Class is in session, everyone — the ‘Whampoa Academy’ of the tool world

Can't fix it, but I'll build it — POV hand-made pack

Ep. 42 | Turning a storage box into a solar-charged outdoor power station? Build a fun, practical multi-function solar-charging outdoor power station from a plain storage box — so useful!

Bring 220V mains outdoors — DIY power station

An afterburner on a car turbo? Hardcore mod

Teaching you the 8-cell car jump starter

[T.O.P.] Getting into FPV on a budget — making money from it is easy; DIY long-range packs and power stations, AWithZ

A big power bank this easy? ~¥20 at home

DIY flashlight — 3×18650 + e-bike LED, under ¥20

Ep. 2 | Spot welder comparison — a home-built one off Xianyu vs a bought one! Money talks! The quality really is different

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

Unboxing and testing a small handheld spot welder — very practical and handy

Second version of my low-cost DIY soldering iron: upgraded to Li-ion power plus a printed shell, more convenient to use

Universal magnetic base — step-by-step

Ep. 30 | One video teaches you how to build a 21700 pack — never worry about long-range battery again

First-person, immersive — a day in the life of an appliance repairman

The ¥9.9 mini fan I bought last year stopped charging — repaired with one bigger cell, no more runtime anxiety! The same home battery welder as in the video is in my shop window

Lithium batteries, spot welder — I recommend this one, compact and powerful

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

Do you really have to hand-build a spot welder to hand-build Li-ion packs? Don’t take my detour — see what you make of this one

First-person immersive look at a day of repair work

A ¥25 ‘brushless’ handheld car vacuum bought online — opened up, it really is a brushless motor

AWithZ U3 welder — build your own 18650 pack, tutorial

Fixing a fan’s laptop battery that died in storage

0.2 copper straight onto a Jiashikai negative — I’m telling you, don’t try it! It just won’t hold…

Build a 21700 pack in one video — long FPV range

AWithZ high-power spot welder — welding lithium cells, handy and effective

AWithZ UF20B supercapacitor spot welder: small size, big power

This lesson is all detail for beginners — the chapter of the hand-built Li-ion course that keeps you from getting blown up, bro! Old hands, now it’s your turn to roast me

Building a 21700 pack with AWithZ — full workflow