batteries need replacing?

[BrentB]

I like this article


https://usbattery.com/wp-content/uploads/2014/05/usb-charging-recommendations.pdf

[DayBreak]

You are correct Dr. Bob. I should not have used the term trickle. That would imply the use of a trickle charger which I would never consider using for long-term storage to keep a battery fully charged. Thanks. Gary.

[A Fishin C]

Thank you all for the input.

I replaced the batteries, but left the wiring the same after checking all the connections .

I think I realize why this suddenly happened after 4-5 years. I put 3 inch zincs on the tabs this year after having 2 inch zincs for all previous years. Maybe the extra weight is causing the extra draw.

[thataway]

I doubt that a few oz of zinc would make much significant difference in the current draw. Consider the force when you push down on the tab and the boat is on a plane? Be sure and check out these circuits to be sure there is no defect.

Good boating.