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#12384344 - 08/13/17 11:21 AM What will solve this issue?...
i-Fish Offline
Angler

Registered: 06/07/16
Posts: 324
Spent a good 10 hours on the water Thursday with no issues. Charged the batteries as soon as I got home. Wasn't fully charged when I took off for the lake the next morning and the batteries pooped out on me after about 7 hours and had to get jumped. Cranking and the 2 accessory batteries. Batteries are about 3 years old so I'll be replacing them soon BUT was wondering if going from a 2 bank to a 3 bank would eleviate that issue going forward?...

Also be upgrading to most likely a 36 volt TM in the coming months if that makes a difference.
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#12384352 - 08/13/17 11:32 AM Re: What will solve this issue?... [Re: i-Fish]
javelin150 Offline
Pro Angler

Registered: 03/19/06
Posts: 850
Loc: Waco, TX
Each battery should be fully charged before going out on the water. Get a charger that will charge all of your batteries at once. The higher amperage chargers will charge your batteries quicker.

When you replace your batteries, get the biggest you can afford and you might want to take a look at agm style batteries. The have a lower discharge rate and higher charge retention over lead acid batteries.

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#12384356 - 08/13/17 11:33 AM Re: What will solve this issue?... [Re: i-Fish]
javelin150 Offline
Pro Angler

Registered: 03/19/06
Posts: 850
Loc: Waco, TX
Also if you get a 36 volt tm system it will be easier on the batteries than a 24v setup. The 36v system is more efficient. If you plan to get a 36v system soon, get a 4 bank battery charger

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#12384372 - 08/13/17 11:45 AM Re: What will solve this issue?... [Re: i-Fish]
i-Fish Offline
Angler

Registered: 06/07/16
Posts: 324
4 bank? I may stick with 24v and bump up to 80 pounds in that case. Save a little coin and the current 70lb TM does a pretty good job even in windy conditions. 80lb should be a nice improvement.

I heard about dudes using tractor batteries as their cranking battery?...
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#12384382 - 08/13/17 11:55 AM Re: What will solve this issue?... [Re: i-Fish]
Capt Craig Online   content
Extreme Angler

Registered: 08/25/09
Posts: 1403
Loc: Richland-Chambers
Each battery onboard should have its own changing bank. 3 batteries = 3 banks or 4 batteries = 4 banks. Using a built-in charger like Minn Kota's 460 will do a great job or keeping the batteries charged as well as maintaining. I leave mine connected every day.
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Licensed by the US Coast Guard

2013 Nautic Star 2110 Shallow Bay Boat
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#12384405 - 08/13/17 12:19 PM Re: What will solve this issue?... [Re: i-Fish]
javelin150 Offline
Pro Angler

Registered: 03/19/06
Posts: 850
Loc: Waco, TX
Get a tm that is digital. All new 80lb tm will be digital. Get a 3 bank charger to charge all the batteries and get you some agm style batteries. You should be good to go with that setup. When selecting batteries, get at least a size 27 or larger

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#12384424 - 08/13/17 12:40 PM Re: What will solve this issue?... [Re: i-Fish]
i-Fish Offline
Angler

Registered: 06/07/16
Posts: 324
Ok. So, the boat I bought has a 3 batteries but a 2 bank charger. I figured that the cranking battery doesn't necessarily require a charge and that the 2 banks just charges the DC batteries. Not sufficient enough?
_________________________
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#12384460 - 08/13/17 01:16 PM Re: What will solve this issue?... [Re: i-Fish]
forkduc Offline
TFF Guru

Registered: 03/28/07
Posts: 11240
Loc: Plano,Texas
Go 3 bank

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#12384463 - 08/13/17 01:18 PM Re: What will solve this issue?... [Re: i-Fish]
forkduc Offline
TFF Guru

Registered: 03/28/07
Posts: 11240
Loc: Plano,Texas
Correct,all 3 batteries need to be charged. In the short term,put another charger on the cranker.

