1, battery depth of discharge cycles on the battery life of a great impact, it is because the deeper depth of discharge, the electrode expansion contraction the greater the positive electrode active material shedding more and thus lose their discharge characteristics, performance degradation, until the end of life. So, should try to avoid using the batteries depth of discharge, so that sufficient light put ground, the general situation should be done: battery to discharge a depth of 50% -70% of the best on one charge.
2, battery discharge to the termination voltage to continue to discharge (before discharge) would seriously impair the battery, it is because at this time can easily form a non-reversible sulfation, so that deterioration of charging ability to recover, or even beyond repair. Therefore, when used to prevent excessive battery discharge, “under-voltage protection” is a valid measure. “UV protection” measures are controlled by the electric vehicle controllers, but instruments and light electric vehicles such as electric power from controller, so electric locks, once started together on electricity, although the current is small, but If the long discharge, thinkpad r40 battery over-discharge occurs. Therefore, can not lock a long time, do not be turned off immediately.
3, the charge current should be less than or equal to the thinkpad r60 battery charge current can be acceptable, otherwise, over charging of excess current generated by electrolysis of water will consume liquid too quickly and cause serious gassing phenomenon, a long time charge will change very difficult, due to charge as much as possible to prevent the overcharge. Regular charger manufacturers to ensure that the battery does not overcharge.
4, under normal circumstances, the discharge depth of the larger battery life in a year or so, at 50% depth of discharge the battery life in a year and a half or so. Individual manufacturers to produce thinkpad t60 battery can be achieved two years.