How a battery charger works. A battery works by converting its stored chemical energy into electrical power. Once the electrolyte of the battery is used up, it needs to be recharged. ... For example, if a fully charged 4Ah battery is discharged at a 4-ampere rate, then it will take an hour to get fully charged.

How is battery charging and discharging?

Charging a battery reverses the chemical process that occurred during discharge. The sulphate and hydrogen ions basically switch places. The electrical energy used to charge a battery is converted back to chemical energy and stored inside the battery.

What are the 7 stages of battery charging?

The 7 stages are: Desulphation; Soft Start; Bulk; Absorption; Battery Test; Recondition and Float.