Best AA size Battery Required

bookduck

have a read, you'll find they hold more charge than alkaline, but have a slightly lower voltage as mentioned. Perhaps your camera is dependant on that slightly higher voltage?
http://www.steves-digicams.com/nimh_batteries.html
http://www.imaging-resource.com/ACCS/BATTS/BATTS.HTM
http://www.krabach.info/battery_tests/AA_battery_tests.html

but i'd go for the 2700 from 7daydhop ad advertised above too. If they don't last that long and you use your camera often, then it just might be time for new camera.

isofa

buglawton wrote: »

<snip>is that Eneloops maintain that critical higher voltage through nearly the whole discharge cycle so actually last much longer. Well if any MSEers try the Eneloop, let us know what you think. They are available much cheaper than the Amazon link above if you Google around.

Perhaps a little similar to Uniross Hybrio technology (been around a while) ? They don't loose their charge when stored, but can only be charged about 500 times, not sure about output voltage though, cheap at Amazon:

http://www.amazon.co.uk/Uniross-Hybrio-AA-2100mAh-Batteries/dp/B000KG5G5I/

ali99

The batteries from 7dayshop, how long do they hold their charge if not used? I don't know whether to go for the more expensive hybrio ones or not.
Thanks
Ali

fwor

If they are standard NiMH rechargeables, they will lose roughly 30% of their capacity per month.

Trouble is, if you go for the most recent design with lower self-discharge rates, they seem to have lower overall capacity, so to my mind don't really seem worth the extra money.

If you are self-organised enough, the best solution IMO seems to be to use standard NiMH, take a spare set with you, and make sure you charge them just before you need them.

Inactive

roddydogs wrote: »

Dont understand how 2 batts can have the same cap as 4, what Olympus have you got? ive tried Fuji 2700 mha the highest i can find, and their still no good. even if you just leave them in the camera, they discharge .my cam is model no D-540 their is still load of power left for, say a toothbrush, but not the camera.
Must have a fault on the camera.

Did you get the Fuji Batteries from E Bay?

Some people are selling batteries on there that appear to be from Fuji, but they are not.

roddydogs

Inactive wrote: »

Did you get the Fuji Batteries from E Bay?

Some people are selling batteries on there that appear to be from Fuji, but they are not.

Yes they appear to be genuine Fuji, but perhaps their not? any way of telling?

buglawton

You should read this review which explains why an apparently 2000mAh battery Eneloop battery would outperform a standard 2500 mAh one:

http://www.stefanv.com/electronics/sanyo_eneloop.html

and then more precisely, how the Eneloops keep their voltage higher during the discharge cycle - so your camera or whatever stays switched on rather than switching itself off even though there is power left in the batteries:

http://img.photobucket.com/albums/v482/SilverFoxCPF/SanyoAA2700atVariousRates.gif << Standard NiMH

http://img.photobucket.com/albums/v482/SilverFoxCPF/EneloopAA2000atVariousRates.gif << Eneloop NiMH

fwor wrote: »

If they are standard NiMH rechargeables, they will lose roughly 30% of their capacity per month.

Trouble is, if you go for the most recent design with lower self-discharge rates, they seem to have lower overall capacity, so to my mind don't really seem worth the extra money.

If you are self-organised enough, the best solution IMO seems to be to use standard NiMH, take a spare set with you, and make sure you charge them just before you need them.

roddydogs

Just ordered 4 Eneloops from component-shop.co.uk for £7.99 INC Postage.Will keep u posted!

espresso

roddydogs wrote: »

Just ordered 4 Eneloops from component-shop.co.uk for £7.99 INC Postage.Will keep u posted!

Why have you ordered those? You don't seem to understand how capacity is measured! They are only 2000mAh which is pathetic! Why did you not go for the 2700mAh or the 2900mAh?

steve_r123

espresso wrote: »

Not true, two batteries have the same capacity as four batteries and if the electronics is designed to work off a lower voltage, two batteries are fine capacity wise.

Rechargeable NiMh can have much higher capacity than Duracell AA MN1500 alkaline batteries. Spec here showing a capacity of 2000mAh.
A good quality charger is required to get the best out of NiMh batteries e.g. here and higher capacity 2700mAh batteries are available here.

My Olympus doesn't drink batteries!

:rolleyes:

What is the kit like from this 7dayshop place? I'm just looking at that own brand charger which has been posted, and I dont mean to be rude, but it looks like something you would get down the market, and not last 2 minutes.

If it's gucci kit at a bargin price, then I'll buy it..... just looking for a recommendation or two first