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Subject What is Three-Stage Charging?
Author Sascha Deri
What is Three-Stage Charging?

Multistage charging ensures batteries receive optimum charging, but with minimal wear and tear, regulating the voltage and current delivered to the batteries in three automatic stages:

Bulk: Replaces 70-80% of the battery’s state of charge at the fastest possible rate.
Absorption: Replenishes the remaining 20-30% of charge, bringing the battery to a full charge at a slow, safe rate.
Float: Voltage is reduced and held constant in order to prevent damage and keep batteries at a full charge.
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