Sterling Power BB1248120 battery to battery charger with 12V or 24V input (auto-selecting) and 48V output, for charging a 48V battery bank from a 12V or 24V system.

• Lithium and lead charge modes, with preset and custom profiles
• Bidirectional, with Jump Start Assist
• Current limiting and parallel operation
• Activated by ignition feed or vibration sensing
• Compatible with Euro 6+ smart alternators
• Optional BBR remote available

Specifications are from Sterling Power. Check the manufacturer documentation for installation details.