for the pass two years i have been charging my lipos on my ceramic floor. Been thinking about it recently. Not the safest thing. I never had a battery puff on me or anything But you never know. Decided to get some 14awg wire to extend the main leads of my charger. Im going to double the balance extenders. Also ordered another ammo box. The ideal way to do it would be to make some holes on the sides. I don't have the tools right now for that so im just going to leave the ammo box unclamped and my wires will slide trough the opening. Not perfect but better than charging on bare floor. The length and gauge of the main leads doer matter too much right? I wasnt able find 12AWG so i bought 14AWG.