Lead carbon offers better partial state-of-charge performance, more cycles, and higher efficiency: Replacing the active material of the negative plate by a lead carbon composite potentially reduces sulfation and improves charge acceptance of the negative plate. The advantages of lead carbon therefore are:
Less sulfation in case of partial state-of-charge operation.
Lower charge voltage and therefore higher efficiency and less corrosion of the positive plate.
And the overall result is improved cycle life.
Tests have shown that Victron lead carbon batteries withstand at least five hundred 100% DoD cycles. The tests consist of a daily discharge to 10,8V with I = 0.2C₂₀, followed by approximately two hours rest in discharged condition, and then a recharge with I = 0.2C₂₀.
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