3 Point Precautions When Replacing Solar Power Street Light Battery

Recently, there are frequent customer consultations. What should I do if the battery is broken after installing solar power street lights for more than four years? Solar street lights used gel batteries or lead-acid batteries in the past. Now the solar powered street lamps are not on, or the lighting hours has become shorter, how to repair them? Can lead-acid batteries be replaced with lithium batteries? Can the gel battery be replaced with a lithium battery? How much does it cost to replace the battery? The after-sales problem of solar power street lights has always been a problem that consumers are more concerned about. When the street lamp battery has quality problems and needs to be replaced, what should we pay attention to?

1. Types of solar power street light batteries

Commonly used batteries for solar power street lights are gel batteries, lead-acid batteries, ternary lithium batteries and lithium iron phosphate batteries. Which battery to use depends on the use environment and customer needs to decide.

The price of lead-acid battery is low, the battery is liquid, suitable for low-temperature high-rate discharge; sealed and maintenance-free; but attention should be paid to prevent lead-acid pollution, and it is too heavy. Now the country advocates environmental protection and will be phased out.

The colloidal battery has strong low temperature resistance and is suitable for relatively severe cold areas. It has strong cold resistance. Its working energy efficiency is much better than that of liquid batteries under 0-15 degrees Celsius. Its heat preservation performance is excellent. If you live in a place which has low temperature in winter, you can choose gel batteries.

Lithium batteries are divided into ternary lithium batteries and lithium iron phosphate batteries. Lithium iron phosphate batteries and ternary lithium batteries use different materials. Lithium iron phosphate is a 3.2V voltage platform, and its cycle life can reach more than 2000 times. The ternary lithium battery is a 3.6V voltage platform with a cycle life of 500-1000 times. The high temperature performance of lithium iron phosphate battery is good, and the low temperature performance of ternary lithium battery is good. In terms of safety, lithium iron phosphate batteries are better. In the case of the same power, the price of lithium iron phosphate batteries is slightly higher than that of ternary lithium batteries. Lithium batteries can theoretically reach a depth of discharge of 100%, which means that we will reduce the capacity of batteries. High-performance solar street lamps are gradually using lithium iron phosphate batteries.

2. There are several types of battery voltages for solar power street lights

The operating voltage of the controller is divided into 12V or 24V, and you need to pay attention to its configuration voltage when replacing the battery. Mismatching will cause damage to the controller or light source, or even damage the battery, causing unnecessary economic losses.

3. Avoid mixing different types of batteries

If the lithium battery and the gel battery are mixed, we need to pay attention to the difference of the controller. During the day, solar photovoltaic modules charge the lithium battery, which can be fully charged in 4-5 hours under normal circumstances. At night, the controller will control the lithium battery to power the street lights. The controllers matched by different batteries are different, so if a different type of battery is replaced, the controller must be replaced together. The best way is to find a manufacturer of solar power street lights to buy a new battery, the manufacturer will generally be responsible for after-sales. The manufacturer’s technicians guarantee the quality of installation and convenient maintenance.

The installation method of the solar power street light lithium battery is relatively simple, and the solar street light manufacturer will be responsible for the installation. It is recommended that customers who purchase solar powered street lights with lithium batteries do not install them by themselves. Find a professional street lamp manufacturer to install, so as to avoid that manufacturer is not responsible for after-sales service after a failure, causing unnecessary economic losses.