(ET) PV powered ET more questions

[robert winfield <winfield100 yahoo com>]

Is this a hallucination and am I asking for an
explosion?
My Elec-trak has 6 DEKA Solar batteries in series for
36volts.

If I take 3 pairs of cables to the screw tops
(batteries are connected by the lead squeeze
connectors) and parallel them off so I have 3 sets of
12 volts, am I asking for an explosion if I run that
into a 12v charge controller or a 12v in 120v out
1.75kw Xantrex inverter?
Can I have batteries wired both in series and
parallel?
I realize dead shorts anywhere are very bad. 

I suspect I have too many paths for the electrons but
when I look at the drawing, if the charge controller
or the inverter can take it is looks ok.
I just have a queasy feeling I am missing something.

This is so I can use Solar PV to charge my batteries,
carry a small inverter on the ET to run a small
commercial inverter for string trimmers and electric
chain saws (Price Club/CostoCo had a nice deal on
1.75kw Xantrex inverters)
(and run the fridge, a radio and a couple of lights in
a pinch.) (There are a LOT of trees hanging over a LOT
of electric lines anywhere I drive, many more than
10-15 degrees past vertical)

(alt energy store sells 36v charge controllers i found
out, 5, 10, 20 etc amp)

--- daveb <daveb seanet com> wrote:
> last year I was able to buy a 36v CC from BZ
> products for under $70.  don't 
> know if they are still around and available though. 
> let me know if you are 
> interested and I'll make the effort to look up my
> old receipt and info.
> 
> dave
> seattle
> 
> --
> Open WebMail Project (http://openwebmail.org)
> 
> 
> ---------- Original Message -----------
> From: robert winfield <winfield100 yahoo com>
> To: elec-trak cosmos phy tufts edu
> Sent: Wed, 28 Apr 2004 13:01:52 -0700 (PDT)
> Subject: (ET) PV powered ET
> 
> > I have an E-12.
> > I am trying to figure how to use photovoltaics to
> > charge the batteries. I had this discussion before
> but
> > the info has vanished (sorry Chris)
> > Can I use a 12 and/or 24v charge controller and
> clip
> > it on either 2 or 4 of the batteries.
> > The PV I am looking at puts out probably 120 watts
> > depending on how configured I can series them to
> get
> > 12v or 24v or 36v and 1/2 or 1/3 the amps
> > 12v@10amp or 36v@3.3amp.
> > I would also like to yank the battery charger out
> for
> > more room or shoehorn bigger batteries.
> > basically advice:
> > 2 charge controllers, 1@12v and 1@24v jumpered
> across
> > 2 or 4 batteries
> > 
> > could i use 1 24v and have the electrons wander
> > towards the 2 batteries not in that circuit)
> > 
> > 1 charge controller @36v (and where to find one??)
> > comments?
> > 
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> ------- End of Original Message -------
> 



        
                
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