SHAOAN MPPT (Maximum Power Point Tracking)Solar Charge Controller offer an efficient, safe, multi-stage recharging process that prolongs battery   life and assures peak performance from a solar array. Each Charge Controller allows customized battery rechargingFeatures as follow: 1. 30A/ 40A/50A/ 80A/100A/120A/150A MPPT solar charge controller 2. 12V /24V/ auto work 48V/96V auto work 3. MPPT tracking efficiency is up to 99%, and conversion and Efficiency is up to 98% 4. With TI DSP chip, digital with up to 12-bit accuracy guarantees MPPT accuracy 5. PV input voltage range is wide, users can choose different numbers of solar panels according to actual conditions 6. Under the maximum benefit of energy collection conditions, fast charging, absorption charging, floating charging, etc. Maintain the battery life 7. Support lead-acid battery/Gel battery, lithium battery, user-defined battery 8. Can display PV voltage, PV power, battery voltage, charging current, working temperature, fault code 9. With over charge, over discharge, overload, open circuit protection, over temperature protection and short circuit automatic protection