Search results

Date Relevance Most replies

  1. luvxu

    Have anyone tried using 4S Lipo on a 12V trolling motor?

    I recently modified the trolling motor to be PWM controlled. What's a difference in battery does that make! I am now able to extend the battery to 2-3 times compared to the original motor. I started with the Motoguide 30lb. Opened up the motor header and cut away the rotary switch to make room...
  2. luvxu

    Have anyone tried using 4S Lipo on a 12V trolling motor?

    wow, the price of $135.99 new for a 24V 86lbs motor is the best that I have seen. This coupled with an PWM controller like this one (http://www.ebay.com/itm/100A-10-50V-12V-24V-36V-DC-motor-PWM-Speed-Controller-Reversible-Forward-Reverse-/181736154419?hash=item2a5051a533:g:TX8AAOSwrklVSOoG) and...
  3. luvxu

    Have anyone tried using 4S Lipo on a 12V trolling motor?

    While looking around for a 24v motor, I found this motor on ebay for $499.95 which looked to be employing some kind of PWM controller...
  4. luvxu

    Have anyone tried using 4S Lipo on a 12V trolling motor?

    That's a lot of good information Monstarr. I will look into it for a used 24V motor. If I keep the motor handle but use it only max forward or max reverse then there should be no resistor in the motor, right? If there is no resistor then there should be no wasted power, right? In this way I can...
  5. luvxu

    Have anyone tried using 4S Lipo on a 12V trolling motor?

    Montstarr, It is too bad that you don't have reverse. I use this feature all the time on my boat for backing up. I guess that if you have not removed the motor controller handle then you can use it to get into reverse, right? I like your system as it uses 24V trolling motor with much more thrust...
  6. luvxu

    Have anyone tried using 4S Lipo on a 12V trolling motor?

    Hi Monstarr, Thank you for the explanation, it really help. Would you mind share the part numbers for your motor, pwm and battery. Some pictures or diagrams would be helpful. If the system has been working reliable for you then I just want to copy it so that I don't have to deal with any...
  7. luvxu

    Have anyone tried using 4S Lipo on a 12V trolling motor?

    Hi, So I have been told multiple times that a PWM controller would give the trolling motor better efficiency but no one ever gave me the specifics on how to hook everything up for it to work. After reading a number of posts, I think this may be the answer, please correct me if I am wrong here...
  8. luvxu

    Have anyone tried using 4S Lipo on a 12V trolling motor?

    Very interesting John, can you post the type of trolling motor and the brushed pwm controller that you have used. If it is possible, can you show some pictures and a diagram of how to modified the trolling motor to work with the brushed pwm controller?
  9. luvxu

    Have anyone tried using 4S Lipo on a 12V trolling motor?

    It works. Last week I did a dry test with the motor connected to the 4S battery in my garage. I let it run for 2 min and then shut it off as I think the motor may need to run in the water to get the cooling benefit. Then finally yesterday the weather had warmed up and melted all the snow that...
  10. luvxu

    Have anyone tried using 4S Lipo on a 12V trolling motor?

    I was watching this video https://www.youtube.com/watch?v=QKyVKb7sGLA . That showed a small 30lb motor that is similar to mine and it showed that there is no electronic controller board in the motor head. This means that the speed of the motor is probably controlled by resistor coils instead of...
  11. luvxu

    Have anyone tried using 4S Lipo on a 12V trolling motor?

    Hi All, I have been searching everywhere but can't seem to see any post on using 4S Lipo (16.8V) on a 12V trolling motor. In my current setup, there are 6 Turnigy batteries (hardcase 5000mA) connected to give 48V 10AH with a DC-DC converter to convert 48V down to 12V for running a motorguide...
  12. luvxu

    Sudden loss of power

    I replaced the -15v cell and everything is back to normal now. :) I think someone is going to yell at me knowing that I had not been using any BMS for the whole time. In the past I have had some battery packs with built in BMS and it always cut out on my motor when I need it most so I built...
  13. luvxu

    Sudden loss of power

    I finally got the time to disassemble the battery. Include is a picture of it. When I don't have any load, the battery read 49.93V. The 12 cells read: 1. 3.97V 2. 3.84V 3. 3.97V 4. 4.10V 5. 4.17V 6. 4.16V 7. 4.17V 8. 4.17V 9. 4.17V 10. 4.16V 11. 3.99V 12. 3.99V I noticed that when I put a...
  14. luvxu

    Sudden loss of power

    I wonder how to check for the battery cell voltage under load? One day I woke up to find out that the battery has 0V. I then checked each cell and found one cell that was shorted. I replaced that cell and the voltage went back up to 52V. Do you think that other cells may have a problem? I still...
  15. luvxu

    Sudden loss of power

    Hi All, My bike had been running well for over 400 miles until last week where it suddenly loss power and can't climb any slight hill. I noticed that every time I tried to climb a hill, the CA would show that the voltage quickly drop from 51V down to 35V and backup to 51V on flat land. My...
  16. luvxu

    GT LTS3 ebike

    yes I am pretty lucky neptronix, I got it for a mere $100. Here is the picture of a finished ebike GT LTS3. The GT LTS3 came in several frame sizes, 16, 18, 20. Mine is 16 so it is a bit small. I wish it had been 18 so that I can use the triangle for more battery. As it is right now I can...
  17. luvxu

    GT LTS3 ebike

    Hi all, After converting my Trek4300 into an ebike, I found out that the butt hurts a bit too much on any long joy ride and so I decided that my next ebike has to be a full suspension bike. I looked around hard for an appropriate frame and finally settled on the GT LTS3. The main advantage...
  18. luvxu

    Help: magic pie and lyen 12 fets not working

    Ok, success finally! I have been switching around with different permutation of the hall and phase wires. The final combination that works is the following just in case someone else might need it. Hall connection: color match completely from Lyen controller to the magic pie. Phase connection...
  19. luvxu

    Help: magic pie and lyen 12 fets not working

    Here are the pictures of the CA reading for 1. no throttle 2. little throttle 3. full throttle This is with the wheel off the ground and freely spinning. No throttle: why is there current draw (.514Ah) when there is no throttle? Little throttle: Full throttle: The phase wires are very...
  20. luvxu

    Help: magic pie and lyen 12 fets not working

    Finally some progress: I connected the wires as recommended by neptronix and the wheel spin as expected (Hall sensors: match all colors. Phase wires: match all colors). Now the new problem I found is that there seem to be no torque at all. I can stop the wheel easily with my hand. I also...
  21. luvxu

    Help: magic pie and lyen 12 fets not working

    Thanks neptronix. I'll try that combination at home tonight. BTW I took one of your advices and bought the EV bag for the bike, it work out well :)
  22. luvxu

    Help: magic pie and lyen 12 fets not working

    hi dnmun yes that was what I thought too. From reading the forum, I thought there are many people who already done MP2 and Lyen controller. But so far I have yet to see a post about the wiring.
  23. luvxu

    Help: magic pie and lyen 12 fets not working

    Hi Jared, Thank you for your suggestion. I already have the cycle analyst that show Watt and amperage, could you just use it to find the phase combination with least amp draw?
  24. luvxu

    Help: magic pie and lyen 12 fets not working

    yes, Lyen sent me this test run video to show that the controller works: http://youtu.be/0b7X-loEX78 he also sent two configurations for magic pie connections of which I have already tried without success: "Lyen Controller to Golden Motor MagicPie motor wire color lining (5/19/2011)...
  25. luvxu

    Help: magic pie and lyen 12 fets not working

    right, both the controller and motor are brand new and never been tried before. I wish to hear from other users who have the same motor and controller to see how they can get it working.
Back
Top