over charging
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There should be lights on the charger. Red and they are charging and when green comes on they are charged. There is a chip in the charger that cuts off when the batts are fully charged that can fail albeit rarely. Don't leave batts charging unattended.
Good Luck, Vapoor.
Good Luck, Vapoor.
Vapoor explained it perfectly. Most chargers SHOULD stop charging a battery once its full, or switch to a trickle charge, but it is possible for the chip to fail. Most stories you hear about batteries exploding or catching fire is bc the chip in the charger failed and continued to charge a battery that is already full. Once the light stays to a solid green color, its fully charged. I dont recommend leaving it plugged in on the charger for extended periods of time once the light turns green. Its better to be safe than sorry, and it will help the battery last longer.
What PV are you using? I also recommend not letting your batteries drain all the way. Throw them back on the charger when they have about 25% left. It will ensure the batteries arnt over-discharged and they will last longer
What PV are you using? I also recommend not letting your batteries drain all the way. Throw them back on the charger when they have about 25% left. It will ensure the batteries arnt over-discharged and they will last longer
The circuity in protected Li-ion batteries should prevent overcharging. However, you want to use a good charger and not rely on this last-ditch protection circuitry.
Beware of chargers that terminate charge at 4.2 VDC. Well-designed L-ion battery chargers will terminate at less than 4.2V, something like 4.14-4.17V is safe and sane. Good multi-stage chargers will be multistage and will terminate by switching off or to a float stage. If the charger terminates in a float stage it is best to remove the battery from the charger within a few hours after charging is completed. Good chargers not not necessarily expensive chargers.
Beware of chargers that terminate charge at 4.2 VDC. Well-designed L-ion battery chargers will terminate at less than 4.2V, something like 4.14-4.17V is safe and sane. Good multi-stage chargers will be multistage and will terminate by switching off or to a float stage. If the charger terminates in a float stage it is best to remove the battery from the charger within a few hours after charging is completed. Good chargers not not necessarily expensive chargers.
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