AA & AAA battery tests
Stop guessing which batteries to buy. We test them.
Real runtimes for AA and AAA cells, chargers and accessories, so you buy the ones that last.
capacitymAh
Real capacity at a steady load, against the number on the label.
dischargeV / t
How the voltage holds up from full to empty.
cost$ / cell
What each cell costs, and what each charge or use costs.
shelf life% / mo
How much charge a cell loses sitting in a drawer.
Reviews
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The first batteries are on the bench now.