Anyone with a mech had a overheated battery yet? I'm sure there's a lot of us. I'm using Panasonic cgr18650ch batts, and one overheated the other day, really heating up very quickly, and I subsequently chucked that battery just to be safe. Anyway, I read in another thread, due to this panny being uninsulated at the negative end, the body of a mech mod can make contact with the uninsulated negative end, causing a continuous fire, therefore heating the battery up (This happened to me with a K100 and cgr18650ch batt). The suggestion was made that one should insert these Panasonic batts wrong way round in mech mods (and especially the Chi-You clone), with the pos end facing down, to avoid this issue. So, is this the way to go? Anyone with some electrical current experience can chime in here? While I'm waiting for my vape safe fuses, I dont want to waste any more batts, or worse burn my face off!