ocularus any way for me to test 'em out without taking it to the dealer?
This could be the case of a bad battery, but.....
Depends? Do you own and know how to use a multimeter? How comfortable are you troubleshooting electrical problems?
All you would need then is the correct service manual for your bike. All the procedures for testing the charging system's various components and service spec's are outlined in the electrical section of the service manual.
Remember all these test should be performed with a good and fully charged battery (12.5v+) or the tests results may not be accurate.
Make sure you have good, clean, tight, wire harness connectors/terminals to the stator and reg/rec. (ie. make sure the stator wire harness connector under the left lower cowling is secure and undamaged)
You could start by checking charging system output. This basically consist of connecting the multimeter's + lead to the Positive battery terminal and the meter's - lead to the neg. battery terminal. Start the bike and hold the engine RPM's at 5000RPM. You should see voltage rise to and hold @ approx. 14v @ 5000RPM.(verify charging system voltage output spec. for your model in the service manual) As stated in the service manual, a reading above or below the specified range indicates a charging system issue.
You'll would then proceed with measuring generator coil resistance at the gen. wire harness connector. The manual also provides info on how to check the regulator/rectifier.
You may want to check out this information in the service manual and based on that, make a decision on whether you want to tackle it yourself.
Barring this just being the case of a bad battery....I'm leaning towards a bad stator, but you are still going to want to test everything including the battery, reg./rec. applic. wiring and confirm this.