With other rechargeable battery types, voltage is normally made clear by the description, 9V, 12V, etc. Amp-hours, or milliamp-hours (mAh) in the case of smaller batteries, can best be described ...

We tested 13 popular rechargeable batteries to compare their affordability, performance and reliability. Three emerged as the absolute best for most users.

A rechargeable USB-C battery looks much like a regular single-use battery, but with one key difference: it has a USB-C port built into the positive end. When it runs out of power, you simply need ...

Panasonic’s Eneloop BQ-CC55, our favorite charger for AA and AAA rechargeable batteries, is sleek, compact, easy to use, and plugs directly into a wall outlet.

Sometimes I’d flip open the battery slot of a rarely used toy to find a crusty, whitish discharge from a leaky AA inside, or I’d leave the ’90s-era rechargeable batteries juicing up on a ...

Whether you’re looking for AAA, AA, C, or D batteries, there’s a rechargeable battery that’ll fit your needs. Many of them are relatively affordable, while premium picks might cost around $50.

Keeping Batteries Out of Landfills Eventually, every battery, whether single-use or rechargeable, will reach the end of its useful life. When it does, it’s essential that you dispose of it properly.

Photo by Sam Catchesides. Penzo posits that rechargeable batteries aren't always cost effective, suggesting that you're better off knowing when to choose an alkaline over a rechargeable battery.