Wholesale YB-637 7800mAh power bank

Wholesale YB-637 7800mAh power bank

Product description:

Product features:

• with 7800 Ma ultra large capacity lithium battery, can give the iPhone4 charging 4 times (depending on the actual situation.) ;

• 1A has high output, charging for mobile phone, tablet computer, digital cameras and other equipment, LED lighting, LED lighting for more than 390 hours.

• YB-637 charging overvoltage protection, discharge over-current protection, output over voltage protection, temperature control and protection of multiple protection, power conversion efficiency of 90% or more in general, using the AAA class electric core, from raw materials to process have reached the level of quality, safety, green energy product innovation.