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Amazon.com: 9V 300 mah Rechargeable Batteries by Ansmann : Health & Household
LiFePo4 IFR 14505 Akku AA 4er Set 600mAh 3,2V 14500 Button Top Batterie Lithium-Eisen-Phosphat Akku Solar Flat-Top Batterie: Amazon.de: Elektronik & Foto
Keeppower 18650 - 3500mAh, Li-Ionen 3,7V - 3,6V - PCB geschützt mit USB Lademöglichkeit P1835U | akkuteile.de