How much water to add to batteries

[Trophyhunter8]

With all this on battery maintenance, do you fill all the way up or just cover the lead. I have been filling mine all the way up. But when I charge them they bubble over, didn't know if it's bad or normal. what do yall do.

[BassBandit35]

I have been filling mine all the way up. But when I charge them they bubble over, didn't know if it's bad or normal. what do yall do.

Bubble up- your over charging the battery. Not good. Buy you a good charger that will not over charge it. Get the one that WILL stop charging when it is fully charged.

[PRO V LE]

The year is 2010! Why do you still use old time battery's that require maintence? I do not want any battery acid or fumes in my boat. I just replaced my 8year old Delco Voyagers just because of their age they still hold a good charge and power my VHF, light system etc. I am giving the Optimas a test at this time but the point being that I will not even see them again for several years.

[crappiepappy]

With all this on battery maintenance, do you fill all the way up or just cover the lead. I have been filling mine all the way up. But when I charge them they bubble over, didn't know if it's bad or normal. what do yall do.

According to what I've read :

You charge your battery, THEN add distilled water ... and only until the water level is just below the pour holes. This applies only when the lead plates are not exposed. If exposed, add just enough distilled water to cover the plates ... THEN charge, & then replace enough fluid to come within 1/4-1/2 inch of the bottom of the pour holes. All fluid levels should be equal. Careful testing of each cell, with a hydrometer, is also recommended. ALWAYS REMEMBER that you are dealing with sulfuric acid, and be safe !!

Lead acid batteries can & should "bubble" ... some. This mixes up the fluid, removes sulfation from the plates ... but, also releases hydrogen gas, which can explode if it comes into contact with a flame or electrical spark. Too much "bubbling" can also blow off the battery caps, and/or splatter the acid onto the battery & surrounding area.

More info here : http://www.windsun.com/Batteries/Bat...AQ.htm#Battery Charging

...pappy

[Panfish Man]

Like already mentioned, right beneath the fill holes is where you want your distilled water. You are definately ruining your batteries if your leaking water out of the top, trickle charge them, or get a charger that will shut off when your charge is full.

[Trophyhunter8]

I have a dual pro 3 channel or whatever. They are supposed to be the best