With the rapid improvement of lithium battery technology, the cost of lithium batteries continues to decline. The advantages of higher energy density, lighter weight, less pollution, and longer service life make lithium batteries more and more attention in the field of electric bicycles. At present, various brands of lithium batteries on the market are mixed, and it is difficult to distinguish the good from the bad. How to choose a lithium battery for the new national standard has become an urgent matter for dealers and consumers!
  1. Check the appearance and packaging
The quality of a battery can be judged first from its appearance and packaging. A product that cannot even handle the details on the packaging is definitely not a professional product. Appearance can help us filter out some inferior products.(Home battery storage without solar)
  1. Compare the weight
The weight of a lithium battery is proportional to its capacity. If it is a polymer lithium battery, if the weight difference is too large, the capacity will definitely be insufficient, but there are differences in the capacity of some batteries themselves. In addition, you can also perceive from the outer packaging whether the weight of the battery is relatively heavy, if it is heavy, it is biased towards high-quality lithium batteries.
  1. Test internal resistance and maximum current
In fact, the fastest test method to judge the performance of lithium batteries is to test the internal resistance and the maximum discharge current. A good quality lithium battery has a very small internal resistance and a large maximum discharge current. Using a multimeter with a range of 20A, directly short-circuit the two electrodes of the lithium battery, the current should generally be around 10A, or even higher, and it can be maintained for a period of time. A relatively stable battery is a good battery.(Solar Batteries for Home)
  1. Detection of live work
During the charging process of the lithium battery, if the two poles of the battery do not become hot after continuous discharge for about 10 minutes, it proves that the battery protection board system is complete. Generally, the quality of lithium batteries with high-quality protection boards is better than that of ordinary lithium batteries. Five, look at the battery The most important component of a battery is undoubtedly its cells. At present, most of the batteries used in the market are soft-packed cells and 18650 cells, which are also the more common lithium-ion battery-packed cell materials. First check whether the batteries are brand new, because there are some bad small workshops in the market that use used batteries to make lithium batteries. Soft-packed lithium battery, also known as polymer battery, is a kind of battery with a soft-packed electrolyte in the form of gel. It can be made into various shapes, and the battery has high safety and will not explode. More details:https://www.aimeno.com/