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Posts: 50
| 2 years ago I bought a new boat and with that I put 2 humminbirds on it and both have gps and are connected with an ethernet. Both units are hooked up to starting battery. On both of my week trips to Ontario, the starting battery died during midweek. Replaced the starting battery after the second trip. Never had a problem the rest of the year. (All my trips were 1 or 2 days max) Last year, same thing. Dead battery in Ontario. Spent a bunch of time looking for a voltage draw. (sounds easy but its not) I kept track of battery voltage every day in the garage even when the boat wasn't used. Still nothing changed. I've come to the conclusion that the 2 Birds were draining down my starting battery. The outboard was charging at over 14 volts when it was running but it wasn't keeping up. I found this hard to believe because of some of the long motor runs when in Ontario. I'm pretty sure I have this problem solved now. When I bought my boat, I had a 2 bank onboard charger installed for the 2 trolling motor batteries. I just purchased a 3 bank charger so now whenever I charge the trolling motor ones, I also charge the starting. Now I need to sell a 2 bank charger.
Good Luck
Brian | |
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