mammoth wrote:

mine charges with a power bank. i took it camping with an Anker 10,000mAh and an Aukey 15,000mAh and it charged OK on both.

I think they may be referring to that it can be used to charge other items, used as power bank

Reverse charging capability: With the Reverse Charging (RC) adapter, the Eleaf Invoke will convert the 510 connection into a USB output for power bank mode, providing power to your cell phone or other e-cig device.

I wouldn't use to charge phone or other items personally but could come in handy I guess in an emergency

Need to buy SKU 6962200 to use as power bank though

Authentic Eleaf Pico Dual Avatar Reverse Charging Adapter