1. Avoid the charging current of the transition charging high -energy battery is twice that of ordinary batteries. It can be charged with a large current, which can overflow the battery in a limited time. When the single voltage of the lithium battery solar street lamp battery reaches 2.25V and the extreme voltage is 2.40V, if you still use a large current charging, the battery is easy to lose water. Therefore, when the battery is required to reach the setting voltage of the settings, it can automatically convert into a trickle (small current) charging to prevent the control voltage accuracy of the control over charging.

2. Over -discharge protection Battery's operating life in different discharge depth is different. After the battery is excessively deep discharge, permanent damage will be formed. In order to ensure the use of batteries, deep discharge should be avoided. When the battery voltage drops to the discharge point, the load should be blocked in time to stop the lighting. The discharge cut -off voltage should not be too low, which is about 1.80-1.85V for single batteries. After the battery is intermittently discharged, its voltage will gradually rise, and finally it can reach about 2.2V. Once the protective circuit is moved, it is necessary to ensure that the battery cannot automatically restore discharge before charging from the beginning.

3. Temperature compensation battery voltage control point is changed with the ambient temperature, so the lithium battery solar street light system should have a base voltage controlled by temperature. When the temperature of the battery does not require temperature compensation between T1 = 15 ° C and T2 = 35 ° C, but when the temperature is not in this interval, the demand is determined by the formula (1) in the type of floating charging voltage UF = UFO+(T-T0) C. The voltage and temperature value of the benchmark point and T0 are the voltage temperature coefficient.