LiFePO4 Batteries

I have never understood why Noco doesn't make an Anderson connector adapter for their chargers. They have SAE adapters and others, but no Anderson.
 
Finally pulled the trigger. Getting this one off Amazon. $179 and it comes with a charger. Gets great reviews. Supposed to be here no later than 9/15.

FLLYROWER Lithium Battery 12V 100AH With Smart BMS and 17000 Deep Cycles Lifepo4


This will replace the trolling motor battery that came with the Lowe that has 6/2023 on it. 😁 It still takes a charge (Noco even goes green), but it just doesn't cut it. I didn't get much out of it last time out. And it's SO friggin heavy!
Excited for the 22# LifePo4 for the Lowe, but also in the raft. And for camping, storms, etc. I was WAY overdue.
 
I finally used my new 100ah battery this weekend. I was looking for carp. They were few and far between so that meant a lot of time on the battery just cruising along the edges of the bigger flats or going from one flat to the next on the bow mount.
I didn't keep track of the hours, but I would guess about 6 hours total over the 2 days in the boat.
It wasn't like actually trolling, but I was on & off that button all the time.

I just checked it with the app and it's still got 73% left! I'm impressed! The real test will be in about a month when I float a certain river that requires using a trolling motor for the big slow pools, especially if the upstream winds hit. I think this darn thing might last the whole trip! We'll see.
 
I used my 65ah battery for 4 days without charging. I was trolling for the most part - maybe 20 hours total. Lots of charge left. But the best part was the weight of, or lack thereof, of the battery. Good bye AGM and lead batteries!
 
I used my 65ah battery for 4 days without charging. I was trolling for the most part - maybe 20 hours total. Lots of charge left. But the best part was the weight of, or lack thereof, of the battery. Good bye AGM and lead batteries!
Best day ever when I got rid of that size 27 AGM , and went with the Lifepo4 .
 
I have been running 3 separate electrical systems in my boat for 3 years now. Very happy with how it has been performing. My Ulterra is 24 volt and has 2) 100AH Lifepo4 batteries from Amazon. They have worked great. My engine and the electrical of the boat (how the factory wired it) has a lead cid deep cycle. This battery only gets charged from the engine. The 3rd system is for the fish finders (2), hummingbird hub and some usb accessory ports I added. The electronics system has a 50 AH Lifepo4. The 3 lifepo4 batteries are charge from a single Noco 3 bank charger that has a single 110v power inlet plug on it. I have tried having the electronics on the chassis battery and tried having hem attached to the trolling motor batteries. I was unhappy with both situations and like them isolated.
 
Great thread. I’m looking at a LiTime system to replace my group 27 Lead acid battery for a Minn Kota 55 lb thrust infinite speed motor.
  • LiTime 100ah 12v mini battery
  • LiTime portable battery box
  • LiTime 12v 20A charger
Am I missing anything to swap into current tech?
 
Great thread. I’m looking at a LiTime system to replace my group 27 Lead acid battery for a Minn Kota 55 lb thrust infinite speed motor.
  • LiTime 100ah 12v mini battery
  • LiTime portable battery box
  • LiTime 12v 20A charger
Am I missing anything to swap into current tech?
Prepare to be amazed. ;)
 
Great thread. I’m looking at a LiTime system to replace my group 27 Lead acid battery for a Minn Kota 55 lb thrust infinite speed motor.
  • LiTime 100ah 12v mini battery
  • LiTime portable battery box
  • LiTime 12v 20A charger
Am I missing anything to swap into current tech?
You could, if you wanted to, even get away with a smaller 50-60ah battery for that size motor. But if money or space isn't a blocker, always better to have more amp hours.

I've run multiple different 50-55 lb motors with this 12v 50ah 11.5lb LiTime battery:

1772500920848.png
Here's Minn Kota guidelines for Lithium battery a/h size. I suspect it's already been posted in this thread, but no reason not to post it again.

1772501156457.png
 
You could, if you wanted to, even get away with a smaller 50-60ah battery for that size motor. But if money or space isn't a blocker, always better to have more amp hours.

I've run multiple different 50-55 lb motors with this 12v 50ah 11.5lb LiTime battery:

View attachment 179392
Here's Minn Kota guidelines for Lithium battery a/h size. I suspect it's already been posted in this thread, but no reason not to post it again.

View attachment 179393
Good stuff. My reasoning was the 100ah batteries seem to be a sweet spot in footprint/weight/amps trade off. I’ll be able to run my motor 2-3 days.
 
You could, if you wanted to, even get away with a smaller 50-60ah battery for that size motor. But if money or space isn't a blocker, always better to have more amp hours.

I've run multiple different 50-55 lb motors with this 12v 50ah 11.5lb LiTime battery:

View attachment 179392
Here's Minn Kota guidelines for Lithium battery a/h size. I suspect it's already been posted in this thread, but no reason not to post it again.

View attachment 179393
You can run any of those motors with 50ah, just not for as long as a 100ah. I believe that chart is best used to help one size wire and fuse requirements and not battery amp hours. If you are using a PWM either as built in with the motor as the newer ones have them, or as an add on between battery and motor, those amps will be at top speed. The older motors, or the cheaper models, do pull a continuous discharge amperage at all speeds. Hence the use of a PWM to conserve amperage draw from the battery.
 
I wanna join the fun. I'd love to replace my trolling motor battery with a 100ah.

Would that battery also work well in my small travel trailer? I have a blue top battery in there now and it last about 2 days (or so). Fridge, stove, heater, water heater are propane but lights and all the controls are DC.

Should I get a LIFEPO for that?
 
You can run any of those motors with 50ah, just not for as long as a 100ah. I believe that chart is best used to help one size wire and fuse requirements and not battery amp hours. If you are using a PWM either as built in with the motor as the newer ones have them, or as an add on between battery and motor, those amps will be at top speed. The older motors, or the cheaper models, do pull a continuous discharge amperage at all speeds. Hence the use of a PWM to conserve amperage draw from the battery.
I guess I just like the 50ah lithium size as a really good middle ground, especially for smaller boats. Enough power to run the motor as much as most folks would ever need, but also still a compact size and light weight.
 
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