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Discussion Starter #1
Ok, i 2 amp charge my batts on at a time. After they are done charging they read around 12.7-12.6 I am pretty sure this is what a fully charged batt should read. I'm i right?
 

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Fully charged almost 14! ;)
 

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Discussion Starter #3
Originally posted by timdog57@Dec 2 2003, 11:52 AM
Fully charged almost 14! ;)
no...... wtf 14 :uh:
 

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Originally posted by rollin low in a grand prix+Dec 2 2003, 02:03 PM--></span><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (rollin low in a grand prix @ Dec 2 2003, 02:03 PM)</td></tr><tr><td id='QUOTE'><!--QuoteBegin--timdog57@Dec 2 2003, 11:52 AM
Fully charged almost 14! ;)
no...... wtf 14 :uh:[/b][/quote]
;)


13.8-14.1V
 

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Discussion Starter #5
Originally posted by timdog57+Dec 2 2003, 12:06 PM--></span><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (timdog57 @ Dec 2 2003, 12:06 PM)</td></tr><tr><td id='QUOTE'>
Originally posted by -rollin low in a grand [email protected] 2 2003, 02:03 PM
<!--QuoteBegin--timdog57
@Dec 2 2003, 11:52 AM
Fully charged almost 14! ;)

no...... wtf 14 :uh:
;)


13.8-14.1V[/b][/quote]
these are 12.v batts we are talking about right
 

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Originally posted by rollin low in a grand prix+Dec 2 2003, 02:17 PM--></span><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (rollin low in a grand prix @ Dec 2 2003, 02:17 PM)</td></tr><tr><td id='QUOTE'>
Originally posted by [email protected] 2 2003, 12:06 PM
Originally posted by -rollin low in a grand [email protected] 2 2003, 02:03 PM
<!--QuoteBegin--timdog57
@Dec 2 2003, 11:52 AM
Fully charged almost 14! ;)

no...... wtf 14 :uh:

;)


13.8-14.1V
these are 12.v batts we are talking about right[/b][/quote]
Yes!! :biggrin: And I menat to put 13.2- 14.1! ;)
 

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Timdog is right!!!

A fully charged 12v deep cycle battery should read 13.8-14.1V. Why don't you charge just one time on fast charge and then drain the energy again and try to go with a 1 amp load. And if you only have a 2 amp load charger then that will just do.

If results still the same then you have a battery that is 25% dead at all times. ;) :thumbsup:
 

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Originally posted by WANNADANCE@Dec 2 2003, 07:05 PM
Timdog is right!!!

A fully charged 12v deep cycle battery should read 13.8-14.1V. Why don't you charge just one time on fast charge and then drain the energy again and try to go with a 1 amp load. And if you only have a 2 amp load charger then that will just do.

If results still the same then you have a battery that is 25% dead at all times. ;) :thumbsup:
i have some gel cells, regular and deep cycles. I've never had them read past 13 for an extended period of time. Normally they charge to 12.5-6 Does the 25% dead apply here? What does 25% dead really mean as far as use?
 

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S.A.E. has set the industry standards for a fully charged battery. Although a deep cycle battery will show a much greater reading, just after it has been charged, a fully charged battery should show a voltage of 13.2 volts. Then check the voltage after the battery has been allowed to cool down. :cool:



Last edited by CaliLow at Dec 2 2003, 08:49 PM
 

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Originally posted by CaliLow@Dec 2 2003, 07:30 PM
S.A.E. has set the industry standards for a fully charged battery. Although a deep cycle battery will show a much greater reading, just after it has been charged, a fully charged battery should show a voltage of 13.2 volts. The check the voltage after the battery has been allowed to cool down. :cool:
I slow charge overnight, single battery. Batteries don't get hot and I've never had a problem with them until I use them to start a car. I've had 3 gel cells die when I used them to start a car and don't crank them over for a week or so. Weird.

For hydraulics, I've never had a problem with my gel cells. I have some that I didn't take care of and they are over 4 years old.
 

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The gel cell deep cycles I bought a few months ago don't stay charged over 13v but I've yet to use them. Possibly bad?
 

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Discussion Starter #12
i still dont believe the 14v crap :uh: i can see like 13.2 but 14 come on
 

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Discussion Starter #13
Engineers at DieHard say "It is typically 12.67 volts for a fully charged lead-acid deep cycle battery."

maybe im misuderstanding...when you pull the charge off the battery will read around 14v but contuinually drop to 12.6 after a day....
 

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Originally posted by timdog57+Dec 2 2003, 02:19 PM--></span><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (timdog57 @ Dec 2 2003, 02:19 PM)</td></tr><tr><td id='QUOTE'>
Originally posted by -rollin low in a grand [email protected] 2 2003, 02:17 PM
Originally posted by [email protected] 2 2003, 12:06 PM
Originally posted by -rollin low in a grand [email protected] 2 2003, 02:03 PM
<!--QuoteBegin--timdog57
@Dec 2 2003, 11:52 AM
Fully charged almost 14! ;)

no...... wtf 14 :uh:

;)


13.8-14.1V

these are 12.v batts we are talking about right
Yes!! :biggrin: And I menat to put 13.2- 14.1! ;)[/b][/quote]
:uh: :uh: :uh: :uh: :uh:

That is why I said 13.2-14.1 It will drop after a couple hours of being off of the charger!! ;)
 

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Discussion Starter #15
thank you...

again optima battery site

"After a battery comes off charge, wait a day before checking voltage to determine the state of charge. Final 100% state of charge readings should be 1.265 specific gravity and 12.7 volts"



Last edited by rollin low in a grand prix at Dec 3 2003, 05:49 PM
 

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Well I have had my Deca batteries 31 series for about a year now and I have spoken to techs and I have also worked at Advance Auto Parts where I have used their computer <battery, alternator, and starter diagnostic center>. And my batteries have read 13.45 when I first bought them and now they read 13.15V.

I have also heard cases that there are few manufacturing companies that have batteries that actually read 13.9V. Some of these types you may find them on the turbo start batteries.

Furthermore, if you still not convience that some batteries can have such loads then why don't you look into the mallory racing batteries. They're using 16.5V and these batteries are really small.

:biggrin: :biggrin: :biggrin: :biggrin:
 

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I also forgot to mentioned that their is truth on waiting a day after a complete charge to check the voltage. But one must also consider that their is temperature involve.

For example, lets just say that someone that has a lowrider lives in New York and the temperature is 35 degrees F. and the other lives in Mexico and the temperature is 91 degrees F. Both having the same battery will always read different and if you also check on some batteries right next to the CCA and CA readings they have a temperature indicated.

it is abvious that temperature is also a factor. ;)
 

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Discussion Starter #19
Originally posted by milkweed@Dec 3 2003, 09:14 PM
a battery is made up of individual cells each cell fully charged and in good condition is rated at 2.2 volts
there are 6 cells ber batt

6 x 2.2 = 13.2 volts
16v race batts dont count :uh:
 

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Originally posted by rollin low in a grand prix+Dec 3 2003, 10:41 PM--></span><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (rollin low in a grand prix @ Dec 3 2003, 10:41 PM)</td></tr><tr><td id='QUOTE'><!--QuoteBegin--milkweed@Dec 3 2003, 09:14 PM
a battery is made up of individual cells each cell fully charged and in good condition is rated at 2.2 volts
there are 6 cells ber batt

6 x 2.2 = 13.2 volts
16v race batts dont count :uh:[/b][/quote]
You're right it doesn't but I was trying to set an example. In conclusion if battery reads 13.1V-14.0V after reading the charge the following day then the battery is 100% OK. If not then one or more batteries is mested up. ;)
 
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