- Joined
- Feb 18, 2009
- Messages
- 2,247
- Reaction score
- 2,066
- Location
- Perrysburg Ohio
- LOCATION
- Perrysburg Ohio
Retired tool maker here with only basic electrical knowledge so looking for expertise. Recently discovered a parasitic electrical draw on my house batter in my aluminum boat. Battery held charge all winter being disconnected and was new last early fall. Hooked everything back up getting ready for summer season and noticed the battery dropping charge within a week or two. Added a disconnect switch and batter holds as long as disconnected.. While booking things back up I noticed a small spark when my wrench on the neg post touched the hull. Used my meter and with neg lead in neg post and pos lead touching hull I am getting my battery voltage on the meter. If I put the red lead on pos post and neg lead on the hull...nothing... Tried unhooking accessory leads one at a time and recheck with no change until all accessory leads were disconnected then the 12.8 v reading went away ...started hooking up accessory leads back on one at a time, no change until all leads were back on and the 12.8 shows up again off the hull. Not sure where to check from here !
All accessories work fine, radio, SS radio, fish finder, lights, bilge pump etc, no issues. The switch will stop the battery from dropping, but why am I getting a 12.8v reading between neg post and hull ?? Or...am I looking for a problem that isn't there ? Any suggestion would be greatly appreciated, thanks.....
All accessories work fine, radio, SS radio, fish finder, lights, bilge pump etc, no issues. The switch will stop the battery from dropping, but why am I getting a 12.8v reading between neg post and hull ?? Or...am I looking for a problem that isn't there ? Any suggestion would be greatly appreciated, thanks.....