Heng Lithium battery is not bad, convenient and environmentally friendly, the quality is also good, and the price/performance ratio is very good. It is recommended to buy it.

The Heng Lithium battery I used before is quite good. What I like most is its USB charging function. Laptops, mobile phones, power banks, etc. can be charged with it. It is not only convenient when going out, but also at home. If used, 1 constant lithium battery = 800 ordinary batteries, and can be charged repeatedly. The battery is quite light and not as heavy as the original battery.

Ordinary lithium-ion batteries have the advantages of light weight, large capacity, no memory effect, and low price. Many digital devices now use lithium-ion batteries as power sources. The energy density of lithium-ion batteries is very high, its capacity is 1.5 to 2 times that of nickel-metal hydride batteries of the same weight, and it has a very low self-discharge rate.

In addition, lithium-ion batteries have almost no "memory effect" and do not contain toxic substances, which are also important reasons for its wide application. However, there are many used and refurbished batteries. Due to process reasons, the problem rate and failure rate remain high, making it difficult for the general public to distinguish. The system is large, heavy, has a short service life and may explode, which are very fatal shortcomings.