[mrlmd1]

You said in a previous post that " I got a multimeter today. battery was fully charged and it was sitting at around 12.17 Volts Fired up the bike and it jumped to 13.6 Volts. Guess this means the charging system is working..... Now I guess i need to run it till it dies again and check the battery with the meter.."

You have a bad battery.
Of course the guy in the battery shop wants to blame it on your charging system without even looking at the battery.
Do what I told you before -- Charge it up all the way, bring it in for a load test and see if it's any good.
If you get another battery, just make sure it's charged fully, by you. before you use it.
Simple things first, in order, that's how you go about solving a problem. You never had that battery tested. Your voltmeter is not a load tester.
Or, if you want, go rip the bike apart looking for something else. Until you eliminate the battery as the problem, and you haven't yet, you will be spinning your wheels, not those of your GZ.