Power & batteriesEveryday

Glossary

mAh

Also: milliamp hours, battery capacity

mAh is a battery capacity rating that hints at how much charge a device can store.

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mAh is a battery capacity rating that hints at how much charge a device can store. In everyday buying decisions, the useful question is not just what the spec says, but what it changes for comfort, cost, speed, safety, or battery life.

Battery lifeFast chargingWattage

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Updated Jun 26, 2026