New trolling battery’s

[slingshot]

What’s everyone’s preference on running two 12 volt marine batteries.My boat came with two interstates 2013 so I guess I’m due.All suggestions will be appreciated .its dam hard putting them in this tyee

[dsoucy]

I run 2 6v deep cycle 6 to 8 hours of trolling depending on wind and speed

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[opto55]

I was wondering if I should try 2 12 volt deep cycle hooked up parallel or 2, 6 volt deep cycle golf batteries hooked up in series to achieve maximum trolling time? My trolling motor is a 12 volt Minn Kota 55 model. How long would they last? I realize it is dependent on your trolling speed. I do troll slow ay Maligne lake.
Thanks

[Drewski Canuck]

Opto

The idea of individual batteries for Maligne is better. You go down on one, come back on the other. Leave the bigger, fully charged for the return trip so you do make it back to the launch.

If something happens on the 2 - 6 volt batteries, or you go down further than you thought, when they die, you are rowing unless you are carrying more batteries!!!

Anyway, I just replaced a deep cycle group 27 battery at Costco for about $115. The 6 volt batteries at Costco were about $120 each, and the 6 volts did not give a reserve capacity so pretty hard to compare apples to apples.

Drewski

[Freddydog]

6 volt batteries are made with a higher cycling capacity to them. This means if you regularly drain your batteries past 50% 6 volt batteries will last longer. The 12 volt batteries are not made to withstand constant cycling and do better when full. 6 volt batteries have a larger capacity as well when compared to 12 volt batteries.

You also get what you pay for. I would never risk my fishing on Costco batteries. Go to Canadian Energy and buy some premium batteries then you wont have to worry about them pooching out on you like a Costco battery will.

I put two 6 volt batteries I bought at Canadian Energy on my trailer over 8 years ago and they are still going strong.......My two cents.

[haggis57]

Costco batteries have been supplied by Johnson Controls in the past. Johnson will provide any technical information you ask for. Costco 6 vt batteries are rated at 208 Amp-hrs based on information from Johnson.