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Trolling motor Battery Suggestions

Old 10-22-2020, 06:57 AM
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Default Trolling motor Battery Suggestions

Looking at replacing my 3 AGM bats with Lithium for my 36 volt Minn Kota Motor (52 amps max draw). Looking at either going with the LBP 36v trolling motor kit (36v 60ah) or 3 of the Dakota Lithium LifePO4 (12v 100ah) batteries and wiring them in series for 36 volts. I use my motor mainly for spot lock offshore on a 23 ft CC. I understand that the 3 LifePO4 will give me longer run time but really looking at removing some weight off the boat. Also I have thought about an onboard charger that runs off engine to keep bats topped off on the run, but I currently have the blue seas ACR and not sure how all that would work together. Thanks for any feed back or first hand knowledge with this.
Old 10-22-2020, 07:56 AM
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Originally Posted by Screaming Reels View Post
Looking at replacing my 3 AGM bats with Lithium for my 36 volt Minn Kota Motor (52 amps max draw). Looking at either going with the LBP 36v trolling motor kit (36v 60ah) or 3 of the Dakota Lithium LifePO4 (12v 100ah) batteries and wiring them in series for 36 volts. I use my motor mainly for spot lock offshore on a 23 ft CC. I understand that the 3 LifePO4 will give me longer run time but really looking at removing some weight off the boat. Also I have thought about an onboard charger that runs off engine to keep bats topped off on the run, but I currently have the blue seas ACR and not sure how all that would work together. Thanks for any feed back or first hand knowledge with this.
The Yandina Lithium compatible Trollbridge 36 will charge the 3 X 12 volt trolling batteries from your alternator making you nearly independent of shore power charging. It is not compatible with a 36 volt battery.
Old 10-22-2020, 07:59 AM
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LBP has been amazing for me. I get 3 trips minimum out of my 36v single. Last trip was 6hrs inshore on the TM and it’s at 74%. Charges in 3hrs from dead. It’s a game changer. The thrust is amazing. The LBP support is even better! Nick has always answered any of my questions fast and very good company. Their stock pile/supply is the best in the business aswell.


Old 10-22-2020, 03:28 PM
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Wow, just looked at the prices of the LBP 24v 75 amp hour single battery and the 2 12v 100 amp hour batteries from Dakota! I love the idea of dropping some weight and saving some space along with longer battery life, but man are those systems $$$! $2000 for a battery, charger and a digital voltage gauge seems to be a bit high. For those of you who have made the investment in this type of battery system, are they really worth the extreme difference in cost? Of course there are those that would look at going to the Ulterra over the Terrova similarly.

I definitely see a benefit of the smaller foot print of the single 24v battery offered by LBP as well as the reduced weight. I would be using a 24v system on a 19 ft Carolina Skiff LS with either the batteries in the bow or back at the console powering a Minn Kota Ulterra 80 lb of thrust. I plan on using it in south Texas lakes and at the Texas coast, probably mainly used for things like spot lock and some trolling.

thanks
teddychk
Old 10-23-2020, 05:31 AM
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Originally Posted by Teddychk View Post
Wow, just looked at the prices of the LBP 24v 75 amp hour single battery and the 2 12v 100 amp hour batteries from Dakota! I love the idea of dropping some weight and saving some space along with longer battery life, but man are those systems $$$! $2000 for a battery, charger and a digital voltage gauge seems to be a bit high. For those of you who have made the investment in this type of battery system, are they really worth the extreme difference in cost? Of course there are those that would look at going to the Ulterra over the Terrova similarly.

I definitely see a benefit of the smaller foot print of the single 24v battery offered by LBP as well as the reduced weight. I would be using a 24v system on a 19 ft Carolina Skiff LS with either the batteries in the bow or back at the console powering a Minn Kota Ulterra 80 lb of thrust. I plan on using it in south Texas lakes and at the Texas coast, probably mainly used for things like spot lock and some trolling.

