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89 SN2001 battery drain |
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8122pbrainard 
Grand Poobah 
Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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 Topic: 89 SN2001 battery drainPosted: April-30-2020 at 2:55pm |
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Clean up the wiring first. A second battery isn't going to do any good if the alternator isn't charging the original. How old is the battery and have you had it load tested?
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SN89Russ
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Joined: October-18-2017 Location: NC Status: Offline Points: 5 |
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Posted: April-30-2020 at 2:39pm |
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I just took the whole alternator in, to ensure nothing was wrong with it. Given the age I suspected it maybe worn out. Wiring was my next step.
I've thought about adding a second battery in the boat as a back up. Any thoughts to that? |
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Russ
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8122pbrainard
Grand Poobah
Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: April-30-2020 at 12:41pm |
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Russ,
Did you check the voltages as recommended or just take the alternator in? I'd start cleaning up ALL wiring connections including battery cables and their terminals. |
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SN89Russ
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Posted: April-30-2020 at 12:23pm |
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Thanks, I took the alternator to a local alternator shop and it tested fine. I wonder if wiring, or old equipment (blower, etc.) are drawing too much amperage due to age? The radio is simple deck, small amp, and 4 - 6" speakers, no subs or anything major. I've heard this is a common problem for the older SN2001s.
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Russ
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8122pbrainard
Grand Poobah
Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: April-28-2020 at 12:14pm |
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Get the VOM (volt Ohm meter) out and get a voltage reading at the battery when the engine is running and then when it's not running. You should see around 14 running and with a battery charged around 12 not running. If you don't see the 14, then your alternator is suspect.
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SN89Russ
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Posted: April-28-2020 at 12:10pm |
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I have a 89 SN2001 that drains the battery while running. Can't run 2 things without draining the battery. Blower and lights, radio and lights, blower and radio, etc. no combination. Can only run one thing at a time to not drain the battery. Any thoughts how to correct this issue?
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Russ
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