The simplest way to get a charger for lithium batteries, laptops and scooters

This type of smart truck contains overload sensors and shorts. The overvoltage pressure on the batteries can be reduced by placing a 12-volt flashlight to absorb the excess voltage. Lithium-ion batteries that contain BMS can be charged, laptop batteries are charged, and scooter batteries can also be charged by adding another truck. 21 volts in a row. This is a lot of respect and appreciation