Look at the appearance refers to the appearance, workmanship, size and process of lithium battery. Check whether the seam width of the shell is not wide, whether there are burrs and oil stains, and whether it feels good. Advanced processes feel very comfortable. Through grinding, the rubber oil polishing materials feel good and have strong insulation function together.
2. See if the capacity is clearly marked
Lithium batteries without clearly marked capacity are likely to be waste batteries assembled from scratch with inferior battery cells or recovered battery cells. The market is full of many cheap lithium batteries, which are made by recovering battery cells or dismantling battery cells. Although the price is cheap, it has short service life and unstable quality. Careless use may damage the equipment and even explode.
3. Look at the maintenance circuit
The characteristics of lithium battery determine that lithium battery must be equipped with maintenance board to avoid overcharge, over discharge and short circuit of lithium battery. Lithium battery without maintenance board will have the risk of deformation, liquid leakage and explosion. Under the fierce price competition, each battery packaging factory seeks a lower price maintenance circuit, perhaps omitting this device, making the market full of lithium batteries with explosion risk. Of course, in fact, consumers can't tell whether there is a maintenance circuit board from the appearance, so it's best to choose a reputable merchant to buy it.
4. Look at the brand
There are many brands of lithium batteries, but the quality is difficult to see from the appearance. In this case, we should do more homework and check the manufacturer's materials online before selecting. Generally speaking, professional manufacturers are more reliable than small workshops, and manufacturers with a long working time are more trustworthy than manufacturers who have just entered the field.
