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Old 04-02-2012, 09:17 AM   #1
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Batteries

Batteries seem to have caps that are not designed to get off easily? Do I pry them off with a screw driver?????
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Old 04-02-2012, 09:31 AM   #2
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Usually, but not always, the caps cover three cells and can be removed by lifting with a screw. Who is the mfg. of the batteries?
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Old 04-02-2012, 09:40 AM   #3
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Quote:
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Batteries seem to have caps that are not designed to get off easily? Do I pry them off with a screw driver?????
Home,

OK.....
Yes

There are three kinds of lead/acid batteries:
Common batteries that should be taken care of,
Common batteries that have been made maintenance resistant,
Special batteries that be maintenance proof because none should be required.

Common batteries have caps and the electrolyte level should be maintained.

Common batteries with maintenance resistant caps will still benefit from having the electrolyte level maintained, but the manufacturer both believes that the owner is not smart enough to pour water into a hole, and expects you to buy a new battery very soon. So, if you are smart enough to pry off the caps and add the required water, you can probably extend the life of the battery several years. If the cap breaks (many do), just look at the holes carefully and then go to either a scrap yard or a recycling center and claim some replacement removable caps.

Special batteries are GelCel or AGM and neither has liquid electrolyte to refill, but these are not real common in RVs.

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Old 04-02-2012, 10:01 AM   #4
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Batteries seem to have caps that are not designed to get off easily? Do I pry them off with a screw driver?????
There are two kinds of wet cells and 3 kinds of caps, er 4 or 5 kinds.

Flooded wet cells, like most Golf Car batteies either have single screw on caps or triple "Cam-lock" caps (Interstate uses this method) though the cam lock are not all that easy to remove.. All it takes is fingers and it is obvious that they are removable.

Screw on caps are also easy to remove.

Now, I have seen flooded wet cells with pop on caps, A triple cap that is easily removed by grabbing one long edge and lifting.

Maintenance free types tend to be smooth top, there is no easy way to remove the caps, and the reson for this is you should NOT remove them.
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Old 04-02-2012, 11:07 AM   #5
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I got them off! One or two holes needed a touch of water! Thanks for the advice....
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Old 04-04-2012, 08:44 PM   #6
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One caution on filling batteries with water. The level should only be about 1/4" over the plates (thin lead and fiber) in the cell. Anymore and the gases have only one place to leave the electrolyte and that is at the fill hole. This does not allow any liquid that came along with the bubbles to fall back into the electrolyte and is pushed out the vent in the cap. This causes excess corrosion on the battery terminals and alot of extra maintenance.
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