After talking about the charging circuit of the lithium battery, let’s talk about its discharging circuit. Charging is to absorb electrical energy from the outside world, and discharge is to provide electrical energy to the outside world (load), which is the mission of the battery. The discharge process of lithium batteries is actually equivalent to the discharge process of capacitors. Both ends of the capacitor are connected with a resistive load to form a simple working loop. If the outside world does not interfere, the power stored in the capacitor will be consumed until the power is zero.