Looking for a battery re-charger for 2700mAh Ni MH AA batteries on a
well known online auction site and can't seem to find one suitable.
What output from the charger is sufficient to recharge 4x2700mAh AA
batteries. A reply from on LCD charger supplier said the output was
1000mA per channel, so how that recharge a 2700 mAh battery ? I am
looking to charge 1-4 2700mAh AA batteries and 1-4 1800mAh AAA
batteries.

wrote:

batteries. A reply from on LCD charger supplier said the output was
1000mA per channel, so how that recharge a 2700 mAh battery ? I am

In just under 3 hours is the answer.

The charge rate dictates only how long it takes to charge the cells, not
whether it can or not.

looking to charge 1-4 2700mAh AA batteries and 1-4 1800mAh AAA
batteries.

This is the sort of thing you need:

http://cgi.ebay.co.uk/Fast-Smart-Cha...QQcmdZViewItem

(I can recommend the cells from this seller as well, they perform very well)


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

"John Rumm" wrote in message
...
wrote:

batteries. A reply from on LCD charger supplier said the output
was
1000mA per channel, so how that recharge a 2700 mAh battery ? I am

In just under 3 hours is the answer.

The charge rate dictates only how long it takes to charge the cells,
not
whether it can or not.

looking to charge 1-4 2700mAh AA batteries and 1-4 1800mAh AAA
batteries.

This is the sort of thing you need:


http://cgi.ebay.co.uk/Fast-Smart-Cha...QQcmdZViewItem

(I can recommend the cells from this seller as well, they perform
very well)


I've just used this seller too - AA & AAA cells, and charger, highly
recommended.

Martin

In article . com,
wrote:
Looking for a battery re-charger for 2700mAh Ni MH AA batteries on a
well known online auction site and can't seem to find one suitable.
What output from the charger is sufficient to recharge 4x2700mAh AA
batteries. A reply from on LCD charger supplier said the output was
1000mA per channel, so how that recharge a 2700 mAh battery ? I am
looking to charge 1-4 2700mAh AA batteries and 1-4 1800mAh AAA
batteries.

Within reason, the output current doesn't matter. Just that the lower it
is the longer it will take. And I still reckon an overnight charge at
1/10th of the capacity is the kindest on the batteries.

--
*Nostalgia isn't what is used to be.

Dave Plowman London SW
To e-mail, change noise into sound.

On Tue, 05 Jun 2007 15:08:41 -0700, nthng2snet wrote:

Looking for a battery re-charger for 2700mAh Ni MH AA batteries on a
well known online auction site and can't seem to find one suitable.
What output from the charger is sufficient to recharge 4x2700mAh AA
batteries. A reply from on LCD charger supplier said the output was
1000mA per channel, so how that recharge a 2700 mAh battery ? I am
looking to charge 1-4 2700mAh AA batteries and 1-4 1800mAh AAA
batteries.

At 1000mA (i.e. 1A) it would take nominally 2.7 hours to recharge a
2700mAh battery. (Do the sums!)

Actually it would take almost half as long again because batteries are far
from perfect, but a good charger will keep applying current to a cell
until it detects that it is full - whether that's 5 minutes to top up an
almost charged one or 5 hours on a completely discharged mega-capacity
cell.

7dayshop do an own-branded changer identical to the Vanson "1-hour" 4 x
AA/AAA chargers.which I'm very happy with (the Vanson version that is).

--
John Stumbles

I've got nothing against racists - I just wouldn't want my daughter to marry one

In message . com,
wrote
Looking for a battery re-charger for 2700mAh Ni MH AA batteries on a
well known online auction site and can't seem to find one suitable.
What output from the charger is sufficient to recharge 4x2700mAh AA
batteries. A reply from on LCD charger supplier said the output was
1000mA per channel, so how that recharge a 2700 mAh battery ? I am
looking to charge 1-4 2700mAh AA batteries and 1-4 1800mAh AAA
batteries.



You appear to be mixing up the current that is available to charge the
battery with its capacity.

