Adrian, You suggest for example running 24V when not having the trailer and when mowing power is needed, to add the 24V of the trailer in series (hence, the shorting connector to bypass the absent trailer and rely solely on the tractor's own 24V pack? Note that balance is an issue (adding the trailer after using half the tractor's charge, then running the tractor's pack totally dead) so it needs some thought and how-to-use this setup and preferably a separate 24V charger for both tractor and trailer, but it can work well.
Cor van de Water Chief Scientist Proxim Wireless Corporation http://www.proxim.com Email: [email protected] Private: http://www.cvandewater.info Skype: cor_van_de_water Tel: +1 408 383 7626 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Adrian DeLeon Sent: Thursday, January 02, 2014 10:27 AM To: Electric Vehicle Discussion List Subject: Re: [EVDL] Michael's 48V lawn tractor/mower conversion: update Why not fit whatever batteries you can on the mower and put the rest in a small trailer? Having the weight up front would help with hill climbing, but if you have a relatively flat lawn/property, towing a small trailer should be no big deal. Even better: Keep enough juice on-board for moving/hauling stuff around. Add the small trailer only when mowing. Use a pair of those 350A Anderson connectors to connect/disconnect the extra batteries. When not pulling the trailer, use a second 350A connector that's nothing but a shorting block. -Adrian On Wed, 01 Jan 2014 15:02:14 -0800, Michael K Johnson <[email protected]> wrote: > If I were being reasonable I probably wouldn't have started this in the > first place. So far I haven't done anything that would outright make > going > back to ICE impossible. I'm still expecting to succeed, but wanted to > record in the archives what I learned so far for the benefit of the next > newbie pondering the idea. > > > On Mon, Dec 30, 2013 at 7:32 PM, David Chapman <[email protected]> > wrote: > >> Michael, >> This is just a suggestion and I almost hate to make it but... What about >> taking a step back and simply fix up the ICE engine and reinstall and >> return the tractor to proper function as cheap as possible. Set aside >> and >> look for a better donor tractor to convert. I find decent older garden >> tractors for reasonable prices frequently. I just sold a John Deere 8 HP >> that was in beautiful condition for less than $200. I bought it for $ 50 >> bucks at a yard sale and all it needed was a carburetor, battery and >> ignition switch. Found I didn't have time to mess with it so I put it on >> Craigslist and it went away in a couple weeks. I still have one of those >> MDK K-Mart 2 cyl tractors that runs and drives and I am hoping someone >> will >> come along and give me what the motor is worth and haul it off, as it is >> not suitable either to build an electric tractor out of. I have a >> vintage >> Allis Chalmers that I am looking to convert that I picked up for next to >> nothing, that thing is >> built like a brick. Anyway if you find you can get an EV tractor up and >> ready for the season simply sell the ICE back up tractor. Don't know if >> this helps but just another take on the situation... Dach. _______________________________________________ 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) _______________________________________________ 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)
