What are the ways to choose high-quality lithium batteries

1. Check the appearance and packaging of a battery. First of all, you can judge from the appearance and packaging pioneers. A product that can't even do the details on the packaging is definitely not a professional product. The appearance can help us filter out some inferior products. 2. Comparison of weight The weight and capacity of lithium batteries are directly proportional. 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 size of the capacity of some batteries. In addition, you can also perceive whether the weight of the battery is relatively heavy from the outer packaging. If the weight is heavy, it is biased towards high-quality lithium batteries. 3. Detecting internal resistance and maximum current In fact, the fastest inspection method for judging the performance of lithium batteries is to detect internal resistance and maximum discharge current. A good quality lithium battery has very low internal resistance and a large maximum discharge current. Use a multimeter with a 20A range and directly short the two electrodes of the lithium battery. The current should generally be about 10A, or even higher, and it can be maintained for a period of time. A relatively stable battery is a good battery. 4. Test live work During the live working process of the lithium battery, continue to discharge for about 10 minutes if the battery poles are not hot, it proves that the battery protection board system is perfect. Generally, the quality of lithium batteries with high-quality protection boards is better than ordinary lithium batteries. 5. Look at the battery cell The most important part of a battery is undoubtedly its battery cell. At present, most of the batteries used in the market are soft-pack batteries and 18650 batteries, both of which are also common materials for lithium battery pack batteries. First check whether the batteries are brand new, because there are some bad small workshops on the market that use second-hand batteries to make lithium batteries. Soft-packed lithium batteries, also known as polymer batteries, are batteries with a gel-like soft-packed electrolyte that can be made into various shapes. The battery is safe and will not explode. The current electric vehicle batteries are basically 18650 batteries, which are mainly made of lithium iron phosphate, lithium manganate and ternary. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete.