[JerryHawk250]

Originally Posted by JFOlivier

The problem with the AGM, gell and probably lithium cells is in the charging systems. I have no experience with lithium batteries but have worked on charging systems on gell and AGM banks and the max of 14.2 volts is quite important on these batteries as above that voltage causes gassing which to the AGM's will cause loss of electrolyte and in the gells gas caused bubbles or cavities around the plates which will cause loss of battery capacity over time and eventually leading to failure. AllI can see in the motor cycles wiring diagram are the 3 stator coils leading to a rectifier and am not sure if the output voltage is controlled or not, I suspect not and will try to check what that voltage is when next I remove the Lifans seat. This of course will be charging a Lithium Ion battery.

This is all very true. It's always a good idea to check actual output t make sure you are not over charging. If it does over charge then it would be a good time to upgrade to a better rectifier/voltage regulator. Your battery will later much longer.