What is the capacity of the mobile power?
There are two specific reasons: one is the large-capacity mobile power in the security aspects of the problem more easily, followed by large capacity mobile power in the portability will be greatly reduced.
Smart phone with the words, no need to choose too much capacity products.
So if you just give the smart phone backup power supply, it is recommended that you buy a capacity of 4000-5000 mA mobile power can be, those in the capacity of 8000 mA above the mobile power is actually more suitable for tablet PCs and other large battery equipment.