DIY Backup Power Bank: Will It Actually Work? Find Out!

I bought a powerbank on Ebay and thought I'd try it to see if it's good. I had some extra 18650 batteries so I wanted to try to make a backup power.

[@pokwa906]

i have one of this.
works well for me.
at least almost a year now.
sure i tested and checked before closing when i saw the isn't any screw at lid.
let it discharge and charge without closing the lid for 2 days.
now it is my main power backup.
im using 3600mAh each.
charging from empty took almost 24 hour to full using usb c 45 watt charger.

[@vvorldnewsmedia]

if you would just put a charger to it for 1 minor so it would have worked

[@WilhoDIY]

I did use it on the charger but it didn't fit in the video. when it was on the charger none of the lights or anything else worked😅

[@suryapatnaik5720]

Standard chinese product.

[@anssi8694]

Money well spend?

[@WilhoDIY]

Of course, you must have noticed in the video that I was very happy!

[@yellowest_ball]

Yeah bro... most cheap things are not worth it at all. Better to always look up complete long reviews before buying a cheap anything. If you can't find a review on it, stay away from that shit!