How to read the code on a batteryThose letters and numbers aren’t random. Once you know the pattern, you can tell the size and type at a glance.Coin vs button vs watch batteriesThey look alike, but they’re not the same. Here’s how to tell them apart.Why some batteries taste bitterSome coin batteries are coated with a bitter-tasting layer. Here’s why, and when it causes trouble.
Guides
Battery guides in plain English
Short reads that make batteries less confusing.