MPPT Solar Charge Controller 80A (L80) 12V 24V Auto Description A compact and easy to use MPPT solar charge controller designed for 12V and 24V systems with automatic voltage detection. Delivers 80A charging current and combines MPPT and PWM charging modes to improve conversion efficiency while providing a clear LCD interface and onekey load control. Key benefits Reliable battery management: multiple protections prevent reverse discharge, reverse polarity, under voltage, overload, and short circuit, reducing the risk of battery damage. Better energy conversion: MPPT plus PWM charging modes increase paneltobattery conversion efficiency and adapt to varying solar conditions. Simple operation: LCD screen and easy interface make setup and monitoring straightforward. A single button opens and closes the load for convenient control. Flexible charging: supports simultaneous charge and discharge so the battery can be maintained at full status during system operation. Optional USB 5V output supplies up to 1500 mA for small devices. Main features Size and model: 80A (L80) System compatibility: automatic detection for 12V and 24V systems Protections: battery reverse discharge protection, battery reverse polarity protection, battery under voltage protection, overload protection, shortcircuit protection Temperature management: automatic temperature compensation to adjust charging parameters as temperature changes Load control: onekey load on and off for lighting or other loads Timing and lighting: builtin timer for lighting function and scheduled control Display and interface: LCD screen display with easy operation interface Charging modes: MPPT charging plus PWM mode to improve conversion efficiency USB output: optional 5V USB charging port at 1500 mA for phones and small electronics Package includes 1PC MPPT Solar Controllers 1PC User Manual (English) Typical applications Offgrid solar lighting: control and schedule LED lighting for cabins, gardens, or street lighting while protecting the battery from deep discharge and reverse connection. RV and marine power systems: manage charging from solar panels on 12V or 24V vehicle systems, with USB charging for small devices and onekey load control for accessories. Small offgrid power systems: charge and manage battery banks for remote cabins, workshops, or monitoring stations where automatic temperature compensation and multiple protections are needed. Technical notes Ensure correct system voltage selection or allow automatic detection before connecting panels and battery. Use proper wiring and fuses sized for 80A continuous current. The USB 5V output is optional and provides up to 1500 mA for charging lowpower devices. This controller provides practical protection and control features for small to medium offgrid solar installations, with a simple user interface and flexible charging modes suitable for 12V and 24V systems.