Rechargeable batteries that last longer and re-charge more rapidly

[OKIsItJustMe]

4. They work great for me! (Your mileage may vary.)

(According to Wikipedia), An alkaline AA has a capacity of 1700 mAh to 3000 mAh. (Grab one and look at the fine print on the side.) A rechargeable NiMH has a capacity of 1300 mAh to 3500 mAh.

Personally, I like Eneloops. I use them in “everything.” (Flashlights, cameras, remotes, the keyboard I’m typing on…)

One problem, for some devices, is that an alkaline cell (nominally) puts out 1.5V, while a NiMH (nominally) puts out 1.2V, but the alkaline cell drops off fairly quickly:


For “high-drain” devices, or extreme temperatures, you may want to try “Eneloop Pro’s.”

However, the OP is primarily about Lithium-ion batteries, like you find in cell phones, laptop computers and electric cars.