Consider that you have a 2700 mAh (milli Amp Hour) battery. This means
that it can supply 1mA for 2700 hours or 10mA for 270 hours or 100mA for
27 hours or 1000mA for 2.7 hours. These are 'perfect world' figures and
not what you would actually achieve.

Conversely, you have the same type of result when charging.

If a charger could only supply 1mA then it would take 2700 hours to
charge.

In your stated case, if a charger could continuously supply 1000mA to a
2700mAh battery it would take 2.7 hours to charge. The battery may get
rather hot.

--
Alan
news2006 {at} amac {dot} f2s {dot} com

in 642258 20070605 230841 wrote:
Looking for a battery re-charger for 2700mAh Ni MH AA batteries on a
well known online auction site and can't seem to find one suitable.
What output from the charger is sufficient to recharge 4x2700mAh AA
batteries. A reply from on LCD charger supplier said the output was
1000mA per channel, so how that recharge a 2700 mAh battery ? I am
looking to charge 1-4 2700mAh AA batteries and 1-4 1800mAh AAA
batteries.

http://www.7dayshop.com/catalog/prod...8a540cf489d772

On Wed, 06 Jun 2007 07:24:19 GMT, Bob Martin wrote:

|!in 642258 20070605 230841 wrote:
|!Looking for a battery re-charger for 2700mAh Ni MH AA batteries on a
|!well known online auction site and can't seem to find one suitable.
|!What output from the charger is sufficient to recharge 4x2700mAh AA
|!batteries. A reply from on LCD charger supplier said the output was
|!1000mA per channel, so how that recharge a 2700 mAh battery ? I am
|!looking to charge 1-4 2700mAh AA batteries and 1-4 1800mAh AAA
|!batteries.
|!
|!http://www.7dayshop.com/catalog/prod...8a540cf489d772

Which redirects you to a log on page, does not give the product itself.
--
Dave Fawthrop sf hyphenologist.co.uk 165 *Free* SF ebooks.
165 Sci Fi books on CDROM, from Project Gutenberg
http://www.gutenberg.org/wiki/Main_Page Completely Free to any
address in the UK. Contact me on the *above* email address.

wrote in message
ups.com...
Looking for a battery re-charger for 2700mAh Ni MH AA batteries on a
well known online auction site and can't seem to find one suitable.
What output from the charger is sufficient to recharge 4x2700mAh AA
batteries. A reply from on LCD charger supplier said the output was
1000mA per channel, so how that recharge a 2700 mAh battery ? I am
looking to charge 1-4 2700mAh AA batteries and 1-4 1800mAh AAA
batteries.

No connection with this seller, just a satisfied customer. I bought one of
these;

Ebay Item No. 290035703991 , or

http://cgi.ebay.co.uk/Energizer-15-M...QQcmdZViewItem

The batteries do, understandbly get quite warm, but the charger has a fan
under the batteries which blows air across them to cool them (slightly). I
am more than happy with my purchase.

Glenn

On Jun 6, 12:55 pm, "Glenn" wrote:
wrote in message

ups.com... Looking for a battery re-charger for 2700mAh Ni MH AA batteries on a
well known online auction site and can't seem to find one suitable.
What output from the charger is sufficient to recharge 4x2700mAh AA
batteries. A reply from on LCD charger supplier said the output was
1000mA per channel, so how that recharge a 2700 mAh battery ? I am
looking to charge 1-4 2700mAh AA batteries and 1-4 1800mAh AAA
batteries.

No connection with this seller, just a satisfied customer. I bought one of
these;

Ebay Item No. 290035703991 , or

http://cgi.ebay.co.uk/Energizer-15-M...200mAh-AA-Batt...

The batteries do, understandbly get quite warm, but the charger has a fan
under the batteries which blows air across them to cool them (slightly). I
am more than happy with my purchase.

Glenn

How long have you had it? How many times have you used in on any
particular cell?

MBQ

wrote in message
oups.com...
On Jun 6, 12:55 pm, "Glenn" wrote:
wrote in message

ups.com... Looking for
a battery re-charger for 2700mAh Ni MH AA batteries on a
well known online auction site and can't seem to find one suitable.
What output from the charger is sufficient to recharge 4x2700mAh AA
batteries. A reply from on LCD charger supplier said the output was
1000mA per channel, so how that recharge a 2700 mAh battery ? I am
looking to charge 1-4 2700mAh AA batteries and 1-4 1800mAh AAA
batteries.

