Quest for the shittiest battery charger continues. (schematic)

Inside a cheapo NiMh charger with schematic.

Are over-discharged lithium cells safe? (And how to test for damage.)

Inside a Vapex 8-way fast charger. (NiMh)

Charging NiMH cells - smart vs dumb chargers

Math Videos: How To Learn Basic Arithmetic Fast - Online Tutorial Lessons

Ni-Cd to Lithium Battery and Charger Conversion | NiCd / Ni-MH Battery Repair

How to use a multimeter like a pro! The Ultimate guide

battery charger circuit, measure current, measure temperature, measure voltage.

Noco GB30 failure autopsy.

Simple NiMH battery charger (with PCB files)

eBay trash USB charger 2023 - with schematic

Which "Lithium" AA Rechargeable Battery is Best? Let's find out!

Inside a common eBay lithium cell charger - with schematic

Duracell PowerCheck: A genius idea which didn't last that long

Inside some cheap lithium cell chargers. With schematic.

Cheap power pack with free lithium cells (USB or solar charging)

inside a cheap and very shitty USB battery charger.

What's inside Eneloop and LIDL NiMh cells (fire, apparently)

Scavenging rechargeable lithium cells from the roadside

Tiny Li-Ion Charger with no Chip. Schematic & how does it work.