Review on 🔌 Portable Handheld DIY Spot Welding Tool with USB Rechargeability - Mini Size Lithium Battery Spot Welding Machine for 18650, 4 Gear Adjustable Welding Machine Set with Welding Pen by Kevin Pirlet

I ordered one of these blocks because I liked the size. I didn't realize at the time that welding was so merciless. I charged it for about 4 hours (the battery indicator was all the way up). At first I tried 0.15 mm thick nickel strips, but without success. I then ordered 0.10mm strips, no matter what strips you use, this thing won't let the strips "stick" to the batteries. I think these other reviews are fake, it really sucks. I checked the battery output voltage (4.2V), so it's not just a weaker battery. All mosfets have been tested for damage and cold soldering, it just sucks.