12V (only) to 48V Battery to Battery Charger w/ reverse charging featu – Sterling Power Products
Fdit Battery Equalizer 48V Battery Voltage Balancer Max 4 × 12V Battery Bank Solar System Battery Balancer Equalizer for Lead-Acid Batteries Charger : Amazon.co.uk: Automotive
Sterling Power Battery to Battery Charger 12V-48V 70A input
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.
Battery charger 12V - 48V / 30A
ICON 48v / 10 Amps Battery Charger, 1-4, 12V-48V at Rs 5250 in Ahmedabad | ID: 24929983162
Battery Charger 12V/24V/36V/48V/60V/72V Lead Acid Battery Chargers Smart Charger with Trickle Charge, for EZGO with D Style Plug,Plug A,12V10A: Amazon.co.uk: Automotive