My good luck with lipos just ran out 30minutes ago!
I was down in the basement loading the B50 with the JD850, heard a noise like something fell off the kitchen table... kept digging. Heard it again within a minute... went upstairs to see what's up? Small fire in the living room!
The glass jar with metal lid probably what I heard pop, contained most of the lipo explosion, but the glass jar still blew apart.
Grabbed an old coat & smothered the fire, immediately open front & back door, set up 24" fan at back door & cleared the smoke within 10 mins.
Cleaning up the mess, carpet is trashed... cut it out with my jack knife & pitched it out in the barrel.
That was a few month old higher end brand name lipo... how many times I have set the charger & LEFT the house?! Never again!
Charger goes to the shop, out in the middle of the cement floor, inside a metal box.
I was lucky!

DAYUM I was lucky!!!