. -- Davey. |
#19
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AA Battery chargers
On 04/04/2014 13:20, Chris J Dixon wrote:
Davey wrote: Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. I have found this to be pretty good. Being intelligent, it will also refresh tired batteries. http://www.amazon.co.uk/Technoline-Intelligent-battery-charger-Version/dp/B003S4JQS2/ref=sr_1_3?s=electronics-accessories&ie=UTF8&qid=1396613903&sr=1-3&keywords=bl700 Chris Will it charge NiZn batteries? Is it any better than this Accupower unit which is cheaper: http://www.amazon.co.uk/dp/B004Z5XXZ...I1Y37EC4887NN8 The Accupower is not suitable for NiZn batteries. -- Michael Chare |
#20
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AA Battery chargers
D.M.Chapman wrote:
I've got an Ansmann Energy 8 Plus - and it's brilliant. I have one too (well, mine's not the plus), recommended |
#21
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AA Battery chargers
Davey wrote:
Hopefully a cheaper Ansmann will still be Smart enough. I don't need to charge 8 cells at once, for example. As well as the Energy8, I have an older Energy4 Speed, it only does AA/AAA but will work from 240V or from a cigar lighter, it has a fan to cool the batteries as it charges them quickly. |
#22
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AA Battery chargers
On Fri, 4 Apr 2014 11:30:32 +0100
Davey wrote: Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. Are there any brands/models known to be good or bad? I'll look at Maplin, CPC, etc, but personal recommendations are always welcome. Many thanks for all the replies. I have ordered a 7dayshop 808LCD, it compared well, was well priced, and I needed to order something today. -- dAVEY. |
#23
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AA Battery chargers
On Fri, 04 Apr 2014 14:50:56 +0100, "Dave Plowman (News)"
wrote: In article o.uk, Dave Liquorice wrote: On Fri, 4 Apr 2014 11:30:32 +0100, Davey wrote: I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. The Aldi charger does the business normally less than £15 when they have them but I haven't seen one in the shops for a while. Can do 2 x D, 6 x AA/AAA and two PP3. The bays for the D/AA/AAA are shared. "Computerised" so checks each cell and then charges as required. I got the Aldi charger after recommendations here iirc. Works just fine. |
#24
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AA Battery chargers
When you say died, do you mean completely? Normally these single chip type
chargers are just four modules connected to a pretty normal supply, either switch mode or analogue. Brian -- From the Sofa of Brian Gaff Reply address is active "Davey" wrote in message ... Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. Are there any brands/models known to be good or bad? I'll look at Maplin, CPC, etc, but personal recommendations are always welcome. -- Davey. |
#25
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AA Battery chargers
On Fri, 04 Apr 2014 14:50:56 +0100, Dave Plowman (News) wrote:
The Aldi charger does the business normally less than £15 when they have them but I haven't seen one in the shops for a while. Can do 2 x D, 6 x AA/AAA and two PP3. The bays for the D/AA/AAA are shared. "Computerised" so checks each cell and then charges as required. I have the Lidl version badged Tronic which is the same by your description. Hum, mines "Tronic" as well, there are no convient Lidl stores for me but there is for Aldi. I may have got the store wrong... Wanders off to charging shelf... Kompernass KH980. One extra feature is it is self contained - no wall wart. Yes I like that as well. It's been in regular use since I bought it several years ago Mine has a Manufactured 10/2008 sticker. -- Cheers Dave. |
#26
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AA Battery chargers
On Fri, 04 Apr 2014 16:18:45 +0100, Chris K
wrote: http://www.amazon.co.uk/Technoline-I...charger-Versio n/dp/B003S4JQS2/ref=sr_1_3?s=electronics-accessories&ie=UTF8&qid=13966 13903&sr=1-3&keywords=bl700 As it will also measure cell capacity, it is useful in grouping sets of cells to equalise actual capacity. I was quite keen on that (though the price is a bit steep) but to do it it has to fully charge, the discharge and then fully charge again. Now if it could tell you the capacity after a normal recharge cycle it would have been better. I currently just measure off load terminal voltage after the cells have been off the charger for a day to group cells of nominally the same capacity into sets. Primitive but seems to work. -- Cheers Dave. |
#27
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AA Battery chargers
On Fri, 4 Apr 2014 23:01:05 +0100
