Building a 32140 LiFePO4 battery

Building a 24V Li-ion battery from 16 × 32140 cells

Why does a 48V e-bike Li-ion battery have such short range?

Got another spot welder, the AWithZ UK1 portable Li-ion spot welder — unboxing and review! Plus my experience and thoughts on spot welders 🤗 If you’re into spot welders, come have a look

Beginner’s money-saving guide to hand-building lithium packs

Another AWithZ UK1 — unboxing & review

AWithZ portable Li-ion spot welder — building a power-tool battery pack with the AWithZ portable welder

Ep. 127 | Skip one meal and you can own a handheld spot welder — build your own packs at home

Re-celling a 48V Li-ion battery

Once you’ve mastered hand-building Li-ion packs you’ll never buy a power bank again — all the old power banks at home can be re-celled! Haha

DIY tools | A portable spot welder — niche but professional. I’ve been building a solar-lamp project lately and need to weld lithium packs for storage. I’d always used a soldering iron, but soldering lithium cells is slow and a safety risk, so I got a portable spot welder (AWithZ U3) and it works well. Compared with an iron, pulse spot welding avoids cold joints, the nickel strip sits tight, no hot iron is needed so there’s less risk of damaging the cell, and it’s very fast — one weld in 3 seconds, ideal for batch work. Spot welding was new to me, but it really is better suited to battery mods than conventional soldering