Welltron’s WSC battery charger is compact and light-weighted. It is a 4-stage charger designed for all types of lead-acid batteries. The term 4-stage refers to the three charging stages along with the additional stage, equalization. The three stages include bulk, absorption, and float. In the bulk stage, the charger remains a constant current while the voltage increases. Around eighty percent of the battery capacity is recharged in this stage. In the absorption stage, the battery voltage mainta...