+A **battery charger** is an [electronic device](/wiki/electronic_device) designed to restore [electrical energy](/wiki/electrical_energy) to a secondary cell. It precisely manages current and voltage to replenish the [battery](/wiki/battery), enabling countless recharges.
+## See also
+- [Battery](/wiki/battery)
+- [Power Supply](/wiki/power_supply)
+- [Energy Storage](/wiki/energy_storage)
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