You'll probably want to know how to check Android battery health if you've used the same phone for a year or so. As you charge and discharge any battery, it slowly becomes less effective at holding power over time, which means you'll have to charge it more often.
However, there are a few ways to give your Android smartphone's battery a check-up. The simplest method only tells you about what your battery power is currently being used for, though you can then force-close apps if you wish. You can access more in-depth information, depending on the brand of phone you're using, or by installing specialist apps.