#H1

Help: the area around the weld turns black, with a ring of burn marks too. Is the gear too high, or was the nickel strip not pressed flat? 0.15 nickel-plated on the H1, I'm using gear 45. It tears off when I give it a pull, so I don't feel good about putting it in a pack. Could any old hands point me in the right direction? Thanks!

Three 18650s plus an e-bike headlight, with a water pipe for the housing. Welded the nickel strip with the H1 — tiny little thing, handles 0.12 strip with zero effort. Switched it on outside at night and the neighbors thought someone had left their car headlights on. Hahahaha. Pic 2 shows the internal wiring, for anyone who wants to copy my homework.

The H1 is the handiest little tool I've ever used: handheld, rechargeable, fits in a pocket. The cell in the shaver had swollen, so I put in a new one, two welds, put it back together and it buzzed to life — Grandpa's shaver, ten years old, lives again. The joy of these little fixes — if you know, you know.