Charging: charging current is not large than 450mA charging cut-off voltage: each 4.20+/-0.05V; Discharging: Please use standard balance charger to charge the battery when it is the first time to use; Single battery voltage is not less than 11.1V; Continuous use five cycle after activation can be rest assured to use; When continuous use please check the battery voltage 3 batteries pack the battery voltage is not less than 8.4V 2 batteries pack is not less than 5.6V and single not less than 2.8V; Storage: Self discharge of lithium battery is higher than NI-MH battery; Long time storage will be easy to excessive discharge; single battery the voltage should be within 3.8~3.9V; Storage temperature: -20~35'C; Storage relative humidity: 45~85%; Note: Be sure to use dedicated li-ion battery charger to charge charging current is no more than 1C; Battery do not full electricity stored for a long time best storage voltage is 3.8V for single battery