Because many smart phone batteries are not durable enough, many users would like to select a small partner - power bank . USB power bank enjoys good portability, thus you can charge your phone anytime and anywhere.That’s really very convenient. However, charging function is not the only criterion when choosing a power charger.
In the market, there are a lot of brand power bank, meaning the quality varies.When there is demand there is market.Many consumers prefer lowest-price power bank rather than high-quality portable phone charger. In fact, the reason why the power bank can be sold in such low price is to save costs rather than giving up profit. Some power bank manufacturers even use inferior battery chip and power bank cases.Even more, there is no safe-protection circuit in it. In common, this kind of power bank can be used normally. But once it’s fallen down to the floor it is broken; sometimes even threaten our personal safety. All in all , it is necessary to make clear which power bank brand is good.
As for me, I have buy several WST brand power bank. WST were established in 2 000, covering an area of 15 thousand square meters, and hundreds of staffs focus on developing mobile batteries, designing for techniques, quality controlling and production. WST have the advanced examine equipment, product technique and the perfect quality protect system.For more details,please click the website :