30A MPPT Solar Charge Controller 12V/24V Negative Grounded Controller with Built-in Bluetooth and Lithium Battery Low Temperature Protection Function
30A MPPT Solar Charge Controller 12V/24V Negative Grounded Controller with Built-in Bluetooth and Lithium Battery Low Temperature Protection Function Built-in Bluetooth module, you can download the ‘’ChargePro 2.0'' (new version) or the "PVChargePro'' (old version) app for remote monitoring that keeps 300 days of historical data. PS: the app of android version needs to turn on location and Bluetooth to connect. 20A solar controller is equipped with an LCD screen and LED fault indicators, which can check device operating data and modify controller parameters. 20A MPPT negative grounded controller offers overcharging/over-discharging/overload/overheat/short circuit/reverse protection and Lithium battery low-temperature protection. The maximum degree avoids the damage due to system fault or installation error. The BMS of low temp protection for Li battery automatically identifies low temperature, stops charging Li battery, and protects its life. This function can be switched on and off