1. Adopt 32-bit high-speed main control chip. 2. Large screen LCD display, charge and discharge parameters are adjustable. 3. Complete multi-stage PWM charging management. 4. Built-in reverse polarity protection, open circuit protection, high temperature protection, all self-recovering, no damage to the controller. 5. Install the controller as close to the battery as possible to avoid voltage drop caused by too long wires and affect normal voltage judgment.