gathermewool
Site Donor 2023
Clif Notes Version: How do you know how much distilled to add to battery cells?
I posted before, how the 51R-size battery in my Civic had electrolyte level just below the lead on one cell before charging it from dead. I didn't have to add much to bring it up to just above the plates, but that's all I did, raise level to just above the plates and then charge the battery.
After the battery was fully charged, I filled each cell with distilled water to between what I'm assuming are the high and low level indications.
What I'm assuming is the level indication, are the two C-shaped plastic pieces that dip into the electrolyte of each cell's fill hole. I'm assuming the bottom of the plastic pieces is the min level for electrolyte. At a higher level, the these opposing Cs join. I'm assuming this is the max level, which still gives some margin for expansion to the top of the fill hole.
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I actually noticed the same thing in the stock battery for the Subaru, though the distance from the top of the plates to the bottom of the plastic pieces is larger. I want to add distilled water to the Subie's battery, but I want to make sure that the level should be, post charge, measured in the way I mentioned above.
This post should illustrate what I'm talking about:
I posted before, how the 51R-size battery in my Civic had electrolyte level just below the lead on one cell before charging it from dead. I didn't have to add much to bring it up to just above the plates, but that's all I did, raise level to just above the plates and then charge the battery.
After the battery was fully charged, I filled each cell with distilled water to between what I'm assuming are the high and low level indications.
What I'm assuming is the level indication, are the two C-shaped plastic pieces that dip into the electrolyte of each cell's fill hole. I'm assuming the bottom of the plastic pieces is the min level for electrolyte. At a higher level, the these opposing Cs join. I'm assuming this is the max level, which still gives some margin for expansion to the top of the fill hole.
//
I actually noticed the same thing in the stock battery for the Subaru, though the distance from the top of the plates to the bottom of the plastic pieces is larger. I want to add distilled water to the Subie's battery, but I want to make sure that the level should be, post charge, measured in the way I mentioned above.
This post should illustrate what I'm talking about: