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has anyone seen the TOP terminals of their battery swell up?

Diysolar123

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Joined
Feb 28, 2021
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I did a search and nothing turned up. I have had lead acid batteries swell on the sides before but never the top terminals.
These are duracell deep cycle 6v 215Ah golf cart batteries, I have four in series.
I have been working on getting a lifepo4 battery bank to replace them but the wait/delays have now been around 8months!!
The sides of the each battery are not bulged, just the top positive terminal which is probably a good 3-6mm pushed up.

every seen that?
 
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