Electric lithium battery will not choose? Try these five selected lithium electricity method

Compared to lithium batteries now mainstream ev lead-acid battery has a long service life, green environmental protection and other advantages, but relatively speaking, lithium batteries will be relatively expensive price, so, now that expensive, we must learn to choose, in order to avoid being cheated, summarizes several selected below the good method of lithium battery. 1, check the appearance and packaging can be from packaging and appearance to judge of lithium battery products. Although the general product appearance is deceptive, but also can filter out some bad products from the appearance. 2, watch batteries, first check whether batteries for the new products, because there are some bad small workshops on the market use used batteries production of lithium-ion batteries. Good batteries, higher safety, lithium batteries will have better quality. 3, in the process of testing work charged in lithium battery charged, about 10 minutes continuous discharge battery if not hot at the poles, battery protection board system perfect, general with high-quality lithium-ion battery protection board quality is better than ordinary lithium batteries. 4 or more weight with the weight of the lithium battery capacity is proportional to the, if they are lithium polymer battery, weight difference is too big, capacity is not for certain, but there are some differences between the size of the battery itself. In addition, from the outer packing perception about the battery weight is heavy, if the thick towards high quality lithium batteries at all. 5, test, internal resistance and the maximum current actually, the fastest lithium battery performance testing method is to test resistance and the maximum discharge current. Good quality lithium battery, internal resistance is very small, maximum discharge current is very large. Using a range of 20 multimeter, short directly connect the two electrodes of lithium-ion batteries, generally should be around 10 a current, or even higher, and can maintain for a period of time, relatively stable is good battery.