"Brian Gaff" wrote: When you say died, do you mean completely? Normally these single chip type chargers are just four modules connected to a pretty normal supply, either switch mode or analogue. Brian It does not show any LEDs under any circumstance. It makes no difference what batteries I install. And the Torx screws holding it together are smaller than my smallest. Once I have a working charger, then I'll open this one somehow. -- Davey. |
#28
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AA Battery chargers
On Fri, 4 Apr 2014 16:47:57 +0100, PeterC
wrote: On Fri, 04 Apr 2014 14:50:56 +0100, Dave Plowman (News) wrote: In article o.uk, Dave Liquorice wrote: On Fri, 4 Apr 2014 11:30:32 +0100, Davey wrote: I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. The Aldi charger does the business normally less than £15 when they have them but I haven't seen one in the shops for a while. Can do 2 x D, 6 x AA/AAA and two PP3. I have the Lidl version badged Tronic which is the same by your description. One extra feature is it is self contained - no wall wart. It's been in regular use since I bought it several years ago - excellent device. Think I saw them in Lidl recently. Ah, that's the one I referred to above. It's charging rate exceeds the recommended rate for the cells. Works well though. Bought one last week in a Lidl in Devon, there were a few in the bin so it was probably a recent stock rather than an odd one that had hung around for a while. G.Harman |
#29
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AA Battery chargers
On Fri, 04 Apr 2014 22:36:52 +0000 (GMT), Dave Liquorice wrote:
On Fri, 04 Apr 2014 16:18:45 +0100, Chris K wrote: http://www.amazon.co.uk/Technoline-I...charger-Versio n/dp/B003S4JQS2/ref=sr_1_3?s=electronics-accessories&ie=UTF8&qid=13966 13903&sr=1-3&keywords=bl700 As it will also measure cell capacity, it is useful in grouping sets of cells to equalise actual capacity. I was quite keen on that (though the price is a bit steep) but to do it it has to fully charge, the discharge and then fully charge again. Now if it could tell you the capacity after a normal recharge cycle it would have been better. I currently just measure off load terminal voltage after the cells have been off the charger for a day to group cells of nominally the same capacity into sets. Primitive but seems to work. The first Eneloop cells that I had (16 of them*) were, on arrival, at the same voltage +-0.001! *ordered 8 from 7DayShop and 3 were damaged. e-mailed, with offer of a photo, and a couple of days later another 8 arrived! 2 of the damaged ones are useable but the third, although sort of OK, is too deformed to go into anything. -- Peter. The gods will stay away whilst religions hold sway |
#30
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AA Battery chargers
On 04/04/2014 11:30, Davey wrote:
Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. The capacity of the battery should not affect the charger particularly - only the length of time they take to recharge. They must be incredibly ancient batteries to only have a stated capacity of under 2Ah though in AA size. I didn't think they made AA NiMH in capcities smaller than that certainly not in the last decade. The smallest NiMH AA I have is 2Ah and the most recent ones are 2800mAh. These days it is worth buying the slightly lower capacity but long life low discharge types (again Aldi/Lidl sometimes have bargains). Are there any brands/models known to be good or bad? I'll look at Maplin, CPC, etc, but personal recommendations are always welcome. Lidl/Aldis own brand smart charger will do all sizes of battery automatic NiMH NiCd detection and in any combination. It seems pretty well behaved apart from being a little conservative about recharging really badly discharged cells that have been seriously abused. If you need an AA only on then Maplin do one that isn't too bad and cheap - professional ones cost more and will do controlled fast charge. I have the predecessor of this one for travel use: http://www.maplin.co.uk/p/maplin-nim...-charger-n42bx It is hard to buy a dumb as a rock one that will just keep adding juice until the battery explodes these days. Product liablity prevent them being sold, but I expect you could find nasty Chinese ones on eBay. -- Regards, Martin Brown |
#31
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AA Battery chargers
On 04/04/2014 16:18, Chris K wrote:
Chris J Dixon wrote: Davey wrote: Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. I have found this to be pretty good. Being intelligent, it will also refresh tired batteries. http://www.amazon.co.uk/Technoline-Intelligent-battery-charger-Version/dp/B003S4JQS2/ref=sr_1_3?s=electronics-accessories&ie=UTF8&qid=1396613903&sr=1-3&keywords=bl700 Chris Seconded, though it can be confused by a cell that has been reverse charged by being the weakest in a set of 2 or more used in a device. They are rejected as dead. A few seconds in parallel with an ordinary alkaline cell with charge them enough for the charger to recognise them (or keep a cheap dumb charger to hand). Ah, wondered what that was - get it every so often with my Lidl charger. Quick blast on dumb charger 'fixes' it, as you say. -- Cheers, Rob |
