Maximize charging efficiency with the BMPRO ProBoost25 a multi-stage DC-to-DC battery charger compatible with solar panels and 12V vehicle systems. The ProBoost25 intelligently blends solar and auxiliary inputs for a consistent charge ensuring your secondary battery is always ready to power your journey. With compatibility for both lead-acid and lithium LiFePO4 batteries this charger boasts an efficiency of up to 93%. Its ultra-thin design makes it ideal for limited space installations and it's built to withstand harsh environments. Features. 25A lithium DC-DC charger with solar input. Compatible with lead-acid and lithium LiFePO4 batteries. Dual input MPPT solar/aux (alternator) for consistent charging. Multi battery chemistry selector. Smart alternator compatible. IP66 rating - resistant to dust water and shock damage. Maintains a 100% state of charge for auxiliary batteries. BMPRO signature durability and ease of useSpecifications. Input Voltage: 9-18V DC. Solar Input Voltage: 10-32V. Maximum Input Current: 27A. Continuous Output Current: 25A. Operating Temperature: -20C to 80C. IP Rating: IP66