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Posted

Yes you need a 12 volt deep cycle battery and a charger. Here is the best advice I can give you DON'T BUY A CHEAP BATTERY!!! And unless you have a very small boat buy a more powerful trolling motor as well.

  • Super User
Posted

Get the Everstart size 27 deep cycle battery at Walmart and a 6A-10A automatic charger there also. I agree about getting a more powerful motor. Walmart also carries the 50# thrust transom mount motors. If you will be fishing waters bigger than small farm ponds, you will appreciate the more powerful motor.

Posted

We could use a little more info from you before giving and opinion.  If you have a 10 foot jon boat you might be alright, if you are looking at a 12 or 14 foot hen I would definitely move up to a 40lb thrust or more.  I have a buddy who built a deck on his 12 foot jon boat and installed a 40lb trolling motor.....it hauls butt.  You will need to get a 12 volt deep cycle battery- check wal-mart they actually carry a decent one.  You will need a charger for that battery as well.  Might be able to find one in Wal-Mart or check out a Tractor Supply if you have one near by.  Most of all.......Have fun.

  • Super User
Posted

I've used an old MinnKota 36 lb transome mount motor for about 30 years on 12 and 14' jons and never had any complaints.  Granted, if you're going to be fishing large open spands of water subject to high winds, it might have a problem, but then again, I'd never be on a lake like that with a jon and TM.

Yes, you will also need a battery and those Biggest Yellow batteries at walley world will work just find.  Then go over to their automotive and get you a 10 Amp automatic charger.  A couple of life jackets, a paddle and a throw cushion and you should be good to go.    Might want to add a piece of 3/8" rope and a 18 pound mushroom anchor.  Should be between $250 and $300 by the time you walk back out.

Posted

also get some type of inline fuse or circuit breaker for your tm.

Posted

Way2slow sumed it up nice. No need to spend big bucks.  You'll get plenty of use out of that setup.

  • Super User
Posted

Any 12 volt battery will run the TM but the first time you're a mile from your vehicle and paddling back, you just ain't gonna like.  Plus, you buy a car battery and wonder why it's only lasting about 30 minutes and it's less than a year old.

Deep cycle batteries are design to deliver minimal current of a long duration of time and a built to be relatively deep discharged and recharged a couple of hundred time.

Car batteries are designed to deliver large amounts of current for a short duration of time.  They are not designed to be deep discharged and it doesn't take many deep discharges for them to start going south in a hurry.

There is a lot more involved but this is the short version.

By the way, even in deep cycle batteries, all are not the same.  The difference in price is not always just more the person selling it is going to make.  Also, the smaller the battery, the less time you're going to run it.

One word of caution also.  Even that biggest battery you can get at Walley World will only run that TM on high for about less than two hours, so don't jump on the lake and go cruising or you will be paddling back.

  • Super User
Posted
Get the Everstart size 27 deep cycle battery at Walmart and a 6A-10A automatic charger there also. I agree about getting a more powerful motor. Walmart also carries the 50# thrust transom mount motors. If you will be fishing waters bigger than small farm ponds, you will appreciate the more powerful motor.

I just got that battery and charger this past weekwnd from there.

Posted

The inline circuit breaker will keep you from burning up the motor.  If you get into some weeds or heavy cover or for some reason you get a short in the equipment the inline circuit breaker will pop before it burns the TM up.  You can also get things overlaoded by using too small a gauge wire.  Mine was installed using too small of wire, an inline fuse, and I replaced it two years later after the inline fuse melted and darn near burnt the boat down.  I had no idea until I was listening to others on forums like these.  I changed the wire, added in inline circuit breaker (not a fuse) and now it runs flawlessly.  I also found that my battery charges better and I can run for longer periods of time.  Just my 2 cents.

Posted

You don't NEED a circuit breaker.  Just a safety device.  I don't have one, but I don't run my motor through thick salad or the mud and I have heavy gauge wire.

Posted

You are absolutely right Surfer, you do not NEED a circuit breaker.  Yet for the small cost of adding one versus running the risk of accidentally ruining your TM, it seems like a little bit of insurance at a very low cost.  Cheaper to buy a circuit breaker than it is to buy a new TM.

Posted

Here is a link to a circuit breaker.  Make sure you get a manual reset one so you do not have to wait for it to rest itself after overloading.  To install just run a wire from the positive terminal to the breaker, then run another wire from the other post on the breaker to the device you are wiring.  No need to do anything with the negative battery terminal.  Just run the negative terminal on the battery directly to the trolling motor.  Pretty simple, get some wire connectors to make the connections easier and some heat tape to seal the connections good.  probably cost less than $15 to do it all with shipping and less than 10 minutes.

Not saying you have to do this, but for me it was cheaper than buying a new T.M.

http://www.iboats.com/Resettable_Circuit_Breaker/dm/cart_id.062020380--list_time.1233181349--session_id.607294580--view_id.39690

Posted

According to the Motorguide website where I loked up the manul they recommend a 50 amp.  

Recommendations

Battery Type The recommended battery is a 12-

volt Deep Cycle battery.

Circuit Protection MotorGuide recommends

installing a 50 amp manual-reset circuit breaker in line

with the trolling motor positive leads within (1.8 m) 72

inches of the battery(s). To order a circuit breaker kit,

contact your local Service Dealer, request kit number

MM5870.\

Wire Size For optimum performance, MotorGuide

recommends the use of six (6) gauge (13 mm) wire if

extending existing wire beyond the standard battery

cable supplied with the product.

Bow Plugs For temporary trolling motor

installations, MotorGuide recommends the use of a

quality plug designed for marine applications

Here is the manual link:

http://sites.mercurymarine.com/pls/portal/docs/PAGE/MOTORGUIDE/MOTORGUIDE%20SUPPORT/ONLINE_MANUALS/MANUAL_CONTENT/MM6900%20-%202004%20-%20OWNER'S%20MANUAL_0.PDF

There is also a nice diagram for how to install the battery and the circuit breaker iin the manual.

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