I've got Crown but they are 235AH. They came with the boat last summer. They are four years old. They weren't used correctly. One set is off 0.15 volts @ about 12.6v at full charge.
I would check each manufacturer weight - heavier = more lead..... Higher AH rate = thinner plates in the same form factor.
I am replacing with Rolls - S6-250
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Irony
Bayliner 4588
Portsmouth, NH
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