thanks
teddychk
I went through the same roller coaster -- great idea to have the lower weight and power density of lithium but unless you have an extremely light flats boat where even a small added weight might be noticeable, I can't see how it could make any sense at all to spend three or four times as much to get the same storage capacity as high quality AGM batteries. I have gotten 6-7 years of use out of AGMs used as starting and house batteries. Far better in real life to spend a little more on bigger AGM batteries that can run longer between charges.
Old 10-23-2020, 05:49 AM
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Originally Posted by Nomans View Post
I went through the same roller coaster -- great idea to have the lower weight and power density of lithium but unless you have an extremely light flats boat where even a small added weight might be noticeable, I can't see how it could make any sense at all to spend three or four times as much to get the same storage capacity as high quality AGM batteries. I have gotten 6-7 years of use out of AGMs used as starting and house batteries. Far better in real life to spend a little more on bigger AGM batteries that can run longer between charges.
That is pretty much my thought on the matter as well. I can buy many batteries for the cost of these. Buying them on a CC that extends the warranty a couple yrs seems to provide a more economical situation for my particular needs.

That being said, there is the benefit of a single 24v battery when it comes to space. I guess I will need to wait until my boat actually comes in to see where and how I can actually mount the batteries for best weight distribution and to take advantage of the limited storage space a 19 ft boat will afford me.

I really can not wrap my head around $2K for a battery and charger. But then again, my dad does not understand why I want a self deploying trolling motor with spot lock...
Old 10-23-2020, 06:12 AM
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I recently installed Rhodan 36 volt trolling motor and went with lithium. I have 3 12 volt 60 ah LiFePO4 from Amped Outdoors. I figured at $359 a battery delivered I would take a chance. So far 4 trips in it has worked great. I am spot locking wrecks in New Jersey (28' CC) and they been lasting all day. The spaced saved and only 14 lbs each was what sold me. I remove my batteries for winter storage so didn't want to deal with 3 more 70 lb batteries. I have power at dock so have a Minn Kota Precision on board charger I plug in overnight and ready to go next morning.
Old 10-23-2020, 06:32 AM
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Lithiumpros I have their 36v battery and been very pleased. One battery takes up less space and weighs 33 pounds if I remember correctly. I use the stealth charging system. It charges from one of the cranking batteries. I have an onboard charger so when plugged in after the cranking battery is 100% it charges the lithium. It also will charge while the boat is running. I’ve never run out of juice in the year and a half I’ve had it. 23 world cat 72” minn Kota
Old 10-23-2020, 06:58 AM
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You will not reap the benefits of the Blue Seas ACR between a lead acid and lithuim. When a lithuim is at 100% SOC (State of Charge) the voltage will be anywhere from 13.4 to 14.4. An ACR parallels at either at 13V at 90 seconds or 13.6V at 30 seconds. So your lithuim will “drain” back into your lead acid until your lithuim gets down to 12.75V. The ACR will open at that point.

There are certainly pros and cons to every battery chemistry out there. As well as personal opinions. If you go lithuim, do it right and open up that wallet. followed by profusely apologizing to the wife.
Old 10-23-2020, 08:06 AM
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Originally Posted by Teddychk View Post
That is pretty much my thought on the matter as well. I can buy many batteries for the cost of these. Buying them on a CC that extends the warranty a couple yrs seems to provide a more economical situation for my particular needs.

That being said, there is the benefit of a single 24v battery when it comes to space. I guess I will need to wait until my boat actually comes in to see where and how I can actually mount the batteries for best weight distribution and to take advantage of the limited storage space a 19 ft boat will afford me.

I really can not wrap my head around $2K for a battery and charger. But then again, my dad does not understand why I want a self deploying trolling motor with spot lock...
I think I have decided to go with the Duracell Ultra Platinum AMG 31M (SLI31DTMAGMDC) at $244.99 each, plus core charge from BatteriesPlus for the TM batteries. Battery has a 30 month free replacement, but should be able to take that out to 54 months with my CC extended warranty plan.

Just so I have everything running on a single battery type, I am going to use the Duracell Ultra Platinum AMG 27M (SLI27MAGMDC) at $219.88 each plus core charge for the starting and house battery. Same warranty.

Batteries plus has a 15% off code right now on contactless curbside pickup (CDP14463)

All 4 batteries with core charge (I don’t have any old batteries to trade in) and sales tax comes out to $953.10

2 Group 31 batteries = $489.98
2 Group 27 batteries = $439.98
Core deposits on 4 batteries = $90.00
Sales Tax= 72.64
15% Discount = $139.50
Total for all = $953.10

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