Review on BINGENUO 11000mAh Mini Battery Spot Welder: LCD Screen, 80 Gears - Portable Handheld DIY Spot Welding Machine by Andy Kucrud

Purchased Bingenuo 1100mAh based on reviews. I have the 1st and it won't turn on. I connected the charger and the battery showed a full charge. Let it charge for an hour. When trying to turn on the device, a low battery message appeared even though it was still connected to the charger. Came back and Revain sent me another within 2 days. I turned it on to find it DOA. Charged for 4 hours and got exactly the same result as before. Returned for a full refund. I'm still looking for spot welding that works.