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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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Rechargeable AA batteries - choice of chemistry? HR6.
Had to resort to Wikipedia to find out how to determine the battery
chemistry of rechargeable batteries! https://en.wikipedia.org/wiki/AA_battery#Rechargeable_cells You would think that the packaging would indicate this, but you have to know the nR6 code. Anyway, I now know that HR6 are NiMH not NiCD. Why is it so hard? Dave R -- AMD FX-6300 in GA-990X-Gaming SLI-CF running Windows 7 Pro x64 -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
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#2
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Rechargeable AA batteries - choice of chemistry? HR6.
David wrote:
I now know that HR6 are NiMH not NiCD. NiCd batteries shouldn't be on sale to "consumers" |
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#3
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Rechargeable AA batteries - choice of chemistry? HR6.
On 07/07/2020 11:55, David wrote:
Had to resort to Wikipedia to find out how to determine the battery chemistry of rechargeable batteries! https://en.wikipedia.org/wiki/AA_battery#Rechargeable_cells You would think that the packaging would indicate this, but you have to know the nR6 code. Anyway, I now know that HR6 are NiMH not NiCD. Why is it so hard? Dave R I was recently looking for 10 aa nicads but couldn't find any........ -- This email has been checked for viruses by AVG. https://www.avg.com |
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#4
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Rechargeable AA batteries - choice of chemistry? HR6.
On Tuesday, 7 July 2020 12:37:31 UTC+1, Jim GM4DHJ ... wrote:
On 07/07/2020 11:55, David wrote: Had to resort to Wikipedia to find out how to determine the battery chemistry of rechargeable batteries! https://en.wikipedia.org/wiki/AA_battery#Rechargeable_cells You would think that the packaging would indicate this, but you have to know the nR6 code. Anyway, I now know that HR6 are NiMH not NiCD. Why is it so hard? Dave R I was recently looking for 10 aa nicads but couldn't find any........ I can't think of any reason to buy NiCd now. NT |
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#5
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Rechargeable AA batteries - choice of chemistry? HR6.
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#6
Posted to uk.d-i-y
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Rechargeable AA batteries - choice of chemistry? HR6.
On 07/07/2020 14:40, Jethro_uk wrote:
I gave up with rechargeable standard batteries ages ago. I have spent far more on them than I ever would on disposables. and they are always flat when you need them....alkalines are best.... |
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#7
Posted to uk.d-i-y
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Rechargeable AA batteries - choice of chemistry? HR6.
On Tue, 7 Jul 2020 16:23:48 -0000 (UTC), Jethro_uk wrote:
On Tue, 07 Jul 2020 16:33:57 +0100, Jim GM4DHJ ... wrote: On 07/07/2020 14:40, Jethro_uk wrote: I gave up with rechargeable standard batteries ages ago. I have spent far more on them than I ever would on disposables. and they are always flat when you need them....alkalines are best.... It might be a charger thing. Going back mumble years the chargers weren't "intelligent" and so you had to remove the cells once charged. Cue "intelligent" chargers which (supposedly) cut off when a cell is charged. But then (as you say) you go to your drawer for a recharged cell ... and it's flat. Finally you plug the cells into the charger and it insists one is faulty (despite only being used 10 maybe 15 times). meanwhile, buying the odd pack of own brand disposables ... less hassle, less cost. Panasonic/Eneloop and Fujitsu are good. Hold a charge for 12 months+. My electric toothbrush will go a month on disposable AA cells but gets increasingly feeble, so needs 2 lots a month. The rechargeable do a month easily. I keep an old 'dumb' charger for when the too-clever-for-its-own-good one balks - 5 min. dumb and clever will then work. -- Peter. The gods will stay away whilst religions hold sway |
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#8
Posted to uk.d-i-y
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Rechargeable AA batteries - choice of chemistry? HR6.
