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Discussion Starter #1
1) Is there an issue with charging my truck with flooded T-125's while
parked on an angle.
Typically I'm parked on a flat surface, but at work there is a slight pitch
front to back.
What about a sideways pitch
(the batterie's are in both 0 and 90 and 180 and 270 degree orientations.

Does this only matter if the batteries are low on water?

What happens to the part of the plates not coverred with water.?


2) What happens when I drive up a steep hill at high current and some of
the plate is not coverred by water?

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Discussion Starter #2
A full battery should always keep the plates covered even on an
incline. If you look at a dead dry battery you will see that the top
of the plates are much further down to allow full coverage even when
a tad low on water to protect the plates. If your batteries have
plates showing your not doing your job keeping up with your job to
keep the batteries in top condition.

Pete



[email protected] wrote:

> 1) Is there an issue with charging my truck with flooded T-125's while
> parked on an angle.
> Typically I'm parked on a flat surface, but at work there is a
> slight pitch
> front to back.
> What about a sideways pitch
> (the batterie's are in both 0 and 90 and 180 and 270 degree
> orientations.
>
> Does this only matter if the batteries are low on water?
>
> What happens to the part of the plates not coverred with water.?
>
>
> 2) What happens when I drive up a steep hill at high current and
> some of
> the plate is not coverred by water?
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev

_______________________________________________
For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev
 

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Discussion Starter #3
What about discharge on a fairly steep incline? Meaning a higher current
draw. I have a few of those that I need to traverse, once my car is
running. Maybe I should have gotten gel or agm.

Brian

On 11/7/07, [email protected] <[email protected]> wrote:
>
> A full battery should always keep the plates covered even on an
> incline. If you look at a dead dry battery you will see that the top
> of the plates are much further down to allow full coverage even when
> a tad low on water to protect the plates. If your batteries have
> plates showing your not doing your job keeping up with your job to
> keep the batteries in top condition.
>
> Pete
>
>
>
>
[email protected] wrote:
>
> > 1) Is there an issue with charging my truck with flooded T-125's while
> > parked on an angle.
> > Typically I'm parked on a flat surface, but at work there is a
> > slight pitch
> > front to back.
> > What about a sideways pitch
> > (the batterie's are in both 0 and 90 and 180 and 270 degree
> > orientations.
> >
> > Does this only matter if the batteries are low on water?
> >
> > What happens to the part of the plates not coverred with water.?
> >
> >
> > 2) What happens when I drive up a steep hill at high current and
> > some of
> > the plate is not coverred by water?
> >
> > _______________________________________________
> > For subscription options, see
> > http://lists.sjsu.edu/mailman/listinfo/ev
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
_______________________________________________
For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev
 

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Discussion Starter #4
Make sure you have at least 1 inch of electrolyte above your battery plates
when you are park on a level. The electrolyte level in a charge battery
should be to the bottom of the fill neck, which is just touching or could be
a little bit higher.

Only add distill water at about 85 to 90% State of Charge, which is about at
the end of charge, so the water mixes better and you do not overfill because
charging some high ampere batteries, the electrolyte level will rise.

Check out the grade that you are parking on. Take a level and mark a line
at 3-3/8 inches, 7 inches, 10-1/8 inches and 12 inches on the level. The
10-1/8 inch mark is the length of your battery. The 3-3/8 inch mark is the
length of a cells in the 10-1/8 inch of the length of the battery and 7
inches is the cell length in the 7-3/8 inch width of the battery.

Place the level on the slope with one of the level touching the ground and
hold it level using the level bubbles as a indicator. While you are holding
it level take a ruler and measure from the 3-3/8 inch and 7 inch mark to the
ground.

Lets say these reads 1/4 inch in 3-3/8 inches, so that's what the difference
if level from one end of the cell to the other. This is close to a 12-1
pitch or is call a 1 inch rise in 12 inch run of length.

So for a quick check, just read the rise of slope at the 12 inch mark.

If its reads 1 inch at the 12 inch mark, then for one cell length of about 3
inches, the electrolyte will have above 0.29 inch difference in level.

Therefore 1-12 is about 0.29 inch difference.
2-12 is about 0.58 inch difference.
4-12 is about 1.16 inch difference.

A 4-12 pitch per foot is about 20 degree of angle. This is about the normal
rise of a roof on a house is at.

The normal drive way that is slope from the street to the house may be as
high as 2-12 pitch or about 10 degree angle. Streets are crown at about 0.5
inch per foot or 0.5-12 and sidewalks are slope at 0.25 inch per foot.

The maximum slopes that the interstate highways are kept at about 7 percent
rise or 90 degrees x .07 = about 6.5 degrees which is about 1.3 inches per
foot.

So if your drive ways reads about 2-12 pitch or 2 inch rise in 12 inches,
your electrolyte level may be about 1/2 inch difference from one end of the
cell to the other in the 10-1/8 inch length of the battery.

If the battery slopes the 7-3/8 inch width of the batter, the cell lengths
are about 7 inches long, so if you park on a 2-12 pitch slope than the
electrolyte level could be just over 1 inch difference.

It is best to keep the electrolyte as high as possible or only park on
slopes of 1 inch rise in 12 inches.

Roland




----- Original Message -----
From: <[email protected]>
To: <[email protected]>
Sent: Wednesday, November 07, 2007 7:22 AM
Subject: [EVDL] charging flooded batteries on an angle


> 1) Is there an issue with charging my truck with flooded T-125's while
> parked on an angle.
> Typically I'm parked on a flat surface, but at work there is a slight
> pitch
> front to back.
> What about a sideways pitch
> (the batterie's are in both 0 and 90 and 180 and 270 degree orientations.
>
> Does this only matter if the batteries are low on water?
>
> What happens to the part of the plates not coverred with water.?
>
>
> 2) What happens when I drive up a steep hill at high current and some of
> the plate is not coverred by water?
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>

_______________________________________________
For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev
 
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