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Posts: 3
| It will only last 4 or 5 hrs and all of the sudden act like the batteries are drained. I had the batteries tested on a load tester/diagnostics. And tested good. I put new brushes and armature in and still the same problem. Checked all connections from front to back and they are good. Could a control bd cause this??? |
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Posts: 1660
Location: central Wisconsin | How old and what size are the batts? |
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Posts: 3
| 4th season. Interstate 750 marine cranking amps and 160 reserve.
Running in series for 24volt pd 70
Tested good today on a diagnostic tester at advance auto |
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Posts: 1767
Location: Lake Country, Wisconsin | I bet it's the batteries... |
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Posts: 5874
| What is the voltage on the batteries after you lose power? Sounds like batteries to me. |
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Posts: 3
| The whole test done at advance auto i think is bogus. It is good for at least 4 hours. So i think they will test good. I just dont think it will catch how long it will hold a charge. Those tests are only good to detect a major failure i beleive.... |
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Posts: 2687
Location: Hayward, WI | I would bet on the batteries too. In my experience, batteries can be "weird" in how they test vs operate. I had one once that would not start my outboard by the end of the day but it load tested fine.
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Minn kota PD 70 losing power