Powerbutler: 12V-Ladegerät lädt E-Bike-Akkus von über 100 Herstellern
12V Car E-Bike Charger 36V 42V Li-Ion Battery Charging Power Supply 2A 5.5 / 2.1mm USB | eBay
Amazon.com: Beleeb Multi Voltage Battery Charger 12V 24V 36V 48V 60V 72V for Lead-Acid and Lithium-ion Battery,Trickle and Desulfator, 19lb, Black : Automotive