Will the Truecharge charge an “over-discharged” battery that has been discharged to less than 10 V?
The TC10/hw, TC10tb, TC20i, TC20+, TC40i, and TC40+ will all proceed into bulk mode and attempt to charge at their respective bulk rates (10, 20, 40 amps) regardless of the state of the battery. The TC10 clip-lead, one bank, portable model will behave as above for battery voltages down to roughly 5Vdc. Below that, the charger will not go into bulk mode, but will instead continuously reset (the LED’s will cycle). This results in a small amount of pulsed current going into the battery. If left in this condition long enough, and if the battery accepts this pulsed charge to the point where the battery voltage rises above approximately 5Vdc, the charger will proceed into bulk mode at the full 10Adc. A battery with an extremely low voltage may be damaged, and may not accept the charge. In this case the charger will time-out of bulk charge after 8 hours, and it is likely the battery will need replacement.
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