The design of the solar street light how to prolong the battery solar street lamps

1, how to prolong the life of the battery solar street lamps to prevent overcharge battery life and performance of the solar street lamps is closely related to the battery inside the heat accumulation, and the battery internal heat source is mainly to electrochemical reaction to the internal power loss, can be a simple

how to extend the life of the battery solar street lamps

1, prevent excessive charging

the life of the battery solar street lamps and performance is closely related to the internal accumulation of the heat generated by the battery, battery internal heat source mainly comes from the internal power loss of the electrochemical reaction, so the product of charging voltage and charging current can simply look. Oxygen compound in the reaction, the floating charge current will increase and produce more heat. In the constant voltage charging and float charging current will increase with the rising of temperature, so as to further raise the temperature. Thermal runaway control valve seal is a kind of special phenomenon caused by the cell structure. Thermal runaway often leads to serious harm, such as battery fluid loss and casing damage. Drum belly, for example, serious dead batteries. In order to prevent excessive charging, charging voltage value provided should be in strict accordance with the manufacturer's instructions. Can be combined set current power supply and realize the intelligent management. It should be noted that, first of all, it should be set up correctly, secondly, unauthorized personnel can't make any change.

2, prevent charging less than

in contrast to overcharge, under charge is mainly caused by charging voltage setting is too low or too low. Or there is something wrong with the frame system.

3, prevent excessive

discharge depth and designed for battery charge and discharge cycles ( The service life) Are closely related. For example, when the discharge depth is 5%, cycles of 10000, when the discharge depth is 50%, cycle number only about 800. Serious over discharge will cause the battery to the best state is not enabled, or even scrapped. For different discharge rate, the discharge time and termination voltage is different, and release the effective capacity is different, and influenced by environmental temperature. Listed here are no longer the battery specifications given in the list of different manufacturers and related curves. Attention must be paid to the maintenance personnel, and in strict accordance with the relevant data should be set to the monitoring unit. Don't allow change it casually. At present, the bracket design of power supply manufacturers. Do you have a battery power function, when the solar street light that the battery discharge to set the termination voltage, the battery discharge automatically cut off the circuit by monitoring the instruction. Some manufacturers believe that even when the monitor unit (for some reason Depends on its working power supply) To detect the battery terminal voltage or failing to issue commands, the other device will be forced to cut off the circuit. Maintenance personnel, therefore, should also pay attention to when checking the reliability of the hardware circuit, and for inspection and maintenance.

4, control temperature

when the battery temperature, electrolyte activity, battery internal resistance is reduced, float charging flow increases, the corrosion cause conductive element increases, shorten service life. On the contrary, electrolyte activity is abate, the battery internal resistance increases, the battery discharge capacity of load. Therefore, monitoring the temperature of the battery solar street lamps, control and maintain the environment temperature is very necessary. At the same time, the charging voltage temperature compensation must be conducted, in order to avoid excessive charging at high temperature and at low temperature under charge. The vast majority of the use of VRLA battery place to control the environmental temperature 25 degrees or so. Accelerated life tests show that if the environment temperature rises 10 degrees, do not adjust the charging voltage, the service life of battery solar street lamps will shorten the half.

5, timely replace defective batteries

because of technical differences of each monomer, long-term floating charge could gradually increase & lsquo backward as a result, monitoring unit will have regular balanced battery management functions, in order to activate the backward monomer and make them no longer lag behind. However, they often lag behind, and ultimately may be failure batteries. We can use a variety of methods to determine whether it terminally ill, such as capacity test alone or online testing its internal resistance. The key is to replace defective batteries in time, for the battery solar street lamps of availability and even the whole life of battery is very important.

6. Suggested that the capacity of the battery pack on a regular basis test and discharge test. Capacity test physical examination for the battery pack. Of course, a lot of work, but considering the need and possibility, when conditions permit, suggested that sampling test.