This is a nice low-cost , dust-proof and water proof power bank that will re-charge your O-Pen AND NOW the GO-3 because we upgraded it to do wireless charging. It will also power your gps or cell phone) when you are outdoors. or if the grid goes down.

- Flash light has hi, low, and strobe funcions

- hand carry strap & carabiner included

Battery Capacity: 30,000 Mah

input: micro usb DC 5V 2A, Solar panel: DC 5V 200 mAh

output: 1 DC 5V 3A

Battery type: Li-polymer

Flashlight: 0.5 W * 2