248 voyager with 2002 Yamaha f225

Some are saying that 2002 Yamaha F225 TURA should not use agm batteries others say it’s ok, not sure what Yamaha says but was told older Yamahas can’t run agm’s due to alternators used on them
 
I've got a 2004 Grady White 228 Seafarer with a single 2004 Yamaha F225 on it, of which I replaced my batteries on it in the fall of 2023 with dual Interstate brand 24M-XHD's and haven't had any issues with them. Before doing so, I talked with my local GW dealership of which they said just get the same version of new batteries that the old ones were, both of which I believe are starting/cranking batteries. They also didn't recommend that I go with the AGM's, their claim was that they don't do well with excessive vibration, bouncing up and down, they don't last more than a few years, etc. Right or wrong, that's just what they told me and I stuck with the wet cell batteries mentioned above.
 
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