Recent content by luvxu

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...

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...

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...

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...

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...

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...

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...

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?

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...

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...

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...

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...

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...

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...

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...