Re: Tipped over battery

Posted by Fish'n Jim On 2017/9/3 12:48:43

Be very careful handling concentrated sulfuric acid. Need neoprene gloves and splash/eye protection.

Adding conc. acid to dilute is OK. The other way is dangerous and will cause uncontrolled heating and boiling.
The old chemist saying - add acid to water, not water to acid.
Probably best to buy or make up a batch at the correct concentration and add back to refill the battery to level. From the recommended specific gravity, the correct concentration can be determined. Prolonged use with insufficient acid will cause it to fail prematurely/not deliver the correct ampacity.

Or simply go buy a new battery, now or when it dies. Just depends how much you want to fool around to save a few dollars. Garages used to do this, but today, I don't anyone handling battery acid routinely. They just sell new batteries. They used to sell hydrometers to test the acid, but I haven't seen those around much either. I think mine died of hard-rubberitis a long time ago.