Confident.
JD.com's standalone operation means that JD.com sources products from audited manufacturers and then sells them on the JD.com platform. Compared with Tmall, which only provides a platform for third-party merchants to sell themselves, products sold by JD.com are strictly reviewed and inspected by JD.com.
Desai Group was founded in 1983. Its main business is the research, development and sales of mercury-free alkaline manganese batteries, primary lithium batteries, zinc-air batteries, batteries nickel-metal hydride, lithium polymer batteries. , fuel cells and other types of batteries, battery materials, accessories and equipment. In March 2014, it was selected as one of Chinese Dream's 50 energy-saving and environmental protection companies.
Heng Lithium battery is not bad, practical and environmentally friendly, the qualityThe quality is also good and the price/quality ratio is very good. It is recommended to purchase it.
The Heng Lithium battery I used before is quite good. What I like the most is its USB charging function. It can charge laptops, cell phones, etc. when going out, but also at home. When 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, their capacity is 1.5-2 times that of nickel-metal hydride batteries of the same weight, and their taux self-discharge is very low.
In addition, lithium-ion batteries have almost no “memory effect” and do not contain toxic substances, which is also an important reason for their wide application. However, there are many used and reconditioned batteries available. For process reasons, the problem rate and failure rate remain high, making it difficult for the general public to distinguish. The system is bulky, heavy, has a short lifespan and can explode, which is a very fatal defect.