Lithiun Ion Battery Caution

I run a lot of electric RC cars. All lithium batties and I keep them in a ammo box for a reason... And in my garage.

my phone in an otter box has a old battery and every charger makes it go into thermal shutdown, hot as F when you take it out of its case.

There's a big safety difference between liFePO4 and RC/cell phone lithium ion or lithium polymer batteries.