Thanks Cor! Funny, I hadn’t even considered asking for a warranty. Not the advice I was expecting but excellent!
The seller says it is unused equipment but I always like to double check. Thank you for the help. > On 29 Jan 2018, at 21:23, Cor van de Water via EV <[email protected]> wrote: > > Matthew, > In my order of preference: > 1- buy from someone you trust (and others vouch for if you have little > experience with them) > 2- get a written warranty > 3- consider the money lost in case the quality is not as advertised. > > You may be able to do some crude tests such as guesstimate internal > resistance of the cells by loading them with a 100 Amp load and measuring > drop, > but more important is the remaining capacity of the weakest cell and it is > not likely you can determine that from 36 cells in an hour or two. > > It may be possible to wire up the controller to a power source and make the > motor spin, which would tell you about obvious damage to bearings or balance, > but it is not likely you can easily test it to the limits that it will see on > a freeway doing redline, so again you will find out later if the motor is as > good as advertised. > > Testing the controller beyond the digital interface that you are already > going to access with your program is the same as I wrote above. > > One of the best ways to find out history is to know where the kit came from, > so you can ask the previous owner about his use and experience with it. > Success and I hope this helps, > Cor. > > -----Original Message----- > From: EV [mailto:[email protected]] On Behalf Of Matthew Quitter via > EV > Sent: Monday, January 29, 2018 1:13 PM > To: [email protected] > Cc: Matthew Quitter > Subject: [EVDL] Tests for second hand purchase > > Hi guys, > > I’m off to look at, with an aim to purchase, a bunch of second hand kit: An > AC-50, Curtis 1238 and 36 160Ah Thundersky. > > They’re not installed in anything. I wont have the time to rig the whole kit > up to bench test. > > Has anyone got any suggestions for what tests can be done on a motor and > batteries, within an hour or two, to check their condition? > > I can easily bring an RC charger and voltmeter with me. > I also have the Curtis 1314 software on a PC and can use to look at the 1238. > > Is there something that can be used as a suitable test load for the cells? > > What do you guys do when buying second hand EV parts with an unknown history? > > Thank you! > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20180129/8555c748/attachment.html> > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA) > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA) > _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
