Amazon.com: USB Rechargeable AA Batteries by Pale Blue, Lithium Ion 1.5v 1560 mAh, Charges Under 1 Hours, Over 1000 Cycles, 4-in-1 USB to Micro USB Charging Cable, LED Charge Indicator, 4-Pack :
Wiederaufladbare Batterien 4,2 V Batterie 10000 Mah Lithium-Ionen-Akku Mit Hoher Kapazität 4,2 V 2Pcs: Amazon.de: Elektronik & Foto