How many miles on the alternator? They usually start to go at 30,000 and usually die by 50,000. miles.
I got the One Off system on my bike for 2 years now. no issues at all.
2013 Ducati Hypermotard SP, 2011 Husaberg FE570S, 2011 BMW S1000RR, 2010 BMW F800GS
2007 Husqvarna TE610 , 2003 KTM 525 MXC