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How to choose lithium iron phosphate battery

lithium iron phosphate battery_How to choose lithium iron phosphate battery?

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There are many kinds of lithium iron phosphate batteries on the market, and the quality is also uneven. If you do not choose a good lithium iron phosphate battery and buy a poor quality lithium iron phosphate battery, it will also be a harm to the later use. If you want to choose the quality For a good battery, see this article to teach you how to choose.

1. Check the appearance and packaging of the lithium battery

First of all, lithium iron phosphate battery products can be judged from the packaging and appearance. Although the appearance of general products is deceptive to a certain extent, some inferior products can also be screened out from the appearance.

2. Compare weight lithium iron phosphate battery

The weight of the lithium iron phosphate battery is proportional to the capacity. If it is a polymer lithium iron phosphate 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 iron phosphate batteries.

3. Test internal resistance and large current lithium iron phosphate battery

In fact, the test method to judge the fast performance of lithium iron phosphate battery is to test the internal resistance and large discharge current. A good quality lithium iron phosphate battery has a very small internal resistance and a large discharge current. Using a multimeter with a range of 20A, directly short-circuit the two electrodes of the lithium iron phosphate 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.

4. Test live work

During the charging operation of the lithium iron phosphate 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 iron phosphate batteries with high-quality protection boards is better than that of ordinary lithium iron phosphate batteries.

5. Look at the battery

Most of the cells used in lithium iron phosphate batteries are soft-packed cells and 18650 cells, which are also more common lithium iron phosphate battery pack cell materials. First check whether the batteries are brand new, because there are some bad small workshops in the market that use second-hand batteries to make lithium iron phosphate 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.

The above are the precautions for the selection of lithium iron phosphate batteries. When you choose lithium iron phosphate batteries, you can choose a good battery by paying attention to the above matters.


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