nxrsr20 wrote:If it is a cheap chinese battery, then no surprise that I new one would pack it in. It could be anything from sulfated plates to loose internal connection. Hopefully you haven't thrown out the receipt and you can get an exchange.
The incorrect battery voltage can make the bike do all sorts of strange things.
It's a Motobatt one. Had it a year but only 30 odd hours of use. Regular starting but occasional periods of no use.
Anyway, I should probably look at a new one. Will change it over with a friends one and check the results.