As a new product of solar street lights, lithium battery solar street lights have been hot in the past two years and need to be installed in place. Inner Mongolia is installed in the northeast, and Anhui is also installed in Hunan and Hubei. Prices vary. Some street lights are priced at 1,500 yuan. Some street lamps cost 2,000 yuan, and customers do not know what to choose.

Especially customers in Inner Mongolia or Northeast China asked why Guangya's lithium battery solar street lights are much more expensive than southern lithium battery solar street lights. The place can still use the automatic heating function. Customers don't believe it. As a result, a batch of low-priced products was installed. As a result, some problems arose during the winter. It was still early winter, and by the end of the winter, the entire army was basically wiped out. They are all broken and there is no way to fix them. This thing is a lot more expensive than buying a qualified product, and it's my own responsibility.

This involves a question, whether the solar street light lithium battery is resistant to low temperature and how many degrees below zero can it be used. Guangya tells you that generally speaking, lithium batteries can be used at about minus 30 degrees, but do not exceed minus 35 degrees. The problem with too low is that no matter how good the battery is, it cannot be discharged. The batteries that leave the factory in the south can only resist above zero and below zero. 10 degree problem. Obviously not suitable for use in cold places.

Of course, the price difference between minus 30 degrees and minus 10 degrees is too big. Negative 10 batteries can do 1ah within 10 yuan, and negative 30 batteries are at least 14 to 15 yuan. This is the third difference. If a street lamp is also 40ah, the low temperature resistance is 400 yuan, and the low temperature resistance is 600 yuan. Such a battery is 200 yuan worse, so the price is stuck.