Charging Issue - battery voltage reads 16.8V??

[Ed63]

My 2009 GV 250 starts and runs when the battery is fully charged, then a day or two later, won't turn over.  Battery load tested at 200 cca and showed 12.8V after charge.

I started it, warmed it to two bars, and checked the voltage at the battery.  It read 16.8V!

I'm thinking bad voltage regulator.

Anyone else experience this?  Would appreciate your thoughts.

[scooterfan]

Rather don't run the engine. That voltage will kill the battery.
Voltage regulators are cheap -  a new one should solve the problem.

[Ed63]

Rather don't run the engine. That voltage will kill the battery.
Voltage regulators are cheap -  a new one should solve the problem.

Thank you! 

I figured the voltage was too high.  Just never experienced this before.  Always thought a bad regulator meant not enough voltage rather than too much.
I appreciate your response.