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  1. docw009

    DIY Load Testing Assembled Cell Packs

    The Makerhawk load testers are made by Atorch and sell for a bit less on aliexpress. If you have the version with the dial for setting current, don't change the value when it's on load.Adjust when the load is off. Mine glitched and blew up, I replaced with the model with color display and that's...
  2. docw009

    DIY Load Testing Assembled Cell Packs

    You should have referenced your other thread, Mike. There wasn't enough info in this stand alone post. https://endless-sphere.com/sphere/threads/52-volt-battery-issue-14s9p.124126/#post-1809176 Still don't have enough info. What was the pack voltage when the scooter shut off? It should have...
  3. docw009

    Ebikes about to get more expensive

    I believe that tariffs on small individual orders on aliexpress fall into some crack and are ignored.. Back when the Cheeto started these trade wars, and ebikes were going to be included, I bought my TSDZ2 kit from pswpower a month before it went into effect. Didn't even open it for a couple...
  4. docw009

    apologies-question on swytch

    You may have already read thru this thread. Someone looked inside his controller box and only saw two wires on that connector going to the battery. Yours is different? https://www.pedelecs.co.uk/forum/threads/swytch-kit-compatibility-with-non-swytch-components.44851/
  5. docw009

    Yose integrated controller in battery question

    The batteries that I have seen with integrated motor controllers put them into the battery cradle. And when I look up Yost, that' what they sell...
  6. docw009

    Torque sensor or not?

    Our normal pace is 12 mph. Been doing that for 9 years on shared trips. She couldn't ride her torque sensor bike that fast because it took too much pedal pressure to activate the motor, even when she was in turbo mode. Fortunately, the motor has a cadence sensor too, and there was software...
  7. docw009

    Torque sensor or not?

    Grin's gear is nice, but busts my budget. A simple geared motor with cadence sensor, KT Controller/display and a battery is less than a grand for me. Probably millions of people slogging to work every day on something similar. I don't have to ride to work, but if I did, I wouldn't want to work...
  8. docw009

    TSDZ2 troubleshooting : problem when i power on the display

    I would expect that your charger works on the other battery and there's something wrong with the first one, You'll want to replace it. Here's my guess on what's happening. Ebike batteries disconnect the internal cells from the power pins if any of the cells are too low in voltage. When this...
  9. docw009

    TSDZ2 troubleshooting : problem when i power on the display

    Can you move the battery from one bike to another. Could the first battery be too high or too low on voltage?
  10. docw009

    Replace controller

    I agree with E-HP, the LCD3 and an 18-20A KT controller will run most 26" bikes around 13 mph in PAS 1 at 36V. Probably will show about 120W on the LCD display. If you wish to go slower, the current can be reduced by up to 50%. with an LCD3 setting (C5). and there is also a setting (C14) for...
  11. docw009

    Can a hub motor be incompatible with a controller?

    The difference in indicated speed could be due to LCD settings for the magnet/gearing or differences in pulses/rpm from any discrete speed sensor in the motors. I don't see how the PAS is affected by the motor, if the PAS sensor is on the pedal axles. If it were on the motor axle as is done...
  12. docw009

    36 volt 4 pin silverfish battery

    Some batteries only use two of the 4 pins, Some pair them up with positive on two and negative on the other two, . Occasionally, vendors will reverse the plug polarities. You have to check with a voltmeter tobe sure it matches the ebike, if that's your application. The same cautions apply to how...
  13. docw009

    BMS and larger battery capacity

    I found this picture of a Genze 101 battery, Five modules, with each module holding six cells. I expect each module is arranged with two groups, each group holding three cells in parallel, That would give you ten groups in series, 3 cells in each group arranged in parallel, commonly called a...
  14. docw009

    Dinky Battery 13S-1P

    I purchased the Battery Hookup Molicell M42's last month. Tested one at 4.2Ah on my Littokala tester with a 500ma load. Made a 13S-1P brick to see how they worked. Makes for a nice compact battery. My load tester says it's 3.8AH with a 3A load. I was disappointed with that, hoping it would do...
  15. docw009

    Changing (wiring) for throttles on Ride1Up Lmtd - and others

    I know the protocol for a right turn using the left arm, but I prefer to point with my right arm for right turn, and left arm for left turn. I don't expect anyone in the USA to recognize the left arm signals.
  16. docw009

    eBike Thermal Fuses

    In my opinion, it's an old battery that's sagging on voltage under load. When you try to use it, safety circuits in either the bike or battery sense a voltage drop and shut the bike down. When the load is removed., the battery recovers enough to start again, but dies immediately underload...
  17. docw009

    Need some Help.. new battery pulling huge watts.

    Samsung says it will pass 9.8 amps continuous and meet the minimum life requirements in the datasheet. Nothing stops it, or any other cell, from going higher. It will get hotter and life will be shorter. Go too high, and it can get so hot that it vents and the CID, current interrupt device...
  18. docw009

    Old full suspension 26'' mtb vs modern hardtail 29er?

    A lot of rear suspension bikes don't have room for a downtube battery. This one appears to fit one, so that is one advantage,
  19. docw009

    Add throttle to the e-bike - please help

    PAS sensors sometimes are left handed or right handed. They have to be on the proper side of the BB axles. Then the magnetic disk may have to be facing the right direction, so the N-S poles of the magnets cross the PAS sensor in the right orientation. I never had much trouble with this type. It...
  20. docw009

    Add throttle to the e-bike - please help

    SP is often used to designate throttle connections, but in this case the voltage on SP is wrong It cannot cannot be a throttle signal, if it is at 4.8V. It should be at zero volts, because anything over 2V is recognized as a throttle input. On the KT controllers I use, the throttle supply...
  21. docw009

    Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18

    This thread discusses a similar problem. First poster found corrosion in the VLDC5 cable. Second poster found it in his battery cradle. Both caused a voltage drop under load that shut down the bike...
  22. docw009

    Pedal assist magnet disc broken

    You have a couple of choices. One is to buy the Shimano tool and get the BB off. Another is to buy the one-piece sensor. However, you have to make sure there is enough gap between the pedal arm and BB for it to fit. I've encountered bikes where that gap was too narrow.. The final one is to...
  23. docw009

    I need help with conection

    Your TF100 display has 5 pins like most displays do. -Red is battery power. -Brown is ground -Blue will change from 0V to battery when display turns on -Green is data -Yellow is data The problem is that the controller doesn't have a matching 5 pin plug. I see a six pin plug in the picture. You...
  24. docw009

    Add throttle to the e-bike - please help

    You found a a 3 wire cable with a connector connected to SP, SP5V, and GND? Did your throttle have the red wire on the SP5V pin and the black wire on GND? An LCD3 will never work with the controller, but it will power up and allow the settings to be changed, which fools you into thinking it...
  25. docw009

    Replacement controller and display/controls

    The controller wiring is pretty busy. Lots of extra stuff that I remove, like lights, cruise, EABS. There is a three pin connector for a speed sensor. A KT display can be set to work w/o a speed sensor, but then it only displays speed when the motor is running. When coasting, there is no speed...
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