[Ray’s] breadboard power supply lets you drain the last traces of power from ‘dead’ AA batteries. Electronics that are powered off of disposable alkaline batteries have a cutoff voltage that ...

Batteries charged at the lower voltage met BCI voltage standards for a fully charged battery. The AAA Premium BAT8448AAA is part of the Car Batteries test program at Consumer Reports. In our lab ...

Winter's frightful weather isn't so far away, and AAA says now is the time to get your vehicle ready for the cold.

Spread the loveYou’ve seen A batteries, AA batteries, AAA batteries, and even C and D batteries. But have you ever wondered why there are no B batteries? It’s a question that has puzzled many, and the ...

Our rigorous testing gives a fuller, all-round picture of every battery's performance. We measure their longevity when they're powering high-drain devices, test their capacity and how it changes after ...

This deal is good for $5 in savings, which is 20% off the regular price. Here you can grab a quality charger with four AA Energizer batteries. The smart battery charger takes just three hours to ...

Batteries charged at the lower voltage met BCI voltage standards for a fully charged battery. The AAA Premium BAT8451RAAA is part of the Car Batteries test program at Consumer Reports. In our lab ...