muz123 1,182 #1 Posted October 14, 2018 May be a similar problem to another current topic I've been following. One of my 520s will not charge the battery. Measured voltage while running and shows 11.3 volts. Ususallu shows between 12.5-14 volts. Could it be regulator? Dave Share this post Link to post Share on other sites
KC9KAS 4,741 #2 Posted October 14, 2018 Very good possibility. Are all the connections clean & tight? Share this post Link to post Share on other sites
Tractorhead 8,526 #3 Posted October 14, 2018 Is the Ground wire between Battery and Engine and/or Chassis clean and intact? Share this post Link to post Share on other sites