battery at 13.45v ? (1 Viewer)

[Itsmcb]

I recently removed my old hab battery to fully charge with my new victron charger whilst the van is in for a gearbox repair. Its a standard Halfords 110amp lead acid battery.
I removed it from charge on Monday and its still holding at 13.45 volts today. I didnt think that was possible?

 

[John Barrett]

I recently removed my old hab battery to fully charge with my new victron charger whilst the van is in for a gearbox repair. Its a standard Halfords 110amp lead acid battery.
I removed it from charge on Monday and its still holding at 13.45 volts today. I didnt think that was possible?

Mine settle at 12.7v. It might be the compressed rice paper in your volt meter getting damp...

 

[Vipar]

Nar. You have a faulty multimeter

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[Itsmcb]

Mine settle at 12.7v. It might be the compressed rice paper in your volt meter getting damp...

I hope not, I've just checked my car battery and that's at 12.80, went back to the hab battery, still 13.45

 

[Itsmcb]

Nar. You have a faulty multimeter

Same reply as above (I hope not, I've just checked my car battery and that's at 12.80, went back to the hab battery, still 13.45)

 

[Raul]

That’s LiFePo4 resting voltage.

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[Itsmcb]

That’s LiFePo4 resting voltage.

Sadly it's not a lithium, just a lowly lead acid

 

[Richard n Ann]

Isn't it called surface charge? Our Gel leisure battery stays high for a while but not that long

 

[Raul]

Yes surface charge, but, it should fade fairly quick, less than 30mins.

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[Richard n Ann]

Maybe it's acid stratification

Water Loss, Acid Stratification and Surface Charge - Battery University

Explore simple guidelines to prolong lead acid batteries by proper use

batteryuniversity.com

 

[Itsmcb]

Maybe it's acid stratification

Water Loss, Acid Stratification and Surface Charge - Battery University

Explore simple guidelines to prolong lead acid batteries by proper use

batteryuniversity.com

I'll try gently shaking it and see if that helps.

 

[Vipar]

I’m off to do 10 laps around Brands Hatch to rejuvenate my batteries

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[Itsmcb]

I’m off to do 10 laps around Brands Hatch to rejuvenate my batteries

Not sure I understand this comment??

 

[autorouter]

I recently removed my old hab battery to fully charge with my new victron charger whilst the van is in for a gearbox repair. Its a standard Halfords 110amp lead acid battery.
I removed it from charge on Monday and its still holding at 13.45 volts today. I didnt think that was possible?

I agree with Richard and Ann, it's surface charge. I take it your battery is isolated, on a bench, not connected in to a motorhome. The small drain current when connected usually dissipates the surface charge in a an hour or two max.

 

[Itsmcb]

I agree with Richard and Ann, it's surface charge. I take it your battery is isolated, on a bench, not connected in to a motorhome. The small drain current when connected usually dissipates the surface charge in a an hour or two max.

Yes it is on a bench. I can't think of anything here I can connect to it. It'll have to wait until Saturday when I can refit it into the van.

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