Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
What kind of car (and year)?Was like minus 20C for a couple of days, now it is a 10V lead-acid. One cell shorted? Any 'high tech magic' cure to restore it ? If the cell is shorted cannot see it as recoverable![]()
Was like minus 20C for a couple of days, now it is a 10V lead-acid. One cell shorted? Any 'high tech magic' cure to restore it ? If the cell is shorted cannot see it as recoverable![]()
Since he already changed the battery, and I assume he returned the old battery to avoid the core chafe and avoid a lead boat anchor from crowding his garage, I would recommend not trying anything with the old battery.Hi,
Supposedly, if you let a battery sit for too long without a decent charge, it goes bad. If it freezes, there is a greater chance that it goes bad. This all depends on the battery and exact condition and time it was left alone, so it's hard to predict what the damage would be in total.
What I would try is connect a battery maintainer to the battery and let it sit like that for a while. It may work good enough. This will charge the battery.
If it could not take a charge, then it would not be able to turn the engine at all.
There is the strong possibility that there will be an increased self discharge. That means that it may still work if you drive the car every day or maybe very other day, but you may not be able to let it sit for days without running the engine or applying a charge with a good charger or maintainer.
There is also the possibility that the car may not be able to charge it enough if the internal resistance went up. Many cars use a minimal charge voltage level and they do not fully charge the battery even when new. You could check that though by measuring the battery voltage (right on each terminal) while the engine is running. If the voltage is less than 14.0 volts after just cranking it, it may not work over time even if you start the car every day. If it is 14.2 volts there's a good change it will work for a longer time. If it's like 14.5 volts or above, there is a very good chance it will work out for a longer time, although you may still have to run the engine every day or every other day depending on how bad the battery is.
I rarely saw a battery go completely dead, 0.00 volts, but it does happen. To start with, 10.0 volts is a lot better condition than 0.00 volts![]()
Another question... At the moment that 2 Volt charged and healthy cell internally shorts; isn't that a large power dissipation event; with the heat damaging (or thawing ! ) something ?
Since he already changed the battery, and I assume he returned the old battery to avoid the core chafe and avoid a lead boat anchor from crowding his garage, I would recommend not trying anything with the old battery.
Hi Al. It is not 'supposedly'; it is a fact. 24 hours discharged and will never fully recover again.
The '10V' battery never went discharged, was an active-in use one. Car started fine few days before the freeze weather. Was on a good trickle charger weeks before and during the freeze days.
I did not return the failed '10Volt' battery as core; instead a true cadaver one was the core given.
I have other uses for the '10V' one, for irrigation pump from a cistern...
Naivety is so cute. Bright eyes and smiles trying to solve a problem and nothing can get in your way.unless he goes back to the store and askes for the old one back
Naivety is so cute. Bright eyes and smiles trying to solve a problem and nothing can get in your way.
Unfortunately, as soon as the battery retailer accepts the old battery, it becomes hazardous waste* and they can only transfer it to a licensed handler.
* unless the battery passes rigorous tests and it can be sold as "used". But you'll quickly find the used battery market is nearly non-existent because few people replace good batteries for the joy of having a new one.
So, no, asking for the old one doesn't work in the U.S.
Naivety is so cute. Bright eyes and smiles trying to solve a problem and nothing can get in your way.
Unfortunately, as soon as the battery retailer accepts the old battery, it becomes hazardous waste* and they can only transfer it to a licensed handler.
* unless the battery passes rigorous tests and it can be sold as "used". But you'll quickly find the used battery market is nearly non-existent because few people replace good batteries for the joy of having a new one.
So, no, asking for the old one doesn't work in the U.S.