No connection with this seller, just a satisfied customer. I bought one
of
these;

Ebay Item No. 290035703991 , or

http://cgi.ebay.co.uk/Energizer-15-M...200mAh-AA-Batt...

The batteries do, understandbly get quite warm, but the charger has a fan
under the batteries which blows air across them to cool them (slightly).
I
am more than happy with my purchase.

Glenn

How long have you had it? How many times have you used in on any
particular cell?

MBQ


Had it 6-9 months or so. I have not charged any individual cell more than
about 10 times. I do only use branded cells though. I have not noticed any
ill effects on the batteries in this fairly limited test.

Glenn

GM6TRS wrote:
"John Rumm" wrote in message
...
wrote:

batteries. A reply from on LCD charger supplier said the output was
1000mA per channel, so how that recharge a 2700 mAh battery ? I am

In just under 3 hours is the answer.

The charge rate dictates only how long it takes to charge the cells,
not whether it can or not.

looking to charge 1-4 2700mAh AA batteries and 1-4 1800mAh AAA
batteries.

This is the sort of thing you need:


http://cgi.ebay.co.uk/Fast-Smart-Cha...QQcmdZViewItem

(I can recommend the cells from this seller as well, they perform
very well)


I've just used this seller too - AA & AAA cells, and charger, highly
recommended.

Martin

Why doe he say 2700mAh when the batteries clearly show 2600mAh?

--
ThePunisher

On 2007-06-06, Glenn wrote:
wrote in message
oups.com...
On Jun 6, 12:55 pm, "Glenn" wrote:
No connection with this seller, just a satisfied customer. I bought one
of these;

Ebay Item No. 290035703991 , or

http://cgi.ebay.co.uk/Energizer-15-M...200mAh-AA-Batt...

The batteries do, understandbly get quite warm, but the charger has a fan
under the batteries which blows air across them to cool them (slightly).
I am more than happy with my purchase.

How long have you had it? How many times have you used in on any
particular cell?

Had it 6-9 months or so. I have not charged any individual cell more than
about 10 times. I do only use branded cells though. I have not noticed any
ill effects on the batteries in this fairly limited test.

I have a Vanson V-6000. It works fine. It fast charges AA NiMH
cells at about 2000 mA before dropping back to trickle (on delta-V,
on over-temperature sense, or on a safety timeout).

However I recently had to discard three out of a set of eight "unknown
brand" AA NiMH cells after about six cycles. They started to emit the
odd sharp "crack" when on fast charge. The "cracks" even continued for
a short while after removing the cells from the charger.

I have cells of two other brands that continue to charge uneventfully.

I have the same suspicion as above that fast chargers might best be
partnered with "trusted brand" cells.

--
John Phillips

In article ,
John Phillips wrote:
I have the same suspicion as above that fast chargers might best be
partnered with "trusted brand" cells.

I wonder why everyone seems to want the complication of fast charging? I
can understand a tradesman needing it for a much used drill, etc, but why
with AA cells? What piece of equipment that uses these would benefit from
a 1 hour charge? All the things I use these for last for more than a day -
so a spare set of batteries and an overnight charge does just fine.

--
*Why do psychics have to ask you for your name? *

Dave Plowman London SW
To e-mail, change noise into sound.

ThePunisher wrote:


Why doe he say 2700mAh when the batteries clearly show 2600mAh?

Wron photo perhaps:

http://cgi.ebay.co.uk/16-x-AA-2700mA...QQcmdZViewItem

--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

I was under the impression that a 2700 maH cell needed 1.4 times its
capacity put in to fully recharge from flat i.e. approx 4000 mah,
so at 1000 maH charging current that would be 4 hours.... or are NiMH
cells 100% efficient now in converting charge current ?

Nick

In article ,
Nick wrote:
I was under the impression that a 2700 maH cell needed 1.4 times its
capacity put in to fully recharge from flat i.e. approx 4000 mah,
so at 1000 maH charging current that would be 4 hours.... or are NiMH
cells 100% efficient now in converting charge current ?