#32
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#33
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AA Battery chargers
In article ,
polygonum wrote: Trouble with mentions of the Lidl charger is that there are (at least) two such beasts. The compact one which can do AA and AAA cells only. And the larger one which can do at least C as well (and maybe others). Not sure whether there are significant differences other than physical cell holding? I have one of each. They both work well. -- *Why 'that tie suits you' but 'those shoes suit you'?* Dave Plowman London SW To e-mail, change noise into sound. |
#34
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AA Battery chargers
On 05/04/2014 10:32, Dave Plowman (News) wrote:
In article , polygonum wrote: Trouble with mentions of the Lidl charger is that there are (at least) two such beasts. The compact one which can do AA and AAA cells only. And the larger one which can do at least C as well (and maybe others). Not sure whether there are significant differences other than physical cell holding? I have one of each. They both work well. I have the larger newest one and it will do everything up to D-cells. Some their Tronic low self discharge cells are a real bargain too! It is also smart about refreshing batteries but slightly too cautious about ones which have become seriously low voltage through abuse. There are plenty of fast chargers these days which push batteries close to their thermal limits. I have never known the Lidl one get my batteries uncomfortably hot and it works plenty well enough for me. (I am a fairly demanding user of rechargeables) -- Regards, Martin Brown |
#35
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AA Battery chargers
On Sat, 05 Apr 2014 09:08:02 +0100, Martin Brown
wrote: On 04/04/2014 11:30, Davey wrote: Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. The capacity of the battery should not affect the charger particularly - only the length of time they take to recharge. They must be incredibly ancient batteries to only have a stated capacity of under 2Ah though in AA size. I didn't think they made AA NiMH in capcities smaller than that certainly not in the last decade. The smallest NiMH AA I have is 2Ah and the most recent ones are 2800mAh. These days it is worth buying the slightly lower capacity but long life low discharge types (again Aldi/Lidl sometimes have bargains). Are there any brands/models known to be good or bad? I'll look at Maplin, CPC, etc, but personal recommendations are always welcome. Lidl/Aldis own brand smart charger will do all sizes of battery automatic NiMH NiCd detection and in any combination. It seems pretty well behaved apart from being a little conservative about recharging really badly discharged cells that have been seriously abused. If you need an AA only on then Maplin do one that isn't too bad and cheap - professional ones cost more and will do controlled fast charge. I have the predecessor of this one for travel use: http://www.maplin.co.uk/p/maplin-nim...-charger-n42bx It is hard to buy a dumb as a rock one that will just keep adding juice until the battery explodes these days. Product liablity prevent them being sold, but I expect you could find nasty Chinese ones on eBay. I use a Nikon Coolpix MH-71 charger to fast charge 1 or 2 AA NiMh cells (it only takes AA cells) and it's just too brainy to charge some of my collection of LSD cells which have turned 'funny'. It was one of the accessories in the box when I bought the 3.2Mpxl Coolpix in Toronto back in 2005. It was designed to quick charge the original 1800mAH cells in about 2 hours. It takes a little longer for it to charge the 2000mAH spares I bought at the time and, of course, even longer for the 2300mAH LSD cells I bought in subsequent years. It's still going strong even after all this time but I suspect that's due largely on account of its built-in 'overheat' protection. As for trying to fool it into charging those funny cells by charging them from a 4 cell (AA and AAA) Uniross Compact Fast[1] ( 'dumb') Charger (AA 350mA/AAA 150mA) which can only charge pairs of cells at a time, it's still wise to the fact that they're 'funny cells'. Both chargers are, rather usefully, of the 100 -240v AC type which is rather handy for overseas visits and cruise ship voyages. The original Coolpix is virtually unusable now on account the well hidden RTC and settings lithium cell backup 'battery' no longer works. It would need to be reprogrammed after every single time it's switched off, not just after a battery swap out. However, the MH-71 charger does charging duty for a Canon