7
Charging Phases
Refer to the graphic on the next page.
1. Check the battery’s initial state, voltage, state of charging and state of health to ensure
the stability of the battery before charging.
2. Charge the battery with pulse current to breakdown the sulphates that have built up
over time in the aging battery to extend life.
3. Charge the battery with low current to prepare for the high-current charging.
4. Charge the battery with three stages of constant current that gradually rise to optimize
charging.
5. Charge the battery with preset current until it reaches 80%.
6. Trickle charge the battery until it reaches 90%.
7. Remain the voltage at preset value until the charging current drops to 12.5% of the
maximum value and keep charging the power to 95%.
8. Charge at 12.5% of the preset maximum current until the battery is charged to 100%.
9. Check if the voltage is lower than preset value. If it is turn back to step 8.
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