These Panasonic Eneloop AAA batteries are good for up to 2,100 charges ... They can support 1,000 charging cycles, an while they do cost more than lower quality rechargeable batteries, they ...

When you run to the store to grab a pack of AAA batteries for the ... about home batteries, large batteries that act as a backup power source for your home, cost suddenly becomes important.

Our evaluation included extensive discharge tests to see which batteries lasted the longest -- including AA, AAA, C, D and 9-volt options. We also considered the cost per battery for each option ...

But buying batteries on repeat comes at a cost, and not just the financial kind. Traditional batteries - AA, AAA and 9V - must be disposed of properly to avoid leaking the heavy metals they ...