Ep. 35 | How handy is carrying 220V mains power outdoors? A homemade multi-function portable power station that can cook rice and run a hot pot on its own battery

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

Ep. 41 | Home speakers built from car speakers — surprisingly good? Turning car audio into a home stereo that sounds this good

Ep. 45 | An adjustable power supply with high-end features at rock-bottom cost? Building a portable, precise, digitally controlled adjustable supply from simple materials at the lowest cost — the result is a surprise

Ep. 36 | A Bluetooth speaker bought for under ¥1 sounds amazing after the mod! A junkyard speaker turned into a wireless Bluetooth speaker — the result is a real surprise

Ep. 43 | A homemade electric grass trimmer? A simple electric trimmer built at home from scrap, and it works really well

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

Building a 48V e-bike battery from 78 × 18650 cells

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

Fixing a fan’s laptop battery that died in storage

Build a 21700 pack in one video — long FPV range

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

Fixing a dead laptop battery for a follower

Episode 732

Welder at gear 60, welding 0.05 copper + 0.12 nickel-plated steel strip — the results

A must for battery welding: a solid weld in 1 second, plus how to stack the sale discounts