Battery Load of Trolling Motor and Bait Tank

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Author Topic:   Battery Load of Trolling Motor and Bait Tank

REM_Tied posted 02-12-2008 07:22 PM ET (US)
I am planning some upgrades to my 2004 Montuak while the weather is cold here in Maryland. I am trying to get some feedback on battery needs. I have been reading up on [voltage sensitive relays] and have been through some of the excellent information in the small boat electrical forum. I want to make the question as simple as possible. Any complicated answers are welcome though.
I am going to add a trolling motor and a bait tank to my boat. I haven't decided on the 12V or 24V set up for the T-Motor yet.
Can I successfully use just one additional 12V Deep Cycle house battery for both my trolling motor and the bait tank? (This will be a total of 2 batteries only). I will install a BEP or Blue Sea VSR to keep both batteries as charged as possible.
I see a lot of folks with a two battery setup with a VSR but I can not locate info on this setup being sufficient. The above 2 battery setup assumes a 12V Trolling Motor.
Richard
Nauti Tauk posted 02-14-2008 08:37 AM ET (US)
I just finished installing a MinnKota RT55/sp/cp/ap on our 2003 Montauk.(90 4s)Unless you're fishing in really strong tides or winds the 12volt will be plenty. I added a deepcycle battery just for the trolling motor and also the MinnKota VSR.(use a series 27 or 31 battery) I Striper fish with a 20 gallon KeepAlive bait well which is wired with a cigarette lighter plug and uses the accessory dash plug for power. my Sonar/chartplotter and VHF also run off power from my cranking battery. I've never had any issues with the motor having plenty of power to start. The VSR seems to "top off" the batteries pretty well when I have a long enough run to let it work for a while. 20 to 30 minutes at cruise 4000-4400Rpms brings up the deepcycle jsut about full if I haven't trolled too long.Hope this helped.
jenkinsph posted 02-15-2008 01:24 AM ET (US)
You can go with a 12 volt trolling motor as indicated in above post or have a 2 battery setup with a 24v trolling motor. I started out for the first three years using two deepcycle batteries in series with a dual bank charger and found that I could use the trolling motor for a long period of time with no problems. While running the outboard it is charging the main battery and seems to keep
it in good shape. This year I am adding a smaller group 24 battery for starting only.
Yandina makes combiners that will charge the 24 volt banks using the engine while running and this can also extend you day on the water, about $150 or so.
That said you can go with 12 or 24 volt trolling motor and have more choices. I use a battery condition display and keep an eye on it to keep from depleteing the batteries to far.
Steve
jimh posted 02-21-2008 10:30 PM ET (US)
This discussion belongs in SMALL BOAT ELECTRICAL.

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Author	Topic: Battery Load of Trolling Motor and Bait Tank
REM_Tied	posted 02-12-2008 07:22 PM ET (US) I am planning some upgrades to my 2004 Montuak while the weather is cold here in Maryland. I am trying to get some feedback on battery needs. I have been reading up on [voltage sensitive relays] and have been through some of the excellent information in the small boat electrical forum. I want to make the question as simple as possible. Any complicated answers are welcome though. I am going to add a trolling motor and a bait tank to my boat. I haven't decided on the 12V or 24V set up for the T-Motor yet. Can I successfully use just one additional 12V Deep Cycle house battery for both my trolling motor and the bait tank? (This will be a total of 2 batteries only). I will install a BEP or Blue Sea VSR to keep both batteries as charged as possible. I see a lot of folks with a two battery setup with a VSR but I can not locate info on this setup being sufficient. The above 2 battery setup assumes a 12V Trolling Motor. Richard
Nauti Tauk	posted 02-14-2008 08:37 AM ET (US) I just finished installing a MinnKota RT55/sp/cp/ap on our 2003 Montauk.(90 4s)Unless you're fishing in really strong tides or winds the 12volt will be plenty. I added a deepcycle battery just for the trolling motor and also the MinnKota VSR.(use a series 27 or 31 battery) I Striper fish with a 20 gallon KeepAlive bait well which is wired with a cigarette lighter plug and uses the accessory dash plug for power. my Sonar/chartplotter and VHF also run off power from my cranking battery. I've never had any issues with the motor having plenty of power to start. The VSR seems to "top off" the batteries pretty well when I have a long enough run to let it work for a while. 20 to 30 minutes at cruise 4000-4400Rpms brings up the deepcycle jsut about full if I haven't trolled too long.Hope this helped.
jenkinsph	posted 02-15-2008 01:24 AM ET (US) You can go with a 12 volt trolling motor as indicated in above post or have a 2 battery setup with a 24v trolling motor. I started out for the first three years using two deepcycle batteries in series with a dual bank charger and found that I could use the trolling motor for a long period of time with no problems. While running the outboard it is charging the main battery and seems to keep it in good shape. This year I am adding a smaller group 24 battery for starting only. Yandina makes combiners that will charge the 24 volt banks using the engine while running and this can also extend you day on the water, about $150 or so. That said you can go with 12 or 24 volt trolling motor and have more choices. I use a battery condition display and keep an eye on it to keep from depleteing the batteries to far. Steve
jimh	posted 02-21-2008 10:30 PM ET (US) This discussion belongs in SMALL BOAT ELECTRICAL.