So the owner's manual calls for a 12V charge for the battery, but I'm finding I need 13V to get the starter to actually continue working long enough to get the motor to turn over (according to the voltmeter, that is).
Not sure if the voltmeter readout is accurate or not, but regardless, the battery will be down to 12.4V or so after two days of not riding, and then I won't have enough juice to be able to start the bike (starter will start working, then fail and click out rapidly--not sure about what technically is happening here), so I have to take the battery out and charge it again (I live in a city, so I have to remove the battery and bring it inside every time I need to charge it).
Is it possible I'm not getting the RPMs up high enough to charge the thing when riding?
Or the stop and go of the city prevents good charging?
Or the battery is faulty somehow? (It's brand new.)
Any tips for maintaining a higher charge for longer?
If this is just how it is, I can live with it and act accordingly, but something feels a bit off and I'm just looking for second opinions.