[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: (ET) looking for 36 volt charger...



Thanks for all the suggestions.  I've pretty much decided I really need to 
go 
with a new fully automated smart charger simply because my e-trac and I 
don't 
live together and I get to see it only on the weekends.  I believe I need 
someething I can plug in and forget.  I know I could use a Landis charge 
controller with the original ferro-resonant charger but ...

I've found two that I like.  The ChargeTek TPRO320 is very versatile in 
that 
it'll charge 12/24/36volt batteries and I can use purposes other than just 
the 
e-trac.  the other, IOTA Engineering does 36v only but can be used as a 
power 
supply as well as a charger.

I read and confirmed by phone that I will not have to split the pack or 
install 
complex switching to use the ChargeTek as it is actually 3 isolated 
chargers 
capable of isolating the the 3 pairs of 6v batts. I would like to do that 
because of the 12v and 18 volt taps into the pack that put unequal loads 
on the 
loads batteries.  

Also I did some calling looking for used 36v chargers at golf courses and 
golf 
car dealers.  No deals out here in Seattle.  Couldn't find a used charger 
for 
under $200 and they were only semi-automatic or timer-controlled. 

Eventually I'll have an Outback Inverter/charger and MX controller but 
that's a 
ways off yet. 

thanks again everyone,
dave
seattle
 
> One possibility; get a combined inverter charger.  I looked into this a 
> few 
years ago,
then 
> repaired what I had.  The price is 'cheap' (and of course, many people 
suspect quality as
soon as 
> 'cheap' is mentioned).  I looked into a 'name-brand' Xantrex, a company 
> I 
deal with for
work.  They 
> specialize in switching power supplies, but they didn't make a combo 
> when I 
asked last. 
Here's an old 
> e-mail from a cheap Taiwanese company:
> 
> "
> OK, I thought I might as well be complete on the 'cheap' inverters.
> 
> I e-mailed again, asking about combined inverter/chargers (I don't 
> much care for the ET charger) and the reply is below.  First another 
> thought.
> 
> Now I have been thinking.  I may yet design an inverter for this 
> puppy.  A 'cheap' power amplifier driven by an astable multivibrator 
> (if you don't know what that means, don't worry) is very easy to 
> do BUT the frequency would be high unless you use expensive caps.  
> It would not clock 60 Hz at all, but this could be done with the 
> transformer of the charger of the ET with only a few modifications.  
> Cost would be in the tens of dollars.  However, I am thinking about 
> doing a clocked design and doing it right.  Essentially the only 
> part of the charger you would use would be the transformer.  I think 
> I could upgrade the charger while I am at it.  This would cost more.  
> It might cost as much as the ones listed below.  It would be fairly  
> wimpy; Bill Gunn once told me the charger could put out 20 Amps for 
> a while (I haven't measured it-- has anyone else?) but that only 
> works out to something like 720 watts.  If that's continuous it might 
> do, but if it's intermittent it isn't that good.  Compare it with the 
> ones below.  I'm going to try and model the designs.  I will keep the 
> list posted.
> 
> Larry Elie
> 
> Here's the reply on the inverter/chargers.
> 
> Date : 05/Oct/00
>  
> Dear Mr. Larry Elie
>  
> Thanks for your reply. 
>  
> Re : DC to AC Power Inverter with battery charger
>  
> Please kindly refer our best price as below -
>  
>                                       F.O.B. net Taiwan 
> G-36-060C (500W continuous)  US$115.00/pce
> G-36-100C (800W continuous)  US$160.00/pce
> G-36-150C (1200W continuous) US$260.00/pce  
>  
> We wish your order will be confirmed soon. 
>  
> Kind regards
>  
> Jason Chang
> 
>  
>  
> ----- Original Message ----- 
> ?±H?¥?ó?ª?Ì: Elie, Larry (L.D.) 
> ?¦?¬?¥?ó?ª?Ì: 'Jason Chang/Tops-mate Int'l Corp.- Taiwan' 
> ?¶?Ç?°e?¤?é?´?Á: 2000?¦~10?¤?ë5?¤?é AM 02:10
> ?¥D?¦?®: RE: Inverters
> 
> 
> Thank you so much.  Final question; Do you have any 36V combined
> inverter/battery 
> chargers?  If so, any other info on them such as price would be welcome.
>  
> Larry Elie
>  "
> 
> 
> 
> -----Original Message-----
> From: Dave & Debbie Barden [mailto:daveb seanet com]
> Sent: Monday, June 23, 2003 6:11 PM
> To: scr echoweb net; roden ald net; elec-trak cosmos phy tufts edu
> Subject: (ET) looking for 36 volt charger...
> 
> 
> my new e-trac came to me sans charger so now I am looking for  charger.  
> I am 
> wonder if I can use the type that has 3 separate outputs and is able to 
charge 
> 12/24/36 volts.  here's the link:  
> http://www.4unique.com/battery/chargetek/chargetek_2000.htm
> 
> it seems this would be very versatile.  What I don't know is if I can 
> hook it 
> up to the 3 pairs of 6volt batts without have to disconnect the pack in 
> 3 
> everytime I need to charge. Does anyone have experience with these types 
> of 
> chargers?  
> 
> Or what are your favorite chargers for under $300???
> 
> TIA,
> Dave
> Seattle
> E12S
> E15modified
> 
> 
> > Hi David,
> > 
> > You know us I'm sure, you being an old EV'er.
> > Its Alltrax Inc., or formally DCP.
> > 
> > See our web site at;
> > www.alltraxinc.com
> > 
> > We have not made any formal announcements yet about the new 
> > controller, but
> > it should be available for the Elec-Traks first since my E-15 will be 
> > used
> > to iron out the bugs.
> > 
> > Steve
> > scr echoweb net
> > 
> > ----- Original Message -----
> > From: "David Roden (Akron OH USA)" <roden ald net>
> > To: <elec-trak cosmos phy tufts edu>
> > Sent: Monday, June 23, 2003 7:38 PM
> > Subject: Re: (ET) E12S and a curtis controller??
> > 
> > 
> > > On 23 Jun 2003 at 19:07, Steve Richardson wrote:
> > >
> > > > If you are not in a great hurry, in 4 or 5 weeks from now my 
> > > > company can
> > > > offer you a controller that is designed for the E-15 type sep-x 
> > > > motor.
> > >
> > > May I inquire -- what company is that?
> > >
> > >
> > > David Roden - Akron, Ohio, USA
> > > 1991 Solectria Force 144vac
> > > 1991 Ford Escort Green/EV 128vdc
> > > 1970 GE Elec-trak E15 36vdc
> > > 1974 Avco New Idea 36vdc
> > > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
> > > Thou shalt not send me any thing which says unto thee, "send this to 
> > > all
> > >
> > > thou knowest."  Neither shalt thou send me any spam, lest I smite 
> > > thee.
> > >
> > > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
> > >
> > > Est. yearly US cost to safeguard Persian Gulf oil supply: $50 billion
> > >
> > > Est. 2001 value of US crude oil imports from Persian Gulf: $19 
> > > billion
> > > -- Harper's Index, April 2002
> > > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
> > >
> > >
> > >
> > > _______________________________________________
> > > Elec-trak mailing list
> > > Elec-trak cosmos phy tufts edu
> > > https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
> > >
> > >
> > 
> > 
> > _______________________________________________
> > Elec-trak mailing list
> > Elec-trak cosmos phy tufts edu
> > https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
> > 
> 
> 
> 
> 
> 
> _______________________________________________
> Elec-trak mailing list
> Elec-trak cosmos phy tufts edu
> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>