1. Check the appearance packaging

First, the packaging and appearance of lithium battery products can be identified. Although general products look deceptive, you can also filter out some inferior products by their appearance.

2. Compare the weight of components

The components of lithium-ion batteries are proportional to the capacity. If the components are too different, the capacity will be insufficient.

3. Test internal resistance and maximum current

In fact, the fastest way to test the performance of lithium batteries is to test their internal resistance and maximum discharge current. High-quality lithium battery with small internal resistance and large maximum discharge current. Select the 20A range of the multimeter and directly short-circuit the two electrodes of the multimeter lithium battery. The current should generally be around 10A, or even higher, and it can last for a period of time. Relatively stable is a very good battery.

4. Test site work

If the lithium battery does not heat up at the point of continuous discharge for about 10 minutes during live operation, it means that the protection system of the battery is perfect. Generally, the quality of lithium batteries with high-quality protection plates is better than that of ordinary lithium batteries.

5. Look at the internal cells

Most of the cells used in lithium batteries are 18650 cells, which are commonly used materials for lithium battery packaging. The first thing to check is whether the battery is brand new, because there are some small factories on the market that use used batteries to make lithium-ion batteries. More than 15 years of focus on battery manufacturing technology, safe and stable, no risk of explosion, high cruising range, long-lasting power, high charging conversion rate, no heat, long life, and durability, it is a battery brand worth choosing.
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