Hi Jerry, I am not Al, but I have plenty experience in hill climbing challenges. My truck weighs about 4400 lbs with its 120V flooded golf cart batteries (20 of them +2 for the aux) However, the controller limits the current to about 300A, probably because the motor has too low inductance (11 inch GE motor) so the current has high spikes, triggering the current limit (should be 500A). The result is a definitely underpowered truck that takes about a minute to reach max freeway speed. You can imagine that when I get into the foothills that I need to maintain speed to reach uphill or when starting from a stop, I can only *creep* up the steeper slopes. Does not matter that the batteries are full, there simply is too little torque to make it up steeper inclines.
Hope this clarifies, Cor van de Water Chief Scientist Proxim Wireless Corporation http://www.proxim.com Email: [email protected] Private: http://www.cvandewater.com Skype: cor_van_de_water XoIP: +31877841130 Tel: +1 408 383 7626 Tel: +91 (040)23117400 x203 -----Original Message----- From: [email protected] on behalf of Jerry Yue Sent: Sat 6/8/2013 6:40 PM To: Electric Vehicle Discussion List Subject: Re: [EVDL] 100ah pack on the cheap Hi Cruisin, Are you using lead acid batteries for your EV ? Do you have any experience that your battery can't climb a slope while it has plenty of electricity ? Jerry On Sun, Jun 9, 2013 at 9:34 AM, Cruisin <[email protected]> wrote: > If you want to do it on the cheap, stick with ACID > > > > -- > View this message in context: > http://electric-vehicle-discussion-list.413529.n4.nabble.com/100ah-pack-on-the-cheap-tp4663470p4663472.html > Sent from the Electric Vehicle Discussion List mailing list archive at > Nabble.com. > _______________________________________________ > 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) > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20130609/515bafc3/attachment.htm> _______________________________________________ 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)
