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Leisure Battery Voltage



 
 
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  #1 (permalink)  
Old January 24th 04, 05:38 PM posted to uk.rec.motorcaravans
SH[_2_]
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Posts: 25
Default Leisure Battery Voltage

What is the charged voltage for a fully charged leisure battery?
How does this compare with a normal car battery?

Steve


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  #2 (permalink)  
Old January 24th 04, 06:31 PM posted to uk.rec.motorcaravans
QrizB
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Posts: 95
Default Leisure Battery Voltage

On Sat, 24 Jan 2004 17:38:21 -0000, "SH"
wrote:

What is the charged voltage for a fully charged leisure battery?
How does this compare with a normal car battery?


Leisure batteries use the same range of chemistries as car batteries,
so the voltages should be the same. But you shouldn't expect (say) a
low-maintenance battery to have quirte the same characteristics as a
maintenance-free one.

www.batteryfaq.org for more than you ever wanted to know about
lead-acid batteries.

--
QrizB

I sound like I know what I'm talking about, but don't
be fooled.
  #3 (permalink)  
Old January 24th 04, 06:51 PM posted to uk.rec.motorcaravans
Ben
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Posts: 23
Default Leisure Battery Voltage

Fully charged around 12.7 volts would be expected, but this must be measured
with no current draw (known as the open circuit voltage)

I try not to let the voltage drop below 11v, whether loaded or not.


  #4 (permalink)  
Old January 24th 04, 07:26 PM posted to uk.rec.motorcaravans
CampinGazz
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Posts: 339
Default Leisure Battery Voltage

12.8 volts, sam as a car battery as they're the same chemistry, just have
different sized plates inside to handle the current needs differently (high
current short duration starter battery, low current, long duration leisure
battery)

remember to leave the battery sat idle for a few hours after charging to let
the surface charge dissapate, or you'll get a false high voltage reading at
the terminals.


"SH" wrote in message
...
What is the charged voltage for a fully charged leisure battery?
How does this compare with a normal car battery?

Steve




  #5 (permalink)  
Old January 25th 04, 09:07 AM posted to uk.rec.motorcaravans
SH[_2_]
external usenet poster
 
Posts: 25
Default Leisure Battery Voltage

Would 12.71v (at 45degrees F) be alright? Measured after charging & being
left overnight.
Steve

" wrote in message
...
Fully charged around 12.7 volts would be expected, but this must be

measured
with no current draw (known as the open circuit voltage)

I try not to let the voltage drop below 11v, whether loaded or not.




  #6 (permalink)  
Old January 25th 04, 05:36 PM posted to uk.rec.motorcaravans
Ben
external usenet poster
 
Posts: 23
Default Leisure Battery Voltage

Sounds OK to me. If it's not broke, don't fix it - that's what they always
tell me!


  #7 (permalink)  
Old January 25th 04, 11:03 PM posted to uk.rec.motorcaravans
Tony Maris
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Posts: 161
Default Leisure Battery Voltage

As Campingazz says, 12.8 volts whether Leisure battery or car battery.

Straight off charge it's likely to register around 13.5 volts but this can't
be maintained. Either leave it standing for a few hours or apply a
reasonable load for a short period to dissipate the surface charge.

We have a 'Drop Tester' that draws around 80 amps. Just a few seconds with
this will remove the excess. Caution is required though. A battery
straight off charge will be giving off explosive gases. Full body armour
is required!

Regards

--
Tony M
Towbars & Trailers
Chesterfield
Specialists in Towing Equipment
NTTA Council Member
http://www.towitall.co.uk
QSA accredited for Towbars and Trailers



"CampinGazz" wrote in message
...
12.8 volts, sam as a car battery as they're the same chemistry, just have
different sized plates inside to handle the current needs differently

(high
current short duration starter battery, low current, long duration leisure
battery)

remember to leave the battery sat idle for a few hours after charging to

let
the surface charge dissapate, or you'll get a false high voltage reading

at
the terminals.


"SH" wrote in message
...
What is the charged voltage for a fully charged leisure battery?
How does this compare with a normal car battery?

Steve






  #8 (permalink)  
Old January 26th 04, 10:01 PM posted to uk.rec.motorcaravans
SH[_2_]
external usenet poster
 
Posts: 25
Default Leisure Battery Voltage

So a 12.6v reading after being fully charged & left for the day isn't too
good then?

"Tony Maris" wrote in message
...
As Campingazz says, 12.8 volts whether Leisure battery or car battery.

Straight off charge it's likely to register around 13.5 volts but this

can't
be maintained. Either leave it standing for a few hours or apply a
reasonable load for a short period to dissipate the surface charge.

We have a 'Drop Tester' that draws around 80 amps. Just a few seconds

with
this will remove the excess. Caution is required though. A battery
straight off charge will be giving off explosive gases. Full body armour
is required!

Regards

--
Tony M
Towbars & Trailers
Chesterfield
Specialists in Towing Equipment
NTTA Council Member
http://www.towitall.co.uk
QSA accredited for Towbars and Trailers



"CampinGazz" wrote in message
...
12.8 volts, sam as a car battery as they're the same chemistry, just

have
different sized plates inside to handle the current needs differently

(high
current short duration starter battery, low current, long duration

leisure
battery)

remember to leave the battery sat idle for a few hours after charging to

let
the surface charge dissapate, or you'll get a false high voltage reading

at
the terminals.


"SH" wrote in message
...
What is the charged voltage for a fully charged leisure battery?
How does this compare with a normal car battery?

Steve








  #9 (permalink)  
Old January 26th 04, 10:45 PM posted to uk.rec.motorcaravans
QrizB
external usenet poster
 
Posts: 95
Default Leisure Battery Voltage

On Mon, 26 Jan 2004 22:01:04 -0000, "SH"
wrote:

So a 12.6v reading after being fully charged & left for the day isn't too
good then?


Well, it's not dreadful. Also, 0.1 volt is well within the error band
of most voltmeters. I'd be happy with 12.6 volts (although I'd keep an
eye on it).

--
QrizB

I sound like I know what I'm talking about, but don't
be fooled.
  #10 (permalink)  
Old January 27th 04, 12:55 AM posted to uk.rec.motorcaravans
CampinGazz
external usenet poster
 
Posts: 339
Default Leisure Battery Voltage


"Ben" wrote in message
...
Sounds OK to me. If it's not broke, don't fix it - that's what they always
tell me!


Naaaah, if it aint broke, you aint tried hard enough


 



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