Re: (ET) [Fwd: Re: charger problem]

["Darryl McMahon" <darryl econogics com>]

In my opinion, if you are not seeing at least 42.5 volts at the end of
charge, you are not fully charging your batteries (this assumes flooded
lead-acid deep-cycle batteries).

Depending on the manufacturer, they may recommend finishing voltages in
excess of 45 volts (for 'equalization' charges).

After sitting after a full charge, the pack reading should be at least
37 volts, and more likely between 38 and 39 volts.  32 volts is a level
I expect to see under load, near 80% discharge, not at full charge.

You want to get this resolved before you damage one or more batteries,
or figure out if you need to get a battery replaced under warranty.  As
suggested previously, you want to measure the voltage of each battery -
at the posts - not at the end of cables.

It almost sounds like one of your batteries isn't in the loop, or is a
dead-short (contributing no voltage to the string).  Neither of those
seems likely, so I'm puzzled by the symptoms.

I don't mow with my machine, but I do rototill.  I would characterize
solenoids at the end of a session as warm, but not hot.  However, that
is subjective.

Darryl McMahon

paul mitchell2007 comcast net wrote:

> 
> 
> So I chargerd up my E12 and mowed my lawn this afternoon (less than
1/2
> acre).  The batteries are brand new and after charging all night on
the 1-2
> year setting, the charge of the power pack read 32 volts.  Any
thoughts why it
> would be so low?  While charging, it was reading upwards of 38v. 
> 
> 
> 
> After mowing, the solenoids are very hot, so I'm going to let it all
cool down
> before recharging.  Is it normal for these to get hot?  
> 
> 
> 
> Also, I followed the instructions in the manual and tried mowing in D1
and in
> D2 with the throttle all the way forward.  It didn't seem to matter
where I
> placed the throttle...the power use guage was in the red the entire
time the PTO
> was on. 
> 
> 
> 
> Thoughts? 
> 
> 
> 
> Paul 
> 
> 
> 
> 
> ----- Original Message ----- 
> From: "Jim Coate" <jbc_lists_NO_REPLY coate org> 
> To: "Elec-Trak" <elec-trak cosmos phy tufts edu> 
> Sent: Monday, May 11, 2009 2:08:36 PM GMT -05:00 US/Canada Eastern 
> Subject: (ET) [Fwd: Re: Â charger problem] 
> 
> The charger info sounds good, but... what's up with battery B2? It
would 
> appear to be at zero volts??? 
> 
> Can you measure the voltage of each battery? 
> 
> 
> paul mitchell2007 comcast net wrote: 
> > 
> > I also measured the voltage on the batteries: 
> > B5 to B6: 12.66v 
> > B5 to B4: 18.98v 
> > B5 to B3: 25.32v 
> > B5 to B2: 31.66v 
> > B5 to B1: 31.66v 

--
Darryl McMahon
Water Savers toilet fill diverters aren't sexy, 
but they save water and your money.
http://www.econogics.com/WaterSaver/