Battery Capacity
explanation why you can transfer the capacity of external batteries 1:1 to the integrated battery of the smartphone: The charging
and discharging of a battery produced by the internal cell resistance heat. I.e. part of the energy is converted into heat.
Therefore, a fully charged battery is only about 60~70% of its capacity back!
Shipment
Mostly by Courier like UPS fedex. We have our experienced forwarder,safe to send the power banks. And we don’t accept freight
collected, because battery products can’t sent through direct DHL or UPS or FEDEX.
Samples time
1 ~ 3 days (1 day extra for logo)