On 07/07/2020 17:23, Jethro_uk wrote:
On Tue, 07 Jul 2020 16:33:57 +0100, Jim GM4DHJ ... wrote: On 07/07/2020 14:40, Jethro_uk wrote: I gave up with rechargeable standard batteries ages ago. I have spent far more on them than I ever would on disposables. and they are always flat when you need them....alkalines are best.... It might be a charger thing. Going back mumble years the chargers weren't "intelligent" and so you had to remove the cells once charged. Cue "intelligent" chargers which (supposedly) cut off when a cell is charged. But then (as you say) you go to your drawer for a recharged cell ... and it's flat. Finally you plug the cells into the charger and it insists one is faulty (despite only being used 10 maybe 15 times). meanwhile, buying the odd pack of own brand disposables ... less hassle, less cost. Buy modern AA NiMH rechargeable batteries with a long charged shelf life. Some of the best I have ever had are IKEA's own brand LADDA 2450mAh NiMH AA cells and their cheap as chips VINNINGE USB dual charger. The charger plugs into standard USB port and is only 220mA charge current per AA cell. It's not quick but is intelligent and it doesn't boil the bejesus out of the cells. I have a quick intelligent charger that has buggered quite a few cells. The IKEA cells do have a capacity around the claimed level and I have some charged last January that are still ready to go. |
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#9
Posted to uk.d-i-y
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Rechargeable AA batteries - choice of chemistry? HR6.
On 07/07/2020 17:23, Jethro_uk wrote:
On Tue, 07 Jul 2020 16:33:57 +0100, Jim GM4DHJ ... wrote: On 07/07/2020 14:40, Jethro_uk wrote: I gave up with rechargeable standard batteries ages ago. I have spent far more on them than I ever would on disposables. and they are always flat when you need them....alkalines are best.... It might be a charger thing. Going back mumble years the chargers weren't "intelligent" and so you had to remove the cells once charged. Cue "intelligent" chargers which (supposedly) cut off when a cell is charged. But then (as you say) you go to your drawer for a recharged cell ... and it's flat. Finally you plug the cells into the charger and it insists one is faulty (despite only being used 10 maybe 15 times). meanwhile, buying the odd pack of own brand disposables ... less hassle, less cost. indeed..only good place for a rechargable is a mobile phone.... -- This email has been checked for viruses by AVG. https://www.avg.com |
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#10
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Rechargeable AA batteries - choice of chemistry? HR6.
On 07/07/2020 17:46, mm0fmf wrote:
VINNINGE USB dual charger. some bloody price ... -- This email has been checked for viruses by AVG. https://www.avg.com |
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#11
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Rechargeable AA batteries - choice of chemistry? HR6.
On 07/07/2020 17:57, Jim GM4DHJ ... wrote:
On 07/07/2020 17:23, Jethro_uk wrote: On Tue, 07 Jul 2020 16:33:57 +0100, Jim GM4DHJ ... wrote: On 07/07/2020 14:40, Jethro_uk wrote: I gave up with rechargeable standard batteries ages ago. I have spent far more on them than I ever would on disposables. and they are always flat when you need them....alkalines are best.... It might be a charger thing. Going back mumble years the chargers weren't "intelligent" and so you had to remove the cells once charged. Cue "intelligent" chargers which (supposedly) cut off when a cell is charged. But then (as you say) you go to your drawer for a recharged cell ... and it's flat. Finally you plug the cells into the charger and it insists one is faulty (despite only being used 10 maybe 15 times). meanwhile, buying the odd pack of own brand disposables ... less hassle, less cost. indeed..only good place for a rechargable is a mobile phone.... and an electric toothbrush -- This email has been checked for viruses by AVG. https://www.avg.com |
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#12
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Rechargeable AA batteries - choice of chemistry? HR6.
On 07/07/2020 17:59, Jim GM4DHJ ... wrote:
On 07/07/2020 17:46, mm0fmf wrote: VINNINGE USB dual charger. some bloody price ... made in bloody china .... -- This email has been checked for viruses by AVG. https://www.avg.com |
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#13
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Rechargeable AA batteries - choice of chemistry? HR6.
