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When the ‘absorption’ LED is lit on your MultiPlus-II 230V, it indicates that your charger is in the absorption charging phase.
Here’s the rundown on what this means:
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Absorption Phase: This is the second stage of the battery charging process. It kicks in after the bulk charging stage, (where the main aim was to get the battery up to around 70-80% of its full charge as quickly as possible).
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Purpose: The goal here is to safely complete the charging process. It allows the battery to reach 100% charge without causing overcharging or damage. This phase ensures all cells in the battery are equally charged.
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Charging Dynamics: During absorption charging, the charger maintains a constant voltage level that’s slightly lower than the maximum charge voltage of the battery. The current gradually decreases as the battery approaches full charge.
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Duration: This phase can last a bit longer, as it’s about topping off and equalizing the charge in the battery. The time it takes depends on the battery’s capacity and its state when the absorption phase began.
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Mains Voltage Role: The charger continues to utilize the AC mains voltage, converting it to the appropriate DC level for the battery.
When your charger is in absorption mode, it’s a good sign that your batteries are nearing full charge in a controlled and safe manner. It’s an essential step for the longevity and health of your batteries, ensuring they’re fully charged and ready for use.
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