There is almost no difference in the two batteries. The reserve capacity rating means one can deliver 25 Amps for 115 minutes, and the other 25 amps for 122 minutes. the one doing the 122 minutes may have a tiny bit better plate connection, or maybe be a little bit heavier. My rule of thumb, FWIW, is buy the heavier battery, that usually means more lead on the plates, which can lead to better performance.
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Jim and Valerie, 2005 Winnie Adventurer 37B, 2014 Subaru Forester Toad, hitches, brakes, anti-sways, autopilot, gourmet food on a Social Security budget.
"Wave as you go by."
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