Posted by a reviewer on Amazon

Without sunlight it will charge my phone three times

Posted by a reviewer on Amazon

I tried to put it inside a window without direct sunlight it still charges

Posted by a reviewer on Amazon

I always grab it if i know we are going to be on the go all day and its my back up when my phone goes dead

Posted by a reviewer on Amazon

Charging the battery the battery can be charged two ways

Posted by a reviewer on Amazon

That should sound like a trickle charge to those of us that kind of need a usbc fast charge for our devices but solar power technology is inherently inefficient

Posted by a reviewer on Amazon

Charging the device there are two blue usb2 powers and a usbc port on the bottom of the battery section ready for you to charge things

Posted by a reviewer on Amazon

Can charge the powerbank by solar panels and powerbank can charge the phone

Posted by a reviewer on Amazon

However none of them can really be charged vs