10A/20A/30A Boost MPPT Solar Controller 24V36V48V60V72V Mobile APP Smart Control10A 20A 30A Boost MPPT Solar Controller 24V36V48V 60V72V Solar Electric Vehicle Charging Mobile APP Safety Instructions: 1. This controller can charge 24V 36V 48V 60V 72V batteries. For first time installation and use, please set the lock battery voltage through the mobile APP. For example, if the battery is 48V, select the lock to charge the 48V battery. When the battery is out of power, it can automatically Copy the saved parameters and activate the