The Best Rechargeable Battery Charger (for AA and AAA Batteries) | Reviews by Wirecutter
Fenix ARE-A4 Multifunctional Battery Charger – Fenix Store
Amazon.com: Speedy 18650 Battery Charger XTAR PB2C USB Output Function, Portable Li-ion 18650 Battery Charger Box w/USB Port and LED Display for all 18650 Batteries(Batteries NOT included) : Electronics