High Power DC DC Converter 24V to 48V 42A 2000W Boost Converter RCNUN Waterproof Step-up Voltage Regulator Car Power Supply - AliExpress
36V /48V DC to 24V DC to DC Power Converter - Type A
Amazon.com: XWST DC 24V Step up to 48V 3A 144W Converter Voltage Converter, 48Volt Regulator Waterproof DC/DC Boost Transformer Power Supply (24V to 48V 3A) : Electronics
Isolated DC-DC Converter, 48V to 24V | ATO.com
24V 36V 48V to 12V 5A 60W DC DC Step Down Converter Voltage Regulator – Daygreen
Marine DC-DC Converters | 12V, 24V, 36V and 48V DC | 3 - 50 Amps | Newmar | DC Power Onboard
SD-500L-24 24V or 48V to 24V Meanwell DC DC Converter