high-capacity AAA NiMH batteries - who sells them?

Question

I was seeking some AAA batteries for a cordless phone, to extend the talk time. The existing batteries are 970 mAh, so I was hoping to get some 1300 mAh. Local shops don't seem to stock anything over

1000 mAh. On fleabay, there are tons of Asian vendors offering 1300 mAh, but these are brands I never heard of. Also, I saw two sellers with pictures of the same battery, and one claimed it is 1300 mAh, but the other seller lists it as only 1250 mAh. I start to wonder if any of them are truly rated. Has anybody found any AAA that really has the extra stamina?

Sylvia Else · Accepted Answer

Are you sure it's their capacity that's the issue and not their self-discharge rate? How long are you leaving the phone between charges?Sylvia.

terryc · Answer

Try  not sure of exactly what they have.

BW · Answer

Generally, I leave the phone on charger until it shows full charge. Leaving it there full time will reduce the battery life, as it is not a smart charger. Even when showing full charge, it only lasts 60 minutes (the trouble and strife can natter this long with any of her gossiping friends). When she was away for a week, the battery took about 5 days to go flat.

Sylvia Else · Answer

OK, so not a self-discharge issue. Sounds like a higher battery capacity would simply result in longer conversations though.

1 hour seems a very short talk time. Maybe she's already trashed some of the batteries by overdischarging them:

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I looked around the net, as you have obviously done, but didn't find high capacity cells from reputable suppliers either. There's clearly a theoretical upper limit on the capacity of a cell of a given volume or mass, and 1300mAh may be pushing it for an AAA.

Maybe it's time to look at a new phone instead? I brief search revealed this page:

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Sylvia.

geoff · Answer

Maybe it's not the phone that is the problem or needs replacing ?!!geoff

Sylvia Else · Answer

Replacing the phone is bound to be cheaper than replacing the wife.Sylvia.

Dennis · Answer

Thailand & the Philipines have some inexpensive models.

Sylvia Else · Answer

I was more thinking of the ongoing costs of getting rid of the old one.Sylvia.

Dennis · Answer

I neglected legacy costs.

geoff · Answer

All this talk of recycling. Do the right thing here and you want to do the best in dumping your old CRT TV and they want to charge you $25 !

Getting rid of old junk just ain't so easy (or cheap) any more ....

geoff

TonyS · Answer

Stay away from no-name batteries that are offered on eBay. Their ratings are pure fantasy. Some don't even have 20% of the nominal capacity! I have been testing a number of AA and AAA batteries over the last 3 month. Surprisingly, Woollies Essentials were pretty good value for money if it comes to capacity.

high-capacity AAA NiMH batteries - who sells them?

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