Battery Tender 50 AMP Solar Panel Controller - 12V / 24V / 36V / 48V PWM - Dual USB Port and LCD Status Indiscator Screen - Suitable for Lead Acid, AGM, Gel, and 12 Volt Lithium Batteries - 021-1177

Efficient: Increases battery life and performance with PWM charging, 8 programmable timers, and programmable charging voltage function; temperature sensors for battery charging compensation
Connect It and Forget It: Features an LCD screen and LED indicator to easily track battery status; capable of self-diagnosing errors and automatically detects the battery voltage
3-Stage Function: Built with 3-stage charging; determines battery connection, voltage, and charge level to automatically turn the output load on or off based on the selected battery voltage
Safety Features: Features spark proof and reverse hookup protection; compatible with 12, 24, 36, and 48 volt lead acid, AGM, GEL, and 12 volt lithium batteries
Capacity: Max output of 12 volt DC and 30 AMPs, and max input voltage of 100 volts, 12 volts at 750 watts, 24 volts at 1,500 watts, 36 volts at 2,250 watts, or 48 volts at 3,000 watts
Efficient: Increases battery life and performance with PWM charging, 8 programmable timers, and programmable charging voltage function; temperature sensors for battery charging compensation
Connect It and Forget It: Features an LCD screen and LED indicator to easily track battery status; capable of self-diagnosing errors and automatically detects the battery voltage
3-Stage Function: Built with 3-stage charging; determines battery connection, voltage, and charge level to automatically turn the output load on or off based on the selected battery voltage
Safety Features: Features spark proof and reverse hookup protection; compatible with 12, 24, 36, and 48 volt lead acid, AGM, GEL, and 12 volt lithium batteries
Capacity: Max output of 12 volt DC and 30 AMPs, and max input voltage of 100 volts, 12 volts at 750 watts, 24 volts at 1,500 watts, 36 volts at 2,250 watts, or 48 volts at 3,000 watts