What is the reason why lithium polymer batteries can quickly replace lead-acid batteries?

In recent years, the market for automotive emergency starting power supplies made of lithium polymer batteries has grown rapidly. This type of battery is light in weight and compact in size. It can be held in one hand for easy carrying. It also integrates an air pump function, as well as lighting functions such as flashing, SOS signal lights, and LED lights. It can also be used as a power bank to power various electronic products, making the automotive emergency starting power supply a very practical product.

In the past, automotive emergency starting power supply batteries often used lead-acid batteries. So what is the reason why lithium polymer batteries can quickly replace lead-acid batteries and quickly popularize automotive emergency starting power supplies?

First of all, lithium polymer batteries have significant advantages in energy density and volume. The energy density of lithium polymer batteries is 1~2 times higher than that of lead-acid batteries, and they can store more electricity in a smaller volume. Automotive emergency starting power supplies using lithium polymer batteries will be lighter and more compact, which is convenient for users to use and store in the car on a daily basis, and can even be used as a large power bank. This energy density advantage can not only improve the portability of automotive emergency starting power supplies, but also save manufacturers' production and transportation costs.

Secondly, lithium polymer batteries have significant advantages in storage, charge and discharge performance and life. The self-discharge rate of lithium polymer batteries is 0.59%~3%/month, which is less than 10~20%/month of lead-acid batteries. It can also be developed with a fast charging function of more than 1C, which can be quickly recharged and reused in emergency situations. It is well known that the life of lithium polymer batteries is also much longer than that of lead-acid batteries.

Thanks to the use of lithium polymer batteries, the car starting power supply has reduced size and weight, and has design redundancy to integrate more practical functions, such as air pumps, LED lighting, USB charging, etc., to meet more emergency or daily use needs of users.