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#12384471 - 08/13/17 01:25 PM Re: What will solve this issue?... [Re: i-Fish]
Curtbass Offline
Extreme Angler

Registered: 04/17/15
Posts: 1062
Loc: Grand Prairie, Tx
Before you put an AGM cranking battery on, what motor are you running? If you have a stator/voltage regulator type charge system an AGM battery can be a costly mistake. AGM's take charge slower & it can fryout a voltage regulator/stator & actually cause an engine fire. If you're running a newer motor with an alternator style charging system you'll be ok with AGM battery.
For plug in charging
3 batteries = 3 bank charger
4 batteries =4 bank charger
_________________________
'98 Tr20 Triton completly updated & rigged, 05 Magnum c-channeltrailer
'94 Merc 200Xri completly rebuilt & noseconed/low water pickup lower unit.

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#12384595 - 08/13/17 03:22 PM Re: What will solve this issue?... [Re: i-Fish]
javelin150 Offline
Pro Angler

Registered: 03/19/06
Posts: 850
Loc: Waco, TX
Agm batteries actually charge quicker than lead acid batteries.

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#12384796 - 08/13/17 06:42 PM Re: What will solve this issue?... [Re: Curtbass]
i-Fish Offline
Angler

Registered: 06/07/16
Posts: 324
Originally Posted By: Curtbass
Before you put an AGM cranking battery on, what motor are you running? If you have a stator/voltage regulator type charge system an AGM battery can be a costly mistake. AGM's take charge slower & it can fryout a voltage regulator/stator & actually cause an engine fire. If you're running a newer motor with an alternator style charging system you'll be ok with AGM battery.
For plug in charging
3 batteries = 3 bank charger
4 batteries =4 bank charger


I'm running a Merc 150 Pro XS Optimax
_________________________
If you can't find em wind em.

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#12384803 - 08/13/17 06:51 PM Re: What will solve this issue?... [Re: i-Fish]
javelin150 Offline
Pro Angler

Registered: 03/19/06
Posts: 850
Loc: Waco, TX
You can get a lead acid battery or a agm for that motor. You wont have issues running either. Make sure you get one with at least 750 cca

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#12384865 - 08/13/17 07:41 PM Re: What will solve this issue?... [Re: javelin150]
i-Fish Offline
Angler

Registered: 06/07/16
Posts: 324
Originally Posted By: javelin150
You can get a lead acid battery or a agm for that motor. You wont have issues running either. Make sure you get one with at least 750 cca


Roger that! I've seen those Optima blue top batteries around. Are they worth the extra few bucks? Otherwise, I work for Costco and we sell Interstate marine batteries for a reasonable price.
_________________________
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#12385006 - 08/13/17 09:15 PM Re: What will solve this issue?... [Re: i-Fish]
Curtbass Offline
Extreme Angler

Registered: 04/17/15
Posts: 1062
Loc: Grand Prairie, Tx
You're good to go. If you work at Costco by all means get those batteries. I check electrolyte level in mine on a monthly basis, remove & clean all terminal connections, use nut (not wing-nuts) on terminal posts. I plug mine in as soon as I get in from fishing & leave them plugged in as my charger goes into maintenance mode after charge is full. I run a 94'Merc 200 Xri (stator/voltage regulator) with a (cranking) 31 class wet cell lead acid battery that runs all electronic graphs, aerators, bilge, & lights. I ALSO carry a Weego emergency battery jumper( small & about $100).

For Minnkota Fortrex 80# 24V Trolling motor=batteries are 2 Exide 31 class AGMS with 1110 cranking amps,& 200 reserve minutes, i never have ran out of juice even on all day high wind days. I get at least 4 years service out of mine usually. Im happy with that.
It all turns into the Chevy/Ford/Dodge debate when battery choices are asked about. These Exides would be a great choice for your application all the way around.
Look for the highest reserve capacity minutes for TM, buy what you can afford & fish as much as you can.
_________________________
'98 Tr20 Triton completly updated & rigged, 05 Magnum c-channeltrailer
'94 Merc 200Xri completly rebuilt & noseconed/low water pickup lower unit.

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