Reviews: Can this pack do "pass-through" charging? Charging the battery while the battery charging connected devices. Left unattended all devices 100% charged.

Allfei: Unfortunately, it will not. My other smaller lmashi won't either. But they do turn off charging when the device is fully charged so you don't have to worry about over charging. In that sense you can charge and forget. ( Mar 13, 2017 16:9 )

Reviews: can many times can it charge a samsung s4

Allfei: about 4 times ( May 10, 2016 9:8 )

Reviews: It seems good.

Reviews: does it come with a battery

Allfei: this is a battery, it is rechargeable and reusable. ( Sep 21, 2015 15:26 )