jasontaylor
1 mW
- Joined
- Apr 30, 2011
- Messages
- 16
Being an idiot, I failed to verify that my chinese charger wasn't going overcharge my 12v car battery. Worse, I let it sit in float mode for a week. Well, the picture here shows why I'm here. https://www.quora.com/Is-it-true-that-all-Chinese-battery-chargers-both-overcharge-and-have-a-float-post-charge-maintenance-voltage-that-is-too-high/answer/Jason-Taylor-16 (The charger took the battery to 15 volts.) Needless to say, above about 14.4v a flooded lead acid battery will release gas. Now the battery's energy capacity seems low. I will need take it apart and refill it with water or sulfuric acid. But what I don't know is how much H2O vs. Hydrogen Sulfide was released, so I am not sure which ratio of which to add.
Now, conventional wisdom seems to be that you should not ever add any sulfuric acid to a car battery. If I knew this for sure to be true I would not be here. The problem with this idea is posts like this https://batteryuniversity.com/learn/article/health_concerns which includes this sentence: "Over-charging a lead acid battery can produce hydrogen sulfide."
Assuming I can somehow get the top off of the car battery, what's the ideal amount of water to add? What's the ideal amount of sulfuric acid to add? Is the conventional wisdom correct? How would the the exact model of the car battery come into play?
Now, conventional wisdom seems to be that you should not ever add any sulfuric acid to a car battery. If I knew this for sure to be true I would not be here. The problem with this idea is posts like this https://batteryuniversity.com/learn/article/health_concerns which includes this sentence: "Over-charging a lead acid battery can produce hydrogen sulfide."
Assuming I can somehow get the top off of the car battery, what's the ideal amount of water to add? What's the ideal amount of sulfuric acid to add? Is the conventional wisdom correct? How would the the exact model of the car battery come into play?