BMPRO’s ProBoost25 is a DC to DC battery charger that allows you to charge a secondary battery using solar panels and/or a towing vehicle’s 12 Volt electrical system. The ProBoost25 blends both the solar and auxiliary inputs together, up to a maximum of 25 Ampere, to ensure there is always a consistent charge to your battery. Compatible with both lead-acid and lithium LiFePO4 batteries, the high power density design of the ProBoost25 provides efficiency of up to 93 Percent. The ProBoost25 has an ultra-thin design, making it suitable for installation in small spaces, and is resilient to shaking, as well as wet, dusty or muddy environments. A range of protective features built into the ProBoost25, such as over temperature, overvoltage and under voltage protection, will guard your charging capacity.