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  1. pickworthi

    DALY Smart BMS: Anyone managed to change any settings?

    I have a DALY Smart BMS (10S). It is functioning correctly, in that I have it connected to a 10S pack, and it is displaying the cell voltages in the PC application (UART connection) correctly. Also, charge and discharge are fine. My issue is that I want to change the cell low voltage cut off...
  2. pickworthi

    Why I need PAS

    Cycling around where I live is really great, quiet back roads, great views. And then there is this:
  3. pickworthi

    Cycle Analyst PAS assist scaling - spreadsheet to visualise

    I have been playing around with the PAS power scaling that is provided by the Cycle Analyst. While it is simple, I felt the need to visualise the effect of the settings. Also, my mental arithmetic skills go missing while I'm riding, and having it on Google Sheets means I can just look at my...
  4. pickworthi

    Connector

    Quite a few people post here asking connector questions - so I thought this cartoon might be appropriate :-) https://xkcd.com/2503/
  5. pickworthi

    CA3 - Baserunner: Help with PID tuning for PAS only

    <preamble> I have replaced my previous KT style controller with a CA3 and Baserunner Z9. At the same time I got a 24 pole PAS sensor from Grin. All wired connections are good, and everything functions as intended. The bike is used for PAS only, and I want it to be UK street legal, so 16mph max...
  6. pickworthi

    Battery discharge at constant watts with iCharger 4010DUO

    I recently acquired a Cycle Analyst and Baserunner, and noticed that they provided the ability to limit maximum power, as well as maximum amps. I have a 36V (10S) e-bike conversion, and the idea of getting constant peak power delivery over a full ride discharge is attractive to me. My current KT...
  7. pickworthi

    Grin Technologies - Delivery Address Problem

    I've had a problem with two consecutive deliveries from Grin Technologies. In both cases, items I ordered through their web site were addressed to the wrong address. I have my correct address on my user account. When the order is placed and accepted, I get two emails, an order confirmation, and...
  8. pickworthi

    Grin Motor Simulator and the back of my fag packet don't agree

    I'm trying to get a better understanding of what goes on between controller and motor in terms of power, voltage and current. My motor is a geared hub Shengyi, close-ish to the SX1 that Grin stock. The SX1 standard winding (according to the site) is 7.4 rpm/V and a 4.87:1 reduction ratio...
  9. pickworthi

    Baserunner settings for unknown Shengyi geared hub motor

    I have a kit from Dillenger installed on my bike. It's this one: https://dillengerelectricbikes.co.uk/collections/street-legal-kits/products/street-legal-electric-bike-kit-samsung-powered-v2 It is now almost four years old, and while it is serving me well, I have decided that I want to start a...
  10. pickworthi

    Cycle Analyst PAS settings - speed target possible?

    I am considering chaining my "Mk1" ebike conversion, and am looking at Cycle Analyst V3 (plus a matched controller) as an option. However, I like the way my current PAS works, and would like to keep it that way after conversion. My current controller (from a Dillenger UK Street Legal kit)...
  11. pickworthi

    Battery Three way switch - any issues with this design?

    I have three batteries on my e-bike, two main batteries in the front saddle bags, and a reserve in the back saddle bag. At the moment I plug and unplug as needed to change over. I want to see if I can make a three way switch, which will make the process during the ride easier. Switching will be...
  12. pickworthi

    RC LiP0 combined packs: parallel balance wiring

    I want to combine two RC LiPo packs in parallel, in such a way as they form a single battery, rather than two batteries connected in parallel. I've had a good read of this thread: https://www.endless-sphere.com/forums/viewtopic.php?f=14&t=52240 Based on the excellent description, I created a...
  13. pickworthi

    MH1 18650 Capacity - puzzled

    I have a batch of MH1 cells - manufactured together so near identical if I understand things correctly. I've done a discharge test on one cell from the batch, and on a 10s4p battery that I built from the batch. The thing that is puzzling me is that I found the single cell provided 2012 mAh on...
  14. pickworthi

    iCharger LogView -> DataExplorer -> Linux version

    I recently acquired an iCharger 4010DUO, which provides comprehensive logs for analysis. The documentation for the 4010DUO gives the following web site for the LogView software: http://www.logview.info/forum/ This site is clearly dead, is no more, gone to the great webmaster in the sky, <insert...
  15. pickworthi

    10S balance plugs (2x5s) short protection?

    I've attached a diagram showing the wiring of a 10S battery I have built. The charging BMS will be me and a 4010DUO charger. Discharge short protection is via 15 amp fuse - which is the maximum expected load through the e-bike motor controller (UK regs limited). My question is about protecting...
  16. pickworthi

    Connector name please

    I'm feeling a bit stupid about this. I've searched for every form of JST connector I can think of, but I just can't find one that matches the white connector at the bottom of the circuit board in the attached picture. It's hard to order replacements when one can't give a part name :-( Can...
  17. pickworthi

    Gloves for working with batteries and electronics

    I've been watching a lot of YouTube videos of battery building and electronic circuit building to try and educate myself on best practice (and just learn in general). I see that most presenters who seem to know what they are doing wear some sort of glove. There seem to be two types used mainly...
  18. pickworthi

    Electronic load for testing - any thoughts on ET5410?

    I have been thinking of building my own restive load device. I don't need anything fancy, just enough load to discharge a 10S Lipo battery pack safely, although some flexibility would be nice. For context, I'm in the UK, and have a street legal e-bike. Staying legal means I'm in a power range...
  19. pickworthi

    Rolling Road for PAS front hub e-bike (sort of)

    A while back I replaced my friction type trainer with a direct drive type trainer. Recently it occurred to me that I could still use the friction trainer as a resistance for the front motor hub on my e-bike. Being in the UK, its a street legal 250W continuous power motor - 520 ish watts peak, so...
  20. pickworthi

    UK mains (240V) and Luna Advanced charger: can it work?

    I have a UK street legal (250W nominal) pedalec, and 36V (10s) batteries for it. I'm planning on building two bespoke 10s batteries, and want to find a charger that allows me to control the charge current and final voltage. From all I read, I can prolong the pack life by charging at less than...
  21. pickworthi

    Is it possible to identify this connector? (Panda Bikes battery)

    I have acquired a Panda Bikes battery (long story). Panda bikes no longer exists, but a listing of the battery is preserved on the UK Amazon site here: https://www.amazon.co.uk/Electric-Battery-Universal-Lithium-charger/dp/B078C667JG I would like to put the battery to use, but its power output...
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