Reply to thread

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Message: <blockquote data-quote="ionbeam" data-source="post: 934248" data-attributes="member: 277">When you hook your battery to the charger use the DMM to confirm that you are reading a charging voltage of greater than 13.2 volts.  After charging all night at room temperature,  if the resting voltage of your battery is below 12.8 volts you have a battery problem.  If the resting voltage is 13.2 volts you may have a motorcycle charging problem.Start your bike then shut it off using the red Run/Stop button, this will keep your headlights on.  Leave your bike like this for 15 - 20 seconds then turn the key off (remember to switch the Run/Stop button back on) and immediately measure battery voltage.  This represents your battery after a heavy discharge.  Now measure your battery voltage around every 10 minutes until the battery voltage stops recovering.  This will give you a recovery voltage curve as well as demonstrating your battery's ability to recover.  From this we should be able to determine the health of your battery.  This test is best done with ambient of 60°F or higher.  If it is other than this let us know roughly what ambient is while the battery is recovering.</blockquote>