Sorry to hear that. Thankfully such things are rare but your right to share it as each year we all have more and more electrical devices with batteries in our motorhomes. In mine at any one time I might have two laptops charging, a couple of E cig batteries, camera batteries etc and I do wonder how safe some of these chargers etc are especially the cheap ones. I have a golden rule though in that I never ever leave anything plugged in and charging in the van if I am not in it, I even unplug the TV and switch off the satellite dish at night. I had E cig chargers burn out twice, once at home and one in the van. You can usually tell when they are about to burst into flames from the smell but not if your sat outside or down the pub.