2500mAh 1.2V Nickel Metal Hydride rechargeable 'AA' batteries. NiMH technology provides all the benefits of NiCads without the toxic ingredients and without the memory effect problem! 2500 mAh is a large capacity cell perfect for handheld, RF, and digital camera applications. We use these in everything! 26 grams per cell.
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If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.
Skill Level: Noob - You don't need to reference a datasheet, but you will need to know basic power requirements.
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The prior 2500mAh NiMH AAs by the same manufacturer didn't compete against my 2100mAh Energizer NiMH AAs. They don't hold a charge as long on the shelf and don't last as long in high-drain applications. I haven't tested them in lighter-duty applications. I wonder if the 2700mAh AAs are improved.
Also don't get these wet or near moisture. The + side will corrode. AKA don't leave These outside in your project over winter. I ended up replaced every one of these batteries with Energizer NiMH AA in all of my solar lanterns and the Energizer NiMH gives out brighter light and last longer.
Sparkfun doesn't sell any compatible charger, right? It could be a good idea...
Are these the "precharged" type? The "precharged" type has something different that allows it to hold charge much longer in storage than standard NiMH batteries, where as plain old NiMH have a significant loss of charge over time
How do these compare with the eneloop or pro eneloops? Recent online surveys seem to put those as the best NiMH batteries available. Are these similar? Are they really 2500mAh? Making the switch from LiPo, at least for some projects, and want to start off with the good NiMH batteries and charger.
What do these weigh?
"26 grams per cell", as per the description :) (note: 1 'AA' battery = 1 cell for these types.)
I should learn to read. ._.
Are Rechargeable right? Thanks a Lot.
How much current can you draw from these?
several amps, NiMH have very low ESR
I think around .3 - .4 Amps each.
When are we going to get some AAA NiMH rechargeable batteries?
Many nickel compounds have unpleasant biological effects. You should still keep these separate from normal household waste. Many retailers operate collection/recycling schemes, though they don't always publicize them very well!
I'm assuming these are 1.5 Volt each just like a normal AA. Am I wrong?
NiMH batteries are 1.2V per cell.