Any way to fix leaky battery post?

[oil pan 4]

Usually I just replace the leaker with an AGM, problem solved -$200 or more.
Usually when they leak this bad they're near end of their useful life any....
I've got a flooded group 65 (bigger and expensiver) battery in my ford that tests pretty good but it just leaks. I can probably get another year or 2 out of it aside from the leaking.
As far as achieving the means to an end I'm not afraid of electricity, battery acid or melting lead, more afraid of spending $269 not including tax to replace a serviceable but messy battery with a sweet AGM.
The way I figure it I'm probably in it for a new battery, saving this one can be an experiment, even if it fails.

Has anyone ever tired:
Super glue?
RTV?
Cutting off and recasting the post to stop a leak?
It doesn't have to last a real long time, even a few months would be a success.

 

[walterjay]

I would use an epoxy. You have nothing to lose.

 

[doitmyself]

You could also install those battery felt protectors and change them as needed to retain the battery in service. Maybe double them up.

 

[oil pan 4]

You could also install those battery felt protectors and change them as needed to retain the battery in service. Maybe double them up.
View attachment 290326

Yeah those are okay. I was more interested in keeping the acid inside the battery.

 

[doitmyself]

A Google search claims that epoxy will form a mechanical bond with lead. If attempting the epoxy, I would get the plastic and lead super clean and use coarse sandpaper to get a good rough surface to enhance the bond.

 

[walterjay]

I recommend Gorilla Clear Epoxy for that application. It seems to have just a little bit of flexibility to it when cured.

 

[toad]

Usually I just replace the leaker with an AGM, problem solved -$200 or more.
Usually when they leak this bad they're near end of their useful life any....
I've got a flooded group 65 (bigger and expensiver) battery in my ford that tests pretty good but it just leaks. I can probably get another year or 2 out of it aside from the leaking.
As far as achieving the means to an end I'm not afraid of electricity, battery acid or melting lead, more afraid of spending $269 not including tax to replace a serviceable but messy battery with a sweet AGM.
The way I figure it I'm probably in it for a new battery, saving this one can be an experiment, even if it fails.

Has anyone ever tired:
Super glue?
RTV?
Cutting off and recasting the post to stop a leak?
It doesn't have to last a real long time, even a few months would be a success.
View attachment 290325

I've repaired two batteries with leaking post seals using epoxy. They both kept the seal until the batteries were replaced, one for 4 years and the other for 2 years. Clean the area well with a toothbrush and baking soda, then rinse well, dry well, rough up the plastic and polish the lead with sandpaper,and apply the epoxy. I went slightly up the post with the epoxy, maybe 1/8 ". I should add that my batteries were not in quite as bad shape as yours. Good luck!