Amazon.com: 12V 24V 48V 30A Lead Acid Battery Charger, Car Battery Charger, Reverse Connection and Short Circuit Protection (European item) : Automotive
48V 110V AC 17A Lithium Charger (50.4V DC) - ShopSolar.com
Battery Charger 12V into 48V
MARS 12-48 30 HF multi-voltage battery charger e 12/24V, 36V, 48V 3-30A 1Ph 230 Vac | Polar electronics
12V volt to 48 volt DC/DC battery charger for lead acid and lithium batteries (common negative) 1250 Watts Robust, marine, heavy duty from PowerStream.