PowerShot A720 IS [2] which also, rather conscionably, uses AA cells a pair at a time. I wasn't at all bothered by the lack of a charger in the Canon accessories kit since I knew could rely on the MH-71 to keep the AA cells charged up (extracting extended ROI on my earlier Nikon investment). [1] 'Compact' on account it's a switch mode design which plugs directly into a wall socket and 'Fast' because it can charge the 2000mAH cells in only 6 hours as opposed to the more typical 14 to 16 hour charging time of an 'ordinary' charger. [2] The A720 IS does at least have a user replaceable lithium coin cell so it won't be forced into early retirement for the sake of a 'flat battery' like the little Nikon was. -- Regards, J B Good |
#36
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AA Battery chargers
Michael Chare wrote:
On 04/04/2014 13:20, Chris J Dixon wrote: I have found this to be pretty good. Being intelligent, it will also refresh tired batteries. http://www.amazon.co.uk/Technoline-Intelligent-battery-charger-Version/dp/B003S4JQS2/ref=sr_1_3?s=electronics-accessories&ie=UTF8&qid=1396613903&sr=1-3&keywords=bl700 Will it charge NiZn batteries? Not so far as I know. Is it any better than this Accupower unit which is cheaper: http://www.amazon.co.uk/dp/B004Z5XXZ...I1Y37EC4887NN8 It can select a different action for each cell inserted, whilst the Accupower cannot. Chris -- Chris J Dixon Nottingham UK Plant amazing Acers. |
#37
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AA Battery chargers
On Sat, 05 Apr 2014 09:53:13 +0100, polygonum
wrote: Bought one last week in a Lidl in Devon, there were a few in the bin so it was probably a recent stock rather than an odd one that had hung around for a while. G.Harman Trouble with mentions of the Lidl charger is that there are (at least) two such beasts. The compact one which can do AA and AAA cells only. And the larger one which can do at least C as well (and maybe others). Not sure whether there are significant differences other than physical cell holding? Fairy Nuff. To clarify the one I got in Lidl about 12 days ago was the one whose mention upthread was quoted in my first reply where it described what cells it took. ,so it will be the smaller one. Repeated below, The Aldi charger does the business normally less than £15 when they have them but I haven't seen one in the shops for a while. Can do 2 x D, 6 x AA/AAA and two PP3. I have the Lidl version badged Tronic which is the same by your description. One extra feature is it is self contained - no wall wart. G.Harman |
#38
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AA Battery chargers
On 04/04/2014 11:30, Davey wrote:
Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. Are there any brands/models known to be good or bad? I'll look at Maplin, CPC, etc, but personal recommendations are always welcome. www.battery-force.co.uk Unrivalled in my experience. -- Peter Crosland |
#39
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AA Battery chargers
On Fri, 4 Apr 2014 16:45:47 +0100, PeterC
wrote: Even buying LSD NiMH cells and charger together, from Aldidl, there's a mismatch between them. I always charge 4 cells together to mitigate the need for speed. Beware; my Lidl Tronic multi-NiMH charger has taken to not cutting off properly on a couple of channels. Only today I found a battery which came off the thing with 2.0V in it. Not good - could have fried chips on its case. Ho-hum - that lasted well, but now unreliable and untrustworthy. |
#40
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AA Battery chargers
On Fri, 4 Apr 2014 18:43:40 +0100
Davey wrote: On Fri, 4 Apr 2014 11:30:32 +0100 Davey wrote: Our Duracell NiMH AA/AAA recharger has died. I have recently added some 1700 mAh batteries to the mix of original 1300 mAh ones, which may or may not have precipitated its death. I am looking for a replacement charger, able to sensibly recharge these, preferably in any mix. Are there any brands/models known to be good or bad? I'll look at Maplin, CPC, etc, but personal recommendations are always welcome. Many thanks for all the replies. I have ordered a 7dayshop 808LCD, it compared well, was well priced, and I needed to order something today. It arrived today, which is not bad. The 'User Manual' was printed on a photocopier, and is barely readable, but the charger seems to work. The manual mentions how to set it to 'Recharge' before 'Charge', but gives no indication as to when this might be worth doing, which is very unhelpful. I am currently (sorry) just recharging all the batteries, and I will note any that seem to have problems of any kind. I dismantled the old Duracell charger, and there is nothing obviously wrong with it. Maybe the overtemp. sensor has failed. It might just become a source of parts. -- Davey. |
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