Check the listing for details. 100A MPPT Solar Panel Regulator Charge Controller 12/24V Auto Focus Tracking New. Color: Blue, Condition: New. Listed at 21.99 USD. 1. Before the first installation, please make sure the battery has enough voltage so that the controller can recognize the type of battery. 2. The battery cable should be as short as possible to minimize losses. 3. The charge controller is only suitable for regulation of solar modules. Do not connect other load sources to the charge controller. MPPT solar charge controller. Compared with ordinary solar charge controller, this MPPT controller can improve the efficiency by 10%-30%, and always keep the battery in full voltage state. Auto-focus MPPT tracking charging, high charging efficiency, uninterrupted detection while charging, bi-directional focus tracking. Large LCD display with adjustable charging and discharging parameters. The MPPT controller has perfect SOC function to control the charging current and supply power to the load, when the battery voltage is too low, the controller will automatically cut off the load in the system. If the battery voltage returns to normal, the load will start working again. Prevent battery overcharge, overdischarge and reverse charging of solar panel at night,Prevent battery reverse charging of solar panel at night,Reverse polarity protection of battery,Reverse polarity protection of solar panel,Lightning protection Package included: 1 x Solar Panel Controller Product Specification: Rated voltage ： 12/24V Rated current ：100A Max. PV voltage： 50V Max. PV input power： 750W(12V) / 1500W(24V)