Had this issue with the R1250RT - apparently the hot engine means more compression, so need more power to start - after a while the OEM-battery just doesn’t have the punch.
I upgraded the battery to the Yuasa YTX20CH‑BS and it solved the problem.
I prefer Yuasa.
I live in Taiwan and Yuasa batteries are made here so they\u2019re cheap as chips.
I have ordered a Yuasa 7031 which has 72Ah VS 40Ah on the 7055, and 720CCA VS 400CCA.
I only buy Yuasa batteries . The one's that come with the acid pack. I had one on my Honda Valkyrie that lasted 10 years. It never failed but at 10 years I thought it best to replace it.
After multiple electrical tests, and multiple batteries fitted, the Yuasa 7055 did the trick. EV mode engaged immediately after I fitted it.
Yuasa. Best non lithium battery and I sold a lot of batteries. The battery in my mower for the last 2 years came out of my Valkyrie. The reason I replaced it in the Valkyrie was because it was 10 years old and I felt I might be pushing it even though it never gave me a problem.
Put a Yuasa in the Fiesta when I had it. It worked... I can't say much beyond that.
I bought a 6v Yuasa battery for my old Harley and it lasted about six months. Would drop from fully charged to 2.5 volts in a week of sitting.
Yuasa used to make great batteries, would get ten years out of a battery ('91 R100GS) outside w/o a battery tender. Not any more, the last two were good for six or seven months
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