Check out our best rechargeable battery chargers.Battery Type: 2000mAH capacity, NiHM battery.

The Panasonic Eneloop 2100 Cycle Ni-MH Pre-Charged Rechargeable Batteries are ideal for devices that drain your batteries on a daily basis. Learn more about how Insider Reviews tests and researches tech products. Our guide features batteries that are affordable, deliver on their capacity ratings, and will withstand hundreds of charge cycles. While researching the best rechargeable batteries, we looked at thousands of buyer and expert reviews and ratings of several brands. They rarely deliver quality and could potentially harm your devices and charger. You should avoid knockoffs and discount brands. This is why many of the experts recommend simply paying attention to the per-battery costs and going with the cheapest name-brand cell. And, most standard rechargeable AA batteries are rated for 2,000mAh and AAAs are 800mAh with slight, generally insignificant differences between brands. Just about all rechargeable AA and AAA batteries use NiMH because of its large capacity, and LSD batteries are the best because they hold the charge for longer when your device is not in use.īattery capacity is measured in milliamp hours (mAh). We also focus on nickel-metal hydride (NiMH) low self-discharge (LSD) batteries. In fact, the Panasonic Eneloop even offers C and D spacers that make it so you can use AA batteries in devices that require C and D batteries.

Many of the brands we cover also offer their batteries in C and D sizes. In our guide, we are focusing on AA and AAA batteries because these are by far the most popular rechargeable battery sizes. Plus, they're better for the environment, too. Rechargeable batteries are more expensive than single-use batteries, but in the long run they can save you money.