Way back in September last year, I added a second genuine Leaperkim Veteran-450 5A charger to arrive with my Veteran Sherman order, to give myself the option to quick charge if necessary. When the wheel finally arrived in early November, I initially Only used one charger at a time to test that both were working correctly. I think it was most probably only the second time of using one of mine, again just with one on its own, whilst it was nearing 90+% charge I heard a loud "pop" - the charge cycle stopped and I quickly turned off the power supply and unplugged the power lead! When I had a sniff at the charger to see if I could detect the usual smell of burnt components there was obviously that tell-tale odour most definitely present!