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  1. eHomer

    Voltage drop down converter to 12v on Bike battery pack

    Pedrinho's recent thread on rewiring a battery pack got me thinking again about one of my pet ambitions. To be able to use my 36v and 48v lithium ion bike batteries to power my 12v kayak outboard motor. Rather than hijack his thread even further, I thought I'd better start this new one, (oops...
  2. eHomer

    Video software to overlay GPS data

    I saw some posts on here about various free software to overlay GPS information onto videos. I've tried searching every combination of words I can think of, but no joy, (and the search won't accept "GPS" because it says it's too short or too common ! :rolleyes:) Can anyone please post a link...
  3. eHomer

    PAS level 1 on 1000w direct drive motor too fast ?

    I've been tinkering with my spares box, trying out a few combinations of motors and controllers and I've come across what seems like a strange anomaly, (to me anyway). I've hooked up an old (but hardly used) 1000w direct drive rear hub motor to a BMS S12S sine wave controller and a 48v 10ah...
  4. eHomer

    Balancing a 4S lipo pack with a Turnigy Accucell-6 charger ?

    I can't seem to balance the cells in my 4S 5000 mA lipo packs from Hobbyking. Last year I assembled a 30 ah 12v battery pack with six of these packs connected in parallel, using the correct 6 way balance lead connectors and voltage alarm etc.. I carefully ran it between 4.2 volts and 3.6 as...
  5. eHomer

    UK supplier for Q100 328rpm front hub motor

    Does anyone know of any UK suppliers for one of these ? Preferably in a 20" front wheel, but even just the motor ? BMS have always given me great service, but the customs man and Fedex always seem to sour the prices now !
  6. eHomer

    Battery pack connector identification.

    I'm trying to find out what type of connector my 48v 10ah lithium iron battery pack is fitted with. It's the bottle bracket fixing type shown in the inset, with a large photo of the socket itself. The male plug is fixed in the holder on the bike, and I'd like to get a line plug so that I can...
  7. eHomer

    Switched from SWXB to Q100H

    I fitted an Ebay kit 3 years ago to my German Alubike, a full suspension step through hybrid with 700c wheels. With help from the forum I've gradually upgraded the parts, now keeping just the original lithium iron 36v 10ah battery. I first changed the KU65 controller for a BMSbattery S06S sine...
  8. eHomer

    Hobbyking 6S 16ah Lipo packs

    I was going to post this in reply to Kinninvie's BBS02 thread, but I thought I'd be better off posting it as a new thread rather than hijacking his. :) http://www.hobbyking.co.uk/hobbyking/store/uh_viewItem.asp?idProduct=68822 Wow... 16 a/h of 22.4 volts for £80 from a UK supplier ? That...
  9. eHomer

    BMS spoke hub ends too short ?

    My Q100H has just arrived from BMS, with the usual quick delivery service, just over a week since ordering. However, the spokes I ordered with it do not fit in the spoke holes correctly. I ordered forty 260mm long 13g stainless steel spokes with the hub. I just tried putting them in, and...
  10. eHomer

    UK based suppliers for Q100 motors in rims

    Following on from my thread about changing the motor in my Alubike: As usual I'm drifting about all over the place with this project. :rolleyes: I've considered mid-drive, but I'm back on the idea of a Q100H in the front wheel again. I hadn't realised the number of UK suppliers had increased...
  11. eHomer

    Quiet front hub motor options ?

    I'm getting the urge to tinker with one of my electric bikes again.... My DIY "utility" runaround bike is a German Alubike with the handy combination of a deep step through frame and full suspension. Despite it's looks, it's surprisingly lightweight and easy to pedal with it's Sram 7 speed hub...
  12. eHomer

    Uk/European Union Suppliers for Q100H front wheel ?

    The motor on my "everyday" shopping ebike seems to be getting more whiney, or else I'm getting used to the quietness of my BMS supplied Q100 on the folder and the cassette motor from Dave on my mountain bike. I originally converted it 3 years ago with an ebay kit with a nameless 250w 36v geared...
  13. eHomer

    Most cost effective 12v highest a/h lithium battery setup.

    Apologies for being pretty much "off forum" with this, but the accumulated knowledge base on here is the best resource I can think of to find the answer to a project I've been mulling over for some time now. I know I've touched on the question on here before, but I confess I didn't fully...
  14. eHomer

    Electric conversion on Hase Lepus recumbent trike

    When I bought my 20" Q100 front wheel from BMS last year, my plan was to use it on two of my bikes, wiring each up permanently with controllers and throttles etc., and swapping it quickly between them. (BMS sell the neat little waterproof 8 way motor line connectors separately, so it's just a...
  15. eHomer

    First 18 mile test run with S12S, 48v battery, and MXUS cassette motor.

    I've just returned from my first test run with my upgraded setup on my DIY Giant Trance. I bought one of Dave's rear MXUS motor's with the cassette spline last year, and originally ran it with my 36v battery. I've now rewired it with a BMS S12S sinewave controller and 48v lithium ion battery...
  16. eHomer

    S12S sine wave controller pics and shunt reduction

    I've nearly finished upgrading the controller and battery on my Giant Trance. I've taken the unusual step (I think it's unusual anyway !) of reducing the shunt cross section to increase the resistance and reduce the max current down from 25 amps to about 18. I checked the plan with Dave and...
  17. eHomer

    Flashing GT Power RC 130A wattmeter

    I'm just completing a controller and battery upgrade on my Giant Trance conversion and I've run into a problem. I'm permanently installing one of those cheap Ebay wattmeters, the GT Power RC. The 48v battery, BMS S12S sine wave controller, and MXUS cassette motor are all working fine, but the...
  18. eHomer

    Dahon Boardwalk folder with Q100 290 rpm test ride

    Just to follow up on my post on here asking about fork caster/trail, I've now finished it and given it a short test ride. I think it was Dave that said the curved forks would make very little difference to the handling, and I'm delighted to say he's dead right. :) It's still very sharp and...
  19. eHomer

    Caster angle for front forks

    I'm modifying my old Dahon Boardwalk folder to an ebike. It's not quite such a good spec as the later ones, but it is fairly light and rides well with 6 deraillier gears. I'm trying out my BMS 20" 250w 290rpm front wheel that I bought a while ago. It was intended for my Hase Lepus trike (and...
  20. eHomer

    Opinions on this UK Ebay supplied 48v lithium battery

    Apologies if this has already been mentioned on here, I looked but couldn't find any recent threads on it. I've been keeping an eye open for a UK supplier of 48v lithium batteries with built in BMS and including a charger. I just noticed these on Ebay, from Pedalease...