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#12476924 - 10/24/17 09:14 AM Battery Question
SlowDown Offline
Extreme Angler

Registered: 09/20/08
Posts: 2111
Loc: Texas
I have a deep cycle battery for my Minnkota 50-lb thrust trolling motor. Can I use a cranking battery that was in my car for a back-up trolling motor battery, in case I drain the regular battery?

#12476940 - 10/24/17 09:24 AM Re: Battery Question [Re: SlowDown]
javelin150 Offline
Pro Angler

Registered: 03/19/06
Posts: 871
Loc: Waco, TX
As a back up battery it would work.

#12476983 - 10/24/17 10:01 AM Re: Battery Question [Re: SlowDown]
Bob Landry Online   content
Extreme Angler

Registered: 08/10/11
Posts: 2662
Loc: Austin, Tx
For a trolling motor, no, it will not. A cranking battery is nothing more than an automotive battery. The plates won't hold up and after very few deep discharges, it will be toast.
You should not be using the battery you depend on to start your motor to run the trolling motor. Spend a few bucks and do it the right way.

Edited by Bob Landry (10/24/17 10:03 AM)
2015 Seaark 1872 MV CC Etec-90
Two Helix 12 CHIRP SI's, , MinnKota Riptide ST80/i-pilot Link, Bob's Hydraulic
2018 Robalo R180 CC, Yamaha 115

Bitter Gun Owner
Bitter Clinger
Armed Infidel

#12477099 - 10/24/17 11:14 AM Re: Battery Question [Re: SlowDown]
SlowDown Offline
Extreme Angler

Registered: 09/20/08
Posts: 2111
Loc: Texas
Bob, all I need is a second battery for my 10’ Pelican Bass Raider to get me back to the launch if my deep cycle trolling motor ever runs down before I get back. The boat is powered only by a trolling motor.

A second thing is that deep cycle batteries are so heavy to lift in and out of the boat, which I have to do every time I use this little boat. (I’m no longer young and strong.)

The battery in my car still works, but is a few years old, so I’m going to get a new one before it eventually dies and leaves me stranded. Hope this sheds a little more light on what I’m trying to do.

#12477259 - 10/24/17 01:41 PM Re: Battery Question [Re: SlowDown]
sae Online   content

Registered: 06/12/17
Posts: 57
Yes it will do for a backup not as a full time troller.

#12477548 - 10/24/17 06:10 PM Re: Battery Question [Re: SlowDown]
SlowDown Offline
Extreme Angler

Registered: 09/20/08
Posts: 2111
Loc: Texas
Thanks for the reply sae. It will probably never get used, but will give me peace of mind.

#12477988 - 10/25/17 01:19 AM Re: Battery Question [Re: SlowDown]
Curtbass Online   content
Extreme Angler

Registered: 04/17/15
Posts: 1164
Loc: Grand Prairie, Tx
Once you get your new battery for the vehicle, sure, why not. You paid for it. May as well "git ALL the goody out of it". Stay safe out there.
'98 Tr20 Triton
'94 Merc 200Xri
HydroDynamics 10" JP
Tempest Plus 25P-B&B @Steves Custom Props-Josh Edwards

92' ChampioN 201DCR Elite
13' Yamaha250SHO
HB Helix12 G2N
HB Helix10 G2N

#12478118 - 10/25/17 08:19 AM Re: Battery Question [Re: SlowDown]
Jones Trolling Motor Offline

Registered: 05/01/11
Posts: 498
Loc: NE Texas/SW Arkansas
Since it is a back and shouldn't be deeply discharged when used only in emergency situations, you will be fine. If you use it to finish out the day and discharge it over 50%, then it will considerably shorten it's life. The difference in Marine and Automotive is plate support and thickness of plates. I doubt you'll be out on a trolling motor only powered craft in waves that will beat the battery up.
texarkana, Ark/Tx


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