How do you charge your batteries? Do you set them in an ammo box? Cynder block? Wood countertop?
Turn on charger. Plug in the pack to cycle first half. Wait until finished. Check that full. Swap to charge second half. Wait until finished. Check that full. Doing slow charge and always at 4.2V should safe me from most possible mistakes that can blow a LiPo.
Wood countertop, no ammo box. Fire alarm right above the heli.
I know best is to charge in an ammo box but the pack is built deep in my heli and I don't have space for an ammo box the size of my heli.
The pack is deep because that's the only way to get the right COG.