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BassMunky

Battery testing voltage?

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When be a good time to replace a battery? Had both for 2 yrs now front rest at 12.6 back rest at 12.3? Both Duracell agm group 31 from sams.

Edited by BassMunky

Shakin not Stirred....my buildhttp://www.stevemead...ngle-cab-build/412 CVX

And put a sealed enclosure in your trunk cut a hole in your deck and call it ported :lol2:

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Most battery’s are rated to be dead at 12v and have testing of around 12.9 so at 12.3 that’s almost dead lol,  if those resting voltage are after charging them I’d say both battery’s are bad or going bad. 

Not sure if dif brands have dif resting voltages so it could be different.

Edited by Dragonsyph

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XS recommends 12v batteries stay above 12.6 so 12.3 is in bad water depending on the brand


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Select battery type (agm) place in charge mode, when charge is complete it will automatically go into maintain mode (pulsing green LED). *If the charger 
has to provide its maximum maintain 
current for a continuous 12 hour period, 
it will go into abort mode (see Aborted 
Charge section)*

Leave it in maintain for a day, then remove charger for a day, then check battery resting voltage with a multimeter

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Let charge and float for a day. Then disconnect rest for a day 

Check voltage after? 

 

Just confirming 

Edited by BassMunky

Shakin not Stirred....my buildhttp://www.stevemead...ngle-cab-build/412 CVX

And put a sealed enclosure in your trunk cut a hole in your deck and call it ported :lol2:

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11 hours ago, reedal said:

Select battery type (agm) place in charge mode, when charge is complete it will automatically go into maintain mode (pulsing green LED). *If the charger 
has to provide its maximum maintain 
current for a continuous 12 hour period, 
it will go into abort mode (see Aborted 
Charge section)*

Leave it in maintain for a day, then remove charger for a day, then check battery resting voltage with a multimeter

Also the schumacher cant go to desulphate directly. Should I get a ctek  charger? Those can directly choose desulphate.


Shakin not Stirred....my buildhttp://www.stevemead...ngle-cab-build/412 CVX

And put a sealed enclosure in your trunk cut a hole in your deck and call it ported :lol2:

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