How to know the batteries and the bad? Mobile power batteries on the inside, do not open it is difficult to see. Currently mobile power batteries must have three: square aluminum (and your phone battery mobile power couples like magic bubble, but there is no protection board and packaging), 18650 cylindrical cells (cylindrical battery, the international standard) polymer batteries (one of the latest battery, commonly known as soft bag, the high price of mobile power couples customized gifts, IPHONE use is this). Some people say that the polymer is the best, I do not think a couple of mobile power, do you use in any place, at the right place with the right batteries is critical. Now when more than 10,000 mA mobile power generally are used in 18650. How to distinguish between good and bad PCB? This is good or bad score out of batteries is more difficult, and only a professional factory test equipment to test it out, mobile power PCB board on the market now, the conversion rate of over 80% are good. This is very ideal situation, sometimes moving the power to protect the batteries, the batteries in the output voltage is too low when it will be protected, cut off the output, we can not always put the entire mobile power batteries run out of power. Another situation is that the output voltage of the power supply of mobile phone charging voltage is below the requirement (the iPhone is 4.35V) mobile power couple molipow, will trigger the protection mechanism of mobile phones, such as the iPhone will prompt "Charging is not supported with this accessory "In this case the use of mobile power capacity will be reduced. Couples wholesale mobile power, mobile power couple, can be provided by the Shenzhen Municipal Shuo Shuo New Energy Co., Ltd. Shenzhen Shuo New Energy Co., Ltd. (www.molipow.com/page-about.html) strong, credible, in Shenzhen, Guangdong phone's battery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will be able to lead the Master into the brilliant and you work for a better future!