• Batteries

They’re inside every iPhone, iPad, iPod, Apple Watch, MacBook, and AirPods, helping you do all kinds of things in all kinds of places. Find out more about your battery to get the most out of it throughout its lifespan — and beyond.

Works with All AA and AAA NiMH Rechargeable Batteries and Charges 2 or 4 Batteries at a Time Rated 4.5 out of 5 stars based on 1097 reviews. Car batteries wear out over time, and extremely hot or cold weather can speed up a good battery’s demise. The cold is commonly thought of as a killer of batteries, but that's because the it takes more exertion. Typically these batteries lose strength before the winter, and then finally fail when trying to start up the engine in the cold. MAX AA Batteries (36 Pack), Double A Alkaline Batteries Power the devices you love with Energizer Power the devices you love with Energizer MAX Alkaline AA Batteries. These Energizer batteries fuel the technology that helps you live, work and play, whether you need remote batteries, clock batteries, or backup batteries for your child's favorite toys and games.

Why Lithium-ion?

Rechargeable lithium-ion technology currently provides the best performance for your device. Compared with older battery types, lithium-ion batteries weigh less, last longer, and charge more efficiently.

Maximizing Battery Performance

The single biggest factor affecting battery life and lifespan is the mix of things you do with your device. Videos and games? Or email and word processing? No matter how you use it, there are ways to extend your battery’s performance.

Service and Recycling

Batteries

All rechargeable batteries have a limited number of charge cycles and may eventually need to be serviced. If you find yourself charging your device more frequently, it might be time for a new battery.