Sorry, no. It became more noticeable when on tour as not on the trickle charger and bike being ridden every other day.
On my '22 V4 PP, I got 3 years out of the original battery. Started to get symptoms of slow starts last month, and so I ordered a replacement Yuasa battery for $95 USD. Have been on several rides since replacement, and no further issues with starting. During the wet/icy months (Nov - Mar) here in the Pacific Northwest region of the US, I place the battery on a 750 mA battery maintainer, and the bike is stored in an insulated garage.