On Tuesday, 7 July 2020 16:32:47 UTC+1, Jim GM4DHJ ... wrote:
On 07/07/2020 15:29, tabbypurr wrote: On Tuesday, 7 July 2020 12:37:31 UTC+1, Jim GM4DHJ ... wrote: On 07/07/2020 11:55, David wrote: Had to resort to Wikipedia to find out how to determine the battery chemistry of rechargeable batteries! https://en.wikipedia.org/wiki/AA_battery#Rechargeable_cells You would think that the packaging would indicate this, but you have to know the nR6 code. Anyway, I now know that HR6 are NiMH not NiCD. Why is it so hard? Dave R I was recently looking for 10 aa nicads but couldn't find any........ I can't think of any reason to buy NiCd now. NT can I just use my nicad charger then ? ... if it's a 14hr slow charger yes NT |
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#14
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Rechargeable AA batteries - choice of chemistry? HR6.
On Tuesday, 7 July 2020 23:17:21 UTC+1, tabby wrote:
On Tuesday, 7 July 2020 16:32:47 UTC+1, Jim GM4DHJ ... wrote: On 07/07/2020 15:29, tabbypurr wrote: On Tuesday, 7 July 2020 12:37:31 UTC+1, Jim GM4DHJ ... wrote: On 07/07/2020 11:55, David wrote: Had to resort to Wikipedia to find out how to determine the battery chemistry of rechargeable batteries! https://en.wikipedia.org/wiki/AA_battery#Rechargeable_cells You would think that the packaging would indicate this, but you have to know the nR6 code. Anyway, I now know that HR6 are NiMH not NiCD. Why is it so hard? Dave R I was recently looking for 10 aa nicads but couldn't find any........ I can't think of any reason to buy NiCd now. NT can I just use my nicad charger then ? ... if it's a 14hr slow charger yes NT NiMHs aren't as robust re overcharging, but I have stuck NiMH in NiCd circuits and not experienced significant problems. NT |
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#15
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Rechargeable AA batteries - choice of chemistry? HR6.
On Tue, 7 Jul 2020 17:46:14 +0100, mm0fmf wrote:
On 07/07/2020 17:23, Jethro_uk wrote: On Tue, 07 Jul 2020 16:33:57 +0100, Jim GM4DHJ ... wrote: On 07/07/2020 14:40, Jethro_uk wrote: I gave up with rechargeable standard batteries ages ago. I have spent far more on them than I ever would on disposables. and they are always flat when you need them....alkalines are best.... It might be a charger thing. Going back mumble years the chargers weren't "intelligent" and so you had to remove the cells once charged. Cue "intelligent" chargers which (supposedly) cut off when a cell is charged. But then (as you say) you go to your drawer for a recharged cell ... and it's flat. Finally you plug the cells into the charger and it insists one is faulty (despite only being used 10 maybe 15 times). meanwhile, buying the odd pack of own brand disposables ... less hassle, less cost. Buy modern AA NiMH rechargeable batteries with a long charged shelf life. Some of the best I have ever had are IKEA's own brand LADDA 2450mAh NiMH AA cells and their cheap as chips VINNINGE USB dual charger. The charger plugs into standard USB port and is only 220mA charge current per AA cell. It's not quick but is intelligent and it doesn't boil the bejesus out of the cells. I have a quick intelligent charger that has buggered quite a few cells. The IKEA cells do have a capacity around the claimed level and I have some charged last January that are still ready to go. I found that a lot of NiMH cells are a smidgeon bigger than Eneloop etc. In some applications they are just a bit too big to go in easily; in some cheap torches that take 3 AAA cells the cluster is a tight fit in and a near hammer job to get out. -- Peter. The gods will stay away whilst religions hold sway |
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#16
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Rechargeable AA batteries - choice of chemistry? HR6.
Hard to find ni cads at all these days.
