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| Battery Frozen https://www.smwebhead.com/phpBB3/viewtopic.php?f=21&t=12626 |
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| Author: | AlexJ [ Mon Feb 10, 2014 4:41 pm ] |
| Post subject: | Battery Frozen |
What happens to a battery in sub zero terms? |
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| Author: | NiagaraChillin [ Mon Feb 10, 2014 4:46 pm ] |
| Post subject: | Re: Battery Frozen |
Left unattended in the boat? On a charger? If left in the boat, not on a charger, they usually discharge and die. If on a charger, they could do ok. Now if your talking Antarctica cold, it might freeze solid. |
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| Author: | AlexJ [ Mon Feb 10, 2014 4:51 pm ] |
| Post subject: | Re: Battery Frozen |
Will it crack? |
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| Author: | NiagaraChillin [ Mon Feb 10, 2014 4:53 pm ] |
| Post subject: | Re: Battery Frozen |
If it freezes solid, yeah it might. Is it the old school kind that you can add water too, or new sealed kind? |
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| Author: | AlexJ [ Mon Feb 10, 2014 5:01 pm ] |
| Post subject: | Re: Battery Frozen |
Add water. |
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| Author: | NiagaraChillin [ Mon Feb 10, 2014 5:15 pm ] |
| Post subject: | Re: Battery Frozen |
Oooo...yeah, it will prob freeze and crack. Especially if it is sub-zero temps. |
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| Author: | AlexJ [ Mon Feb 10, 2014 5:18 pm ] |
| Post subject: | Re: Battery Frozen |
Thanks |
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| Author: | Paul I. [ Mon Feb 10, 2014 10:02 pm ] |
| Post subject: | Re: Battery Frozen |
Let think about it. You car, how cold is it out? Is your battery frozen? BUT, the more discharged you battery is. The more likely it will freeze. AGM type are good to -50. |
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| Author: | LouC [ Tue Feb 11, 2014 7:01 am ] |
| Post subject: | Re: Battery Frozen |
If the battery is fully charged when the boat is stored the battery should not freeze. I charge the batteries when the boat is winterized and then once or twice over the winter. So far I have not had a frozen battery. |
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| Author: | AlexJ [ Tue Feb 11, 2014 8:28 am ] |
| Post subject: | Re: Battery Frozen |
I'll try charging and see what happens. Only if I can get to it. I'll have to dig my way in. |
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| Author: | LouC [ Tue Feb 11, 2014 11:29 am ] |
| Post subject: | Re: Battery Frozen |
If you think it is frozen do NOT charge it, a frozen battery can explode if you try to charge it. Take it inside, remove the caps and look inside. If not frozen then you can try to charge it. If no caps then let it warm in the house for a day and then try charging it (outside carefully)! |
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| Author: | kd4pbs [ Tue Feb 11, 2014 11:33 am ] |
| Post subject: | Re: Battery Frozen |
As others have eluded to, it depends on it's state of charge. Code: charge voltage electrolyte freeze point 100 % 12.60 no load > 12.1 under load -75° F 75 % 12.06 under load -35° F 50 % 11.58 under load -17° F 25 % 11.04 under load +5° F 5 % 10.5 under load +18° F Dead dead dead = freeze at + 27°F Better yet, measure the specific gravity of the electrolyte and use this table: Specific Gravity of Electrolyte Freezing Point (degrees F) 1.265 -75° F 1.225 -35° F 1.200 -17° F 1.150 +5° F 1.100 +18° F 1.050 +27° F Above all, don't listen to those that will swear a battery discharges if you leave it sitting on concrete; that's an old wives tale and will cause those that know better to point at you and laugh. |
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