The wiring diagram of a Li-Ion battery pack usually starts with a series of protection circuits. These include a fuse, over-voltage protection, under-voltage protection, and temperature protection.
To properly wire a battery pack in series follow the illustration below. Some electric scooter, bike, and go kart batteries are wired in series and parallel to create a battery pack with a Voltage that is half the sum of all of the batteries in the pack combined.
The PCM is usually placed between the cells in a series configuration and is responsible for balancing the cells, controlling the charging and discharging rates, and monitoring the state-of-charge (SOC) of the battery. The Li-ion battery pack circuit diagram can be divided into two parts: the electrical circuit and the protection circuit.
Designing a simple battery pack and connecting it with a cost-effective protection circuit to make a robust battery pack that can be used to power RC cars, quadcopters, or other different gadgets running at 12VDC.
The most common way to wire electric scooter, bike, and go kart batteries is in series to create a battery pack with a Voltage that is the sum of all of the batteries in the pack combined. This type of wiring configuration is called connecting batteries in series or series wiring.
To make a battery pack, the first step is to know the nominal voltage of a cell. The cells selected by us have a nominal voltage of 3.7Volts while the charge voltage is 4.2V. So, in order to make a 12 V pack, we require 3 cells connected in series. The image of cells we used is shown below We are selecting a 3.7V battery with a capacity of 1200mAh.