Brian -- ----- -- This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please Note this Signature is meaningless.! "David" wrote in message ... Had to resort to Wikipedia to find out how to determine the battery chemistry of rechargeable batteries! https://en.wikipedia.org/wiki/AA_battery#Rechargeable_cells You would think that the packaging would indicate this, but you have to know the nR6 code. Anyway, I now know that HR6 are NiMH not NiCD. Why is it so hard? Dave R -- AMD FX-6300 in GA-990X-Gaming SLI-CF running Windows 7 Pro x64 -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
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#17
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Rechargeable AA batteries - choice of chemistry? HR6.
Why not? I have actually seen them as battery packs though, but not singly.
Brian -- ----- -- This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please Note this Signature is meaningless.! "Andy Burns" wrote in message ... David wrote: I now know that HR6 are NiMH not NiCD. NiCd batteries shouldn't be on sale to "consumers" |
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#18
Posted to uk.d-i-y
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Rechargeable AA batteries - choice of chemistry? HR6.
Alkaline if used a bit then charged a bit can be made to last an awfully
long time. Brian -- ----- -- This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please Note this Signature is meaningless.! "Jethro_uk" wrote in message ... I gave up with rechargeable standard batteries ages ago. I have spent far more on them than I ever would on disposables. |
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#20
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Rechargeable AA batteries - choice of chemistry? HR6.
Brian Gaff wrote:
Andy Burns wrote: NiCd batteries shouldn't be on sale to "consumers" Why not? EU Directive 2006/66 |
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#21
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Rechargeable AA batteries - choice of chemistry? HR6.
In article ,
Andy Burns wrote: Brian Gaff wrote: Andy Burns wrote: NiCd batteries shouldn't be on sale to "consumers" Why not? EU Directive 2006/66 I mamged to buy some from CPC at the end of last year to replace ones in our village hall (19 year old) emergency lights. If I hadn't been able to, I'd have had to replace 3 fittings and 4 matching non-emergency ones. -- from KT24 in Surrey, England "I'd rather die of exhaustion than die of boredom" Thomas Carlyle |
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#22
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Rechargeable AA batteries - choice of chemistry? HR6.
charles wrote:
Andy Burns wrote: Brian Gaff wrote: Andy Burns wrote: NiCd batteries shouldn't be on sale to "consumers" Why not? EU Directive 2006/66 I mamged to buy some from CPC at the end of last year to replace ones in our village hall (19 year old) emergency lights. Of course RS and similar sell them, but that isn't considered "consumer" If I hadn't been able to, I'd have had to replace 3 fittings and 4 matching non-emergency ones. Entire LED emergency lights are only a couple of quid more than the replacement NiCd battery packs ... |
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#23
Posted to uk.d-i-y
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Rechargeable AA batteries - choice of chemistry? HR6.
In article ,
Andy Burns wrote: charles wrote: Andy Burns wrote: Brian Gaff wrote: Andy Burns wrote: NiCd batteries shouldn't be on sale to "consumers" Why not? EU Directive 2006/66 I mamged to buy some from CPC at the end of last year to replace ones in our village hall (19 year old) emergency lights. Of course RS and similar sell them, but that isn't considered "consumer" If I hadn't been able to, I'd have had to replace 3 fittings and 4 matching non-emergency ones. Entire LED emergency lights are only a couple of quid more than the replacement NiCd battery packs ... These weren't just emergency lights - which I agree can be very cheap. These were nice looking fittings, some of which also contained an emergency facility. -- from KT24 in Surrey, England "I'd rather die of exhaustion than die of boredom" Thomas Carlyle |
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#24
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Rechargeable AA batteries - choice of chemistry? HR6.
On Wednesday, 8 July 2020 09:12:48 UTC+1, Brian Gaff (Sofa) wrote:
Alkaline if used a bit then charged a bit can be made to last an awfully long time. Brian That's not been my experience. Charging with the usual hour on hour off routine has resulted in some that are good, but many that are majorly substandard. NT |
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