Lithium battery solar street lights are very complicated. Langlide Optoelectronics will give you the answer

With the development of solar street lights, 99.99999999% of manufacturers have done this. The main reason is that the competition is too fierce and the price is lower than the cost price. The solar panels of solar street lights can be fixed in size, so manufacturers cannot cut corners, unless some manufacturers use garbage sheets to produce solar panels, but they can't save much money. So now most manufacturers will not make a fuss about the solar panels, but mainly cut corners on the batteries.

The common way of cutting corners in Gel batteries is that time has passed and buyers have understood it. In the end, they directly ask the size and weight instead of asking the manufacturer how much capacity it has. Buyers thought that this would prevent manufacturers from cutting corners. There is a saying that goes, the devil is one foot high and the road is ten feet high. Many dishonest manufacturers pour cement into Gel batteries to make them heavier. Or use refurbished Gel batteries.

As solar street lights continue to develop, they are gradually changing from the previous colloid batteries to lithium batteries. At this time, the opportunity to make money has come. Many buyers have just come into contact with lithium batteries and do not understand them. Manufacturers use 20AH lithium batteries to pretend to be 80AH to customers, making huge profits. From 2014 to 2016, many manufacturers made millions or even tens of millions of dollars a year through lithium batteries. Here I can tell every buyer with legal responsibility that there is no lithium battery solar street light that does not cut corners. This trend has been formed, unless the country implements the same laws and regulations as batteries. At present, Langlide has obtained the registration and production license for lithium batteries. At present, the country has not set a production license to produce lithium battery packs. I think it will be set in the future.

Next, let me talk about how manufacturers make a fuss about lithium batteries. Since the development of lithium battery solar street lights has been 5 years, many buyers also know how to distinguish whether the manufacturers are cutting corners. The common method used by buyers is to count the cells in the lithium battery. Conventional manufacturers will use 3.7V2AH cells to assemble lithium batteries. Why use this specification of cells? Because the price, quality, and number of cycles of this specification of cells are relatively OK. If a 12V30AH lithium battery is assembled with a 3.7V2AH cell, then 45 cells are required. If a 12V40AH lithium battery is assembled with a 3.7V2AH cell, then 60 cells are required. The calculation method of how many cells are needed for how many AH is (when the cell is 3.7V2AH) 12V50AH battery, then use 50÷2*3=75 cells, if the cell is 3.7V1AH, 12V50AH battery uses 50÷1*3=150 cells. Now many buyers use the number of cells to calculate whether the battery capacity is sufficient, which is wrong. Conventional 12V30AH only has 45 cells, but I can also use 90 3.7V1AH cells to make it. When the time comes, tell the customer that my battery is 60AH. If you don’t believe it, you can count the cells. At this time, the customer will feel that the manufacturer has not cheated after counting, but in fact, the manufacturer has already cut corners. No matter how smart the buyer is, the manufacturer will have various ways to deceive you. In fact, it is not purely a matter of being deceived, because you are lowering the price, and the price you lower is lower than the manufacturer’s production cost. No one will do a business that loses money, and it would be strange if they don’t steal.

There is another point to remind all buyers. If this factory says that its street lamp lithium battery is made of lithium iron phosphate battery and is of higher quality than other manufacturers, then you can directly give up cooperating with this company. They are full of lies. Lithium iron phosphate batteries are impossible to be used in China. They are very expensive and there is no need to use them in China. If the domestic area is as hot as Africa and the Middle East, then lithium iron phosphate batteries must be used.

The price of solar lithium battery without cutting corners is between 11-13 yuan (including controller). Manufacturers that charge less than 11 yuan/AH are basically cutting corners, or the boss of this factory has a brain problem, and they only ship the product with a profit of less than 5%, and this profit is not enough to cover after-sales service. Haha.

Every industry has copyists without factories. In Yangzhou Gaoyou, many young people buy a 400,000 yuan car with a down payment of tens of thousands, and then set up a website to copy orders, so that they can look stylish. It's okay if you meet a good and responsible copyist, but if you meet an irresponsible one, he will just change the phone and leave when there is a problem. Please keep your eyes open, buyers.

I personally don't oppose copycats. People need to develop. When there is no platform, they slowly climb up by themselves, but people should be honest. The manufacturer's cost is 1,000, and some copycats directly quote 950. First, the market is messed up by you, and second, the manufacturers also cut corners to get orders.

There is no result without cause!

Author: Lang Lide-Song Xin

June 19, 2017