1.4 times is certainly a 'benchmark' for recharging - you use 14 hours at
a 1/10th rate with Ni-Cads. Whether it applies at other charge rates and
battery types I dunno.

--
*No hand signals. Driver on Viagra*

Dave Plowman London SW
To e-mail, change noise into sound.

On Wed, 06 Jun 2007 17:18:48 +0100, Dave Plowman (News) wrote:

I wonder why everyone seems to want the complication of fast charging?

Because Sod's law decrees that just when you're about to take out your
digicam, r/c toy or whatever you realise you haven't recharged the
batteries for ages and you'd better do it now. That's when being able to
slap them in the Vanson and get green LEDs within 10 or 20 minutes is
_much_ more convenient than waiting 14 hours!

As for the "complication", why does everyone want the complication of a
mobile phone? It's only complicated to the designer: for the user
it makes life simpler.

--
John Stumbles

A backstreet vasectomy left me sterile

In article ,
John Stumbles wrote:
I wonder why everyone seems to want the complication of fast charging?

Because Sod's law decrees that just when you're about to take out your
digicam, r/c toy or whatever you realise you haven't recharged the
batteries for ages and you'd better do it now. That's when being able to
slap them in the Vanson and get green LEDs within 10 or 20 minutes is
_much_ more convenient than waiting 14 hours!

I can see that with something like a camcorder. But the question was about
AA cells which must be being used in something which doesn't have its own
charger etc. So will require the discipline of changing batteries and also
having spares?

As for the "complication", why does everyone want the complication of a
mobile phone? It's only complicated to the designer: for the user
it makes life simpler.

But don't the design of these allow for easy recharging - you just plug
them in at the end of the day? Of course I don't use my mobile as much as
most.

--
*Why do they put Braille on the drive-through bank machines?

Dave Plowman London SW
To e-mail, change noise into sound.

On 07/06/2007 10:00, Dave Plowman (News) wrote:

I can see that with something like a camcorder. But the question was about
AA cells which must be being used in something which doesn't have its own
charger etc.

Because once you start out with rechargeables you tend to make a /point/
of buying things that will re-use AA batteries, OK so most remote
controls use them anyway, but I've been picky when choosing wireless
mice, cameras, central heating programmers, torches, radios. Psion lost
that and other battles for PDAs though.

Same applies for memory cards, I try to avoid anything other than CF or
SD/MMC.

In article ,
Andy Burns wrote:
I can see that with something like a camcorder. But the question was
about AA cells which must be being used in something which doesn't
have its own charger etc.

Because once you start out with rechargeables you tend to make a /point/
of buying things that will re-use AA batteries, OK so most remote
controls use them anyway, but I've been picky when choosing wireless
mice, cameras, central heating programmers, torches, radios. Psion lost
that and other battles for PDAs though.

Well yes. Same as me. Which means you will keep some ready charged ones as
spares. If your mouse doesn't work waiting even half an hour would be a
pain. But if you do have spares, an overnight charger then is no
inconvenience. With the considerable benefit of longer cell life.

--
*Men are from Earth, women are from Earth. Deal with it.

Dave Plowman London SW
To e-mail, change noise into sound.

On 07/06/2007 10:55, Dave Plowman (News) wrote:

Well yes. Same as me. Which means you will keep some ready charged ones as
spares.

I have a fast 4xAA/AAA charger with fan (can also run from 12V car
socket) and a larger AA/AAA/C/D/PP3 charger

With the considerable benefit of longer cell life.

My oldest cells are about 3 years old, and all seem to hold+deliver
charge well, the "mere" 2200mAH ones tend to get side-lined in favour of
the 2500 and 2700 ones though.

On Thu, 07 Jun 2007 10:55:16 +0100, Dave Plowman (News) wrote:

... With the considerable benefit of longer cell life.

But is that so? Modern intelligent chargers should cut off at the
fully-charged point and maybe trickle after that, whereas AIUI
overcharging NiMHs at even C10 isn't good for them.

--
John Stumbles

A backstreet vasectomy left me sterile