A friend of mine had a folding battery charger that made that thing look safe. It consisted of a two-wire line cord and plug, two diodes, a capacitor, and a set of jumper cables, all connected by bits of stranded wire. No chassis or case. He kept it in a bag and laid it out on the ground when he used it.
You mean the charger my buddy made? I wouldn't apply the word "manufactured" to it (or to the device at the top of this thread). I don't think I adequately described my buddy's device. There was *no insulation* on any of the connections. It *had* to be spread out carefully to work: otherwise it would have caught fire. I *think* that he used a polarized plug and made sure that the negative terminal connected to the neutral, but I'm not sure. I never used it and stayed well clear when he was.
That sounds like a good plan , John. Unfortunately, I have seen similar contraptions. Best to back away quickly when you meet one.
