Re: Failed Light
From what I have read most chargers either trickle charge or slightly discharge once the battery is fully charged. Trickle charging will over charge the battery causing damage. A slight discharge will most likely cause the charger to pump. So charge, discharge, charge, discharge over and over again. This also causes damage. Some chargers that have a slight discharge may just keep discharging running the battery down so when you really need it it does not work. It is possible to design a charger that will not damage batteries over time but it cost way more money to do so. So they don't do it. IMO a charger that would work correctly will only pump after the voltage has dropped down to about 3.8 volts. This way it would be weeks or months in the charge discharge charge cycle. So IMO it's best not to leave lights/batteries on a charger. Another thing to think about is the safety factor. Always monitor batteries when charging. The exception being you have a light/battery etc. that was designed to be left on the charger which many companies claim you can do but few actually work correctly.