ning
Elite Member
I'd be concerned about charging multiple cheap Li-ion batteries in a confined space at the same time.
Tesla does this, but they very closely monitor temperature and charge issues... and they still catch fire, and nobody can put the fire out until it's done.
Personally, I wouldn't use these basic cheap batteries; I realize you already have them, but I honestly don't think it's safe to gang them up.
If you can get LiFePO4 batteries it would be an interesting and safer project (Li-ion batteries have their own oxidizer, while LiFePO4 rely on environmental (air) oxygen to burn and so you can actually smother a LiFePO4 fire).
Tesla does this, but they very closely monitor temperature and charge issues... and they still catch fire, and nobody can put the fire out until it's done.
Personally, I wouldn't use these basic cheap batteries; I realize you already have them, but I honestly don't think it's safe to gang them up.
If you can get LiFePO4 batteries it would be an interesting and safer project (Li-ion batteries have their own oxidizer, while LiFePO4 rely on environmental (air) oxygen to burn and so you can actually smother a LiFePO4 fire).