Battery complaints are one of the most common repairs. Here are five signs it’s time for a replacement — and how to choose a quality cell.

1. Fast drain

The phone loses charge quickly even with light use.

2. Unexpected shutdowns

The device powers off above 20% — a classic sign of a degraded cell.

3. Swelling

A lifting screen or bulging back means a swollen battery — replace immediately for safety.

4. Overheating

Excess heat while charging or idle points to a failing battery.

5. Health below 80%

Reported battery health under 80% means reduced capacity.

Choosing a quality battery

Look for full-rated mAh capacity, a protection circuit, and cycle-tested cells. Shop replacement batteries →