Question about Garmin Minn Kota MK 440 On-Board Charger CHARGERS

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Hello, I have a Minn Kota 440 4 Bank Charger. I recently heard it spark when I plugged into my 115V AC power source. Since then I have no charging light indicator and no actual charging occuring. I tried reseting power source today and as I plugged it into 115V I heard a sizzle sound. I have checked all connections including 115V power and everything appears to be correct and in tact. I am still getting correct voltage from batteries to motor but draining fast. I am afraid I have a short in the 440 charging unit...... Any advice would be greatly appreciated. Brad

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Hello Brad / Colee

The voltage converter in the charger has gone out (violently). Do not use this charger in your craft anymore. There is no longer any kind of guarantee of isolation, and galvanic corrosion may be accelerated if the boat is sitting in the water and you try to charge batteries.

Replace the charger. Your craft and your lives aren't worth the risk. You can try contacting Minn Kota to see if there might be some kind of warranty assistance.

Posted on Aug 31, 2010

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