Handmade 27,000,000 mAh power bank

A pocket-size power bank might offer 10,000 mAh of service. Then there's this: a DIY pile of power that brings 27,000,000 mAh to the table—and the table saw, if you need it—built by Handy Geng from parts.

It seems everyone else has a bigger power bank than mine. I'm not so happy with that.. So I made a 27,000,000-mAh portable charger power bank. Welcome to use my power bank to charge~