From: EVDL Administrator via EV <ev@lists.evdl.org> >I have one of those "Watts Up" meters. It works nicely, within its >limitations. It's US made (!), and appears to be really well built. I use it >a fair bit. > >However, the specs claim a current capacity of 50 amps continuous and 100 >amps peak. I think that's wildly optimistic. The shunt is built in, and >you're right, the lead wires are only #14. I wouldn't use it at over 10-15 >amps continuous. Even at 15a, I keep a fan blowing on it.
I have one as well. I agree with David; it's well made and works as advertised. But indeed, it failed while continuously charging a battery at about 20-25 amps. An autopsy revealed that it burned open the tiny shunt, which then applied full voltage across the current sensing circuit, and blew out the electronics as well. -- Excellence does not require perfection. -- Henry James -- Lee A. Hart http://www.sunrise-ev.com/controllers.htm now includes the GE EV-1 _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
