So I've had my gsf250 for a month and a half or so. When I got it the battery seemed pretty buggered (not starting, having to crash start etc), so I replaced it with a new one from the local motorcycle shop. Everything since has been fine except the same problems are starting to occur that caused me to replace my last battery.
I charged the battery, left it overnight, and check the voltage in the morning. Voltage was 12.8V, I then started the bike and the voltage was around 13.3V. Rode the bike to work (about 10km) checked the voltage again while the bike was off and the battery voltage was about 12.3V. Started the bike again and the voltage was again around 13.3V. I then revved the bike and the voltage immediately dropped to around 12.9V-13.0V.
This seems strange to me that the voltage would drop so sharply when revving the bike. I'm thinking problems with the charging coils (not sure what they are called on a bike, most of my mechanical/electrical experience is on cars).
Any ideas on what this could be?
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