Search results

Date Relevance Most replies

  1. B

    Battery amp-hour, watt-hour and C rating tutorial

    I ran across a new youtube video from Afrotechmods, who explains the difference in Ah, Wh and C ratings. Pretty informative video: cxkVxi9P0EA https://www.youtube.com/watch?v=cxkVxi9P0EA
  2. B

    Jump starting a car

    I have a 48v 16c 20ah pack for my Bike and tried to start a car with a few cells.. Their battery that read -8v, so I pulled their terminals and connected to a few of my cells for 13.7v. I could run their lights and hear the starter clicking, so I figured there was a bad connection because of the...
  3. B

    5V/250mA supply from up to 140V

    I've accidentally purchased a bundle of 100ma chargers from ebay once. Those things took way too long to charge anything. Since then, I've been buying 1000ma, which is the same amperage as an iphone charger.
  4. B

    5V/250mA supply from up to 140V

    How is your project coming along? I've been looking for an efficient way to tap into a 16c lifepo4 pack to power usb devices(1amp).
  5. B

    Disc Upgrade

    I got my new Avid 203mm disc (ebay $15.98) and 203mm post to post adapter with screws (ebay 14.09) yesterday. The screws were about 3/32" too long, so I had to sand them down because they were bottoming out. I'm still a little undecided on the calipers. There are so many options... I want to...
  6. B

    Disc Upgrade

    Since my bike is 80 pounds and I'm over 200 and I have to stop from time to time, my disc's are paying the price. They turn smoking hot colors, warp in odd ways and wear my pads out frequently (every 3 weeks for pads and 2 months for discs), I need to go bigger. I currently have Dart 3's...
  7. B

    Ebike ski machine

    My friend were snowed in at my place last weekend, so I decided to throw a ski on the front of my bike and test it out. I put a few zip ties around the rear tire and that gave me great traction. Unfortunately, the thing did not steer very well. The next step would have been to place slats or...
  8. B

    Ready for Gears

    So... I based the grade on Google terrain and it was off by quite a bit. On my way down the hill today, I used my cell phone and a level app to measure a few spots. The easier way up to my place is 7 degrees and the ugly fast hill is 12 degrees. This puts them at 12.3% and 21.3% grades.
  9. B

    Ready for Gears

    I'm ready to ditch my direct drive hub for a geared hub, but I'm not sure what I'll need to pull me up 10% grades(or greater). My current setup is sold by Papa Motors http://goo.gl/bDZw7Q As it stands now, I can get a 30 mph run at one hill and have to peddle like crazy about 3/4 of the way up...
  10. B

    Bioenno Power LiFePO4

    I think there was a bit of confusion. I just now opened up my battery to find that they are those hard plastic cells. And I think I figured out what the issue was. When I pulled on the top cover, the wires were stuck a little bit to the spacer foam stuff and it lifted them a little bit. That's...
  11. B

    ** UPDATED** NEW! Endless Sphere Forum Member Map.

    I tried to add a pin, but I got this message: Warning Your map has 5 pins on it. Your pricing plan has a limit of 30 pins per map.
  12. B

    Bioenno Power LiFePO4

    I had noticed the cracked plastic, but did not think anything of it because it showed good voltage and there was no dent. Hopefully they dont try to pin it on me. I cant give cell counts because I have to send it back as a whole and do not have access to the bms pinout since it's covered in the...
  13. B

    Bioenno Power LiFePO4

    I rewired the breaker/fuse/shunt and took off. After 10 feet, it cut out. I measured the voltage at 1.6v and thought that maybe the BMS was acting a little goofy. So I put it on the charger, plugged everything back in and the motor turned. As soon as I unplugged the charger, it cut out again...
  14. B

    Bioenno Power LiFePO4

    I forgot to mention that it cost $775.48 after shipping. I didn't want to wait 2 months for it to get here from china.
  15. B

    Bioenno Power LiFePO4

    I double checked, and they are different from eachother. The new one is an Aviation Plug GX16-3P.
  16. B

    Bioenno Power LiFePO4

    I received my 48v 20ah battery from Bioenno power yesterday. I noticed that they are not mentioned that much on this board, so I figured I would throw some thoughts out there. The BMS is hidden inside the packaging, which is good and bad. You are stuck with the tall configuration, unless you...
  17. B

    LiFePO4 48v 15ah BMS issues

    The other pics did not stick..
  18. B

    LiFePO4 48v 15ah BMS issues

    I am replacing the BMS that came with my LiFeP04 48v15ah Ping battery with a fancier model that has communications abilities. But I'm not sure about the mosfet's. Do I want to run solder across all of them like the way I have seen similar ones have been done?
  19. B

    LiFePO4 48v 15ah BMS issues

    I'm fine with a volt meter. They instructed me to base my measurements off of the B- writtin on the board (not sure why). I don't know the version of the BMS. I don't think I shorted anything out since it wasn't plugged in at the time of the replacement board.
  20. B

    LiFePO4 48v 15ah BMS issues

    I had my battery for about 2 months and then the first LED would stay on all the time. They sent me a new BMS, I installed it and after a few days, the pack was back to normal. But a week or two later, the first 2 lights would stay on. I'm talking to PING's customer service, trying to figure...
View older results
Back
Top