New regulator shows 15.16 V on 3000-4000 rpm

[jamthebamm]

I just changed the old regulator with a new Rick's Motorsport Regulator/Rectifier , I'm concern about if it's gonna damage the battery ( Shorai lithium )  
PS My ohmmeter might not be accurate enough tho , I bought it super cheap from ebay .

[sgtslag]

It depends on what type of lithium battery you have installed.  If it is a lithium-phosphate, then the maximum charging voltage is 13.2 volts; if it is li-manganese, it is 15.2 volts; if it is li-cobalt, then it can handle up to 14.4 volts; if it is a li-NMC, it can handle up to 14.8 volts.  These calculations are made from this web page:  http://batteryuniversity.com/learn/article/lithium_based_batteries.

Having said all of that, here is the true bottom line:  contact the vendor, and ask them what the maximum charging voltage the battery can withstand.  Matter of fact, tell them what you measured for charging voltage on your bike, and ask if that will damage the battery.  If their answer is, "Yes,", then you will need to replace that hi-tech battery for something a little lower on the tech scale:  AGM.

Come back and let us all know what you find out.  You could save all of us some headaches.    Cheers!

[jamthebamm]

Well it seems they are lithium iron phosphate power sports batteries. They mention on shoripower.com "Shorai LFX™ batteries have the same charge requirements as AGM lead-acid batteries and all modern vehicle charging systems work with Shorai LFX™ batteries."
Well they did not specify anything about voltag and ets which i guess as you said i need to call them up and find out .

[kandrtech]

I understand your worry about the battery - but what about everything else?  Obviously, the other parts of the bike are designed for 14.5 volts (or so).  Overvoltage will shorten the life of these components, too.

The effect of overvoltage is a reduction of life of equipment.

Your regulator isn't working correctly.  I had a similar problem several years ago - it was a poor ground connection.

[jamthebamm]

well I checked the voltage today and surprisingly everything seemed to be normal , I guess it was just one thing right after the regulator installation !!