Voltage prob

[Feustond1000]

Hello everyone! New here so I hope I do this right. I have a 2005 mercury bigfoot 50hp 4 stroke that im having trouble with. When im going across the lake the voltage gage Goes up to 16 v and beeps. The boat will continue to run for the most part..this happend last night and after I started it back and was heading back to the dock ot just cut off but would fire right back up..it cut off twice on the way back. I noticed when leaving the dock it was kinda hard to turn over at first than it fired right up after trying 3 times. Im pretty sure my battery is draining just sitting there. Can anyone help me? Thanks everyone.

 

[Scott Danforth]

Clean your battery cable connections

 

[Feustond1000]

All the connections look great. I noticed after 3-5 mins of idling my voltage regulator was very hot. Is this normal?

 

[GA_Boater]

Bad connections can look great. Have you cleaned the battery posts and connectors? Poor connections can cause the reg/rect to overheat due to excess current.