Whenever it's relevant, I will always remind people that lithium batteries are essentially little bombs.

They are tightly packed energy cells, and the only thing keeping them from causing serious harm or death, is quality of manufacturing, and quality of care once they're in the consumer's hand.

Never cheap out on anything power related.

Buying a cheap motherboard or buy cheap SSD's might mean your computer may break more easily, but buying a cheap power supply, means you might burn your house down - and the same logic applies to lithium batteries, and products that contain lithium batteries.

I work in waste processing, and we have daily fires because of these things. Fortunately, our fire supression works extremely well.

This month I ordered a sample of 30 mass produced lithium ion protection circuit boards straight from the factory. Every single one in the batch has failed testing. They don't lock the battery out at low voltages (where it becomes a bomb when next charged), they don't protect against over current (where it causes a fire), and no surprises at all the over voltage protection didn't work either. Only short circuit protection "worked" because it blew up the protection board so bad it didn't pass electricity through in anymore