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  1. fesanand

    Question about electromagnetic fields and health

    I'm planning to build a helmet with e.l. light panel, including a tiny battery and the DC to 120v AC 1.2khz converter, this last one is also tiny and is going to be located in the lower helmet edge so close to my neck and relatively close to my skull. I'm wondering if that kind of converters...
  2. fesanand

    Implications of stepping down the motor size (?)

    My current motor is a big gearless 243mm diameter hub motor. (580rpm 64km/h @ 60v @ 26inch ) I'd like to get something gearLESS, stealthier and lighter without losing performance. I wouldn't care to lose some top speed as I never run. Considering that I change the wires for a larger gauge...
  3. fesanand

    Buzzer low or medium pitch (?)

    Despite works incredibly well I can't use the typical moped horn(6-7cm diameter) for a new stealthy build (road bike). I don't want those pre-made electric bicycle horns, IMO they sound ridiculous with its high pitch sound :oops: I need something really small, 4cm (1.6")diameter or less. Does...
  4. fesanand

    Hall Hidden Brake Sensor used as Throttle (?)

    I have in mind an stealthy new bike. I was wondering if anyone knows this sensor and if I can use it as a throttle. The idea is to use road bike "drop bar shift lever cable" attached to this sensor and connect it to the throttle connector. So that way, moving the shift lever sideways, instead of...
  5. fesanand

    Throttle Voltage used as power source.

    My current Voltage LCD (2 cable) is too big and I'd like to get something smaller/stealthier. The problem is small voltage lcd have 3 cables, needing a 5v input to work (3rd cable to read the battery voltage). May I split the 5v power from the throttle to feed the LCD ? This is the Mini LCD...
  6. fesanand

    Help with variable voltage Charger

    I've got a generic Chinese charger, customized for a 14S battery, final voltage 58.8V (14 x 4.2V) My new battery is different, is a 15S battery. I'm wondering if I can tune the final voltage (target 15s = 63V) adjusting the Variable Resistance (VR1 VR2 or VR3). Does anyone know what these 3...
  7. fesanand

    Thin wires to connect 18650 in parallel?

    Hi, For my new ebike project I need a battery made of 24x 18650 (each cell rated at max 10A) cells: 12S 2P. Controller S606 will only withdraw 16A. Due to stealth reasons I want to insert 12S 1P in the top tube and 12S 1P in the down tube... As if two independent 12S1P batteries only...
  8. fesanand

    Lipo charging in parallel = Self balancing cells (?)

    Hi, My bike uses 15s1p composed by 3 Lipo packs of 5s1p connected in series. Normally I never go down 3.65v per cell (never below 54.8v for the 15s). I do charge the 3 packs in parallel and so far I have never needed to balance-charge the packs. But today it was an extremely windy day and...
  9. fesanand

    Chinese and marketing = enemies forever!!!!

    Looking for a Cyclocross carbon frame for the next build, I ended up in a famous recent worldwide web. I must recognize that Chinese are great manufacturing. They are working ants. They still offer beating low prices. But looks like beyond production they don't know what to do, they don't know...
  10. fesanand

    Second Build becoming a Pelican - Specialized SX 2003

    In this second build I transferred motor-battery-controller from the Hardtail to a full suspension with pelican case. Regarding performance, there is only a light modification of the shunt to get better acceleration and a light enlargment of the battery (from 14s8p to 14s9p 18650 used laptop...
  11. fesanand

    Motor or controller fail (?) SOLVED

    Hi, Previous: this combo motor and controller has been servicing me flawlessly for 6 month. I just bought a new bike frame and a pelicase and transfer the motor, and controller into the pelicase. I also lightly moded the shunt adding some thin copper wire and soldering wire as you can see in...
  12. fesanand

    Light system. Led in series question.

    I need some help installing a light led system in my bike. My battery is rated at max 59v and 20a. I want to install 1 front light and x2 "angel eyes" rear led. The front light input voltage is: 12v-80v Each rear light is rated 12v-24v. If I connect the 3 lights in series and assuming that...
  13. fesanand

    About controller and three speed switch...

    Hi, Sorry for the question if is being repeated but I didn't find anything in endless sphere + google search. I bought this Kit, which I'm really happy with...
  14. fesanand

    Triple Clamp conversion ?

    Hi, Odd question. I browsed Google (forums & images) and didn't find any solution.... but must exist a cheap way to convert your normal fork to a triple clamp fork, only in terms of look-like or aesthetic way by adding 3 pieces: two tubes and a top brace (in red in the picture). Has anyone done...
  15. fesanand

    No pedals. Which motor is better for steep hills

    Hello, I'm new, sorry if is not the right place to ask this... I need your experience for this quite specific question. background: I want to transform a mountain bike to full electric. That means no pedals, no pedal sensor, no crankset.... Range I want to do: I do a little commute, mostly...
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