camillj Posted September 27, 2012 Report Share Posted September 27, 2012 (edited) Hi Folks ... I know there have been many discussions around this ... but ... I think my scenario is a little different and was wondering if any of you smart folks have a 'best' scenario (that doesnt involve me having to cart a group 31 battery off the boat to recharge it. Anyhow here are the basic parameters : Fiberglass hull (Pioneer 197) - dual console Boat is moored (in the water) in a marina all season (March til Oct) and gets stored in the winter. My rented slip does not have access to power ( so running a trickle charger overnight isn't feasible unless i took the battery off the boat) It has a 150 Yamaha 4 stroke and came equipped with a single 12V battery. The console is equipped with 'cigarette lighter' adaptor which I use for running) GPS/Sonar etc. I don't use a trolling motor on the boat ... but I do run my stereo and GPS while 'trolling' (which is my preferred fishing mode) It's a pretty big lake ... so 'running' at 20-30mph for 20-30 minutes per trip is common. I bought a separate (totally isolated) group 31 deep cycle battery (and a weather resistant case) specifically to run my Cannon Magnum 10 STX electric downrigger(s) without risking drain on the cranking battery. I haven't charged it since it went on the boat two months ago- mostly because it doesnt appear to need it - I currently only have one downrigger hooked up - but I KNOW I should keep it charged up and would like a more 'permanent' setup that won't harm the motor's charging system or risk frying any of the other electronics on the boat. Also I know there is some issue about charging a deep cycle vs cranking battery ... Anyhow looking for some guidance .... cost is not the priority ... convenience and reliability and safety (mine and the equipment) are most important Anyhow love to know what you guys with the 'proper' rigs have done to make it work. Thanks Jon. oh ... and just to juice it up a bit .. here's a little 43" personal best caught last week 21' down in 29 ft of water on a 6" Williams at 1.8 MPH (about 600 rpm) ... Edited September 27, 2012 by camillj Link to comment Share on other sites More sharing options...
Terry Posted September 27, 2012 Report Share Posted September 27, 2012 you need one of these or one like it http://www.powerstream.com/battery-isolator.htm 12 volt Smart Battery Isolator it will charge your battery when your motor is running but isolate it from the other battery and your system the battery might only last 5 years instead of 7 but it's a good trade off Link to comment Share on other sites More sharing options...
BillM Posted September 27, 2012 Report Share Posted September 27, 2012 I both both my Scotty 1106's off the main battery in the back (Along with the Yamaha 115 and T8 kicker) No issues. Link to comment Share on other sites More sharing options...
krixxer Posted September 27, 2012 Report Share Posted September 27, 2012 The 150 has a 35A alternator, if you like trolling the big lake you don't need the extra battery. I like to run a cutoff switch to prevent any drainage..... About the big batteries..... how heavy is a 31? whatever it is I don't like lifting them. I opted out for 3 small Link to comment Share on other sites More sharing options...
John Bacon Posted September 28, 2012 Report Share Posted September 28, 2012 If you haven't had to charge your deep cycle for two months than I don't think you need to worry about the down rigger draining the main battery while your main motor is running... I just run the down rigger off the main battery. Link to comment Share on other sites More sharing options...
camillj Posted September 28, 2012 Author Report Share Posted September 28, 2012 OK .. thanks guys ... I actually originally bought the group 31 for my Minn Kota (which I only use in Quebec) ... alongside a 9.9 Seahorse ... when i bought the Cannon the guys at Sail told me NOT to run it off the cranking motor ... so onto the boat it went ... and yes it is HEAVY .. so there it remains ... I kinda like having the 'backup' as I do run many miles up and down the 'big' lakes in Muskoka and I really hate the idea of having to call in to the marina for help (grew up fishing on Lake O with CB and VHF ... to much time spent responding to 'distress' calls ... never wanna be that guy ) I think I like the idea of having the smart battery isolater ... of course there is no getting around taking the batteries off the boat in the winter but at least that's just once a year Link to comment Share on other sites More sharing options...
glen Posted September 29, 2012 Report Share Posted September 29, 2012 Everyone else is running the riggers off of the main power My motet only puts out 10amps but I have never had a problem I use my deep cycle for trolling motor only. But it is there if I need to use it for an emergency main battery Link to comment Share on other sites More sharing options...
glen Posted September 29, 2012 Report Share Posted September 29, 2012 Your carrying around an extra battery incase your main battery quits working. You may be better served by a portable battery booster You may be Link to comment Share on other sites More sharing options...
glen Posted September 29, 2012 Report Share Posted September 29, 2012 Your carrying around an extra battery incase your main battery quits working. You may be better served by a portable battery booster You may be Link to comment Share on other sites More sharing options...
glen Posted September 29, 2012 Report Share Posted September 29, 2012 Double post sorry Link to comment Share on other sites More sharing options...
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