Thanks Lee! I will give it a try. I have a digital voltmeter on my gauge pack so I can monitor.
Cheers Dan On Thu, Jan 19, 2017 at 12:05 PM, Lee Hart <leeah...@earthlink.net> wrote: > Dan Baker via EV wrote: > >> Hello EVDL group! >> I purchased a couple Sevcon 48V DC Battery Charger 622/42202 850W 17A >> chargers >> last year on ebay at a great price, for about $50 US each. They work >> great, they aren't fan cooled but have large heat sinks that one can put a >> fan on to keep them cool. I can't seem to find any manuals on them >> anymore- I remember finding something from Sevcon last year but that has >> all but disappeared from their site. Anyone happen to have a manual for >> these? I was also wondering if I could parallel the two of them on the >> same pack - effectively get 34 amps of charge. From what I read it could >> work or they could quickly go up in smoke, really don't want the latter >> :-) >> My pack is 4 x 12v 170 lead amp/hr batteries so they can take a steep >> charge. My snowpig has been running great, so good that demand has >> increased from helping others out with clearing their driveways that now >> exceeds my pack capacity. I even resorted to swapping the 600lb pack a >> couple weeks ago so I could do more clearing, couldn't wait 8 hours to get >> back out! >> > > Sevcon makes good stuff. I doubt that you can hurt a well-designed charger > by using two at once on the same battery. > > But, it might hurt the batteries. Chargers have some mechanism for > detecting when the battery is full, so they can cut back the charge rate or > turn off. With two chargers, you may get twice the finishing current; so it > might tend to overcharge. > > Or, it might be that as soon as one charger sees "full", it turns off. > That in turn triggers the other one to turn off. So they might wind up > under-charging. > > My advice would be to just try it. Watch what happens to the battery > voltage and current. If you are happy with what they do to your batteries, > go for it! :-) > > -- > Teaching children to program goes against the grain of modern education. > Just imagine the chaos if they learned to think logically, plan, create, > implement, test, and execute! > -- > Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20170119/5d1362f0/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
