Search results

Date Relevance Most replies

  1. pgt400

    CBA-III Questions

    While using my CBA-III for the first time I noticed theres no way to compensate for the losses in the testing leads/interface. Has anyone mod'ed this with remote Voltage leads? The .005 - .010 losses really screw up the test. I just found they have an enhanced software package that includes...
  2. pgt400

    Parallel Lifepo4's with different capacity & IR with Data

    Did a test this morning to get data from parallel Lifepo4 packs...wanted to see the effect of P-ing 4S1P of Headway 10ah with 4S1P 2.3AH A123 to determine feasibility of a booster pack. Both packs were first balanced charged to 3.6v / cell with a Turnigy charger. Setup was....Both the packs...
  3. pgt400

    48 volt Rear Golden Motor Noise

    I have a 48 volt rear Golden Hub motor 1000w. I bought it used about 6 months ago, works fine but is a little noisey while cruising. Sounds like bearing nosie on gear cluster side, not constant but annoying on an otherwise silent ride. Is this normal for this motor? Can I get replacement...
  4. pgt400

    Mini BMS

    Nice looking BMS. Surfacemount, mounts on cell, temp controlled LVC. Theres also a video of it on youtube....nicely done. http://www.cleanpowerauto.com/MiniBMS%20User%20Manual.pdf
  5. pgt400

    Where to buy Signalab V2.5 BMS

    I'm looking for the website that sells the Signalab BMS V2.5...saw it a few months ago but now can't seem to locate it? Its not Pings site as he only sells with his batterys. Thanks. These guys seem to only carry the older units... http://www.all-battery.com/protectivepcbsforlifepo4.aspx
  6. pgt400

    watts per mile typical for e-bike?

    Whats the typical watts/mile required for a 20 mph tops, 48v, 500 watt hub motor e-bike? I know theres many variables (weight,wind,flat). Just looking for base line number.
  7. pgt400

    48 Volt 20" BMX E-Bike

    I picked up a used 48v, 500 watt brushless Golden motor to experiment with as a 3 phase generator. Worked very well due to the low rpm/v (~8rpm/volt). I had a 20" bmx bike laying around so I thought I'd motorize it just for fun. Bought a 20" alu wheel, stainless spokes and laced the...
  8. pgt400

    PowerForce Lifepo4....any info?

    http://www.powerforceusa.com/ Saw some info on these cells on dyi e-car forum. Supposity non vented, claim is they don't swell either and can be mounted in any orientation as they are dry and not paste as TS and SKE. Anyone have any experiance with theser? Some speculation that they may be...
  9. pgt400

    Hub motor as a alternator

    Has anyone here ever tried a hub motor as an alternator (or generator for a brushed unit). Seems they would be perfect, high current/voltage, cheap.
  10. pgt400

    2 componet simple charge regulator lifepo4

    I was searching on the TS battery yahoo forum and see were some are using simple charge regulators across thier TS cells. The device consists of a white LED and TIP 105,125 PNP darlington transistor. Apparently a white LED has a consistant 2.5v drop and the TIP105 a 1.2v drop during conduction...
  11. pgt400

    agm's and the warm weather

    Its really amazing how much effect the weather has on sla performance. This weekend is in the unseasonalble mid 80's in NJ. I'd been riding in 55-70 degree weather till now and thought my batteries were dying as range and top speed were way down....now they are right back were they were last...
  12. pgt400

    Cycle Analysist noise with chargering

    I have a CA with on-board chargers on my bike. During discharge, the readings are all very stable. During charge my current reading jumps all over the place. I know whats causing it, the on-board switching chargers (3, 24v, 3amp). Anyone else have this problem? I suppose the fix will be some...
  13. pgt400

    Thunder Sky mounting

    Is there a problem with mounting thunderskys horizonal? I see some bikes on evalbum where they did, but on the TS yahoo forum some advise againist this?
  14. pgt400

    Headway vrs Thundersky?

    Anyone ever compare the new Headway cells to the equilivent capacity TS cells? For exampl 4P of new Headways to a TS-40 ah ? The published ratings look similar at 3c. The going rate for Headways looks to be around $20 each, Elite wants $68 for a single TS-40.
  15. pgt400

    Combing AGM & PSI Cells ??

    Been thinking of adding 4 each PSI cells (1P4S)in parallel with each of my 6 35 ah AGMS (total 24 PSI's). Thought is they would help with the heavy current needs under accelleration and add 10 more ah. During cruise the AGMS would charge the PSI's to keep balance. I would charge them both with...
  16. pgt400

    Powerstar AGM's seem to be giving up

    I have about 600 miles on my PowerStar AGM batteries (6x 12v 35ah). Started out with 20 mile range before LVC would trip, just recently I noticed the LVC cutting in 14,12 and today 10 miles! I checked all the batteries and they are all about 13.45 volts after charge. Today after the LVC...
  17. pgt400

    Silicon Green Saver Batteries hype??

    I'm trying to find info on the Greensaver Silicon batteries. It appears they are not used much at all, despite being OEM in the extreme scooters and all the hype on Greensavers web page? Are there any user reviews? Or comparisions to BB's or other quality SLA's? Poop or Scoop??
  18. pgt400

    sla's don't seem to like the cool weather

    I took my bike for a ride this morning, right off float charge, 52 degrees out, noticed it felt soft in power. My top speed down my road is usally a solid 50 mph at about 52 amps. This morning it was barely 46 mph. I drove around for about 10 miles or so, under hard acceleration at the 12 mile...
  19. pgt400

    How to size SLA charger for Lifepo4's?

    As I understand the charging algorithm for SLA's and Lifepo4's are simlar, CC to CV. How does one size an SLA charger for charging Lifepo4's? If I have a 24v smart scooter charger would I use it with 8 Lifepo4's ? (use 3volts each=24)?? Yes I know one should balance which I will do at home...
  20. pgt400

    Looking for Solar Panels for charging station

    I've been looking to pick up 2-3 Solar panels for charging my EV Ninja. Figure I need about 200-300 watts (17 volt panels). Will use the panels, 75 AH deep cycle batt and inverter. This way I can charge the bike at night plus if the bike is charged I can use the power for my CFL workshop...
  21. pgt400

    Regen and AGM max charge

    I have regen on my converted Ninja using 72v, 35 ah (6) AGMS. I'm wondering if the regen current should be limited? My first test show 60-70 amps of regen....but capable of much more. Its short duty but still may be too much? Anyone have experiance with this. I'm cranking it back till I...
  22. pgt400

    Yet another Yellow Ninja 250 Conversion!

    I picked up my donor 03' Ninja 250 today. 1044 miles, mint condition but not running, sat for 3-4 years. Cleaned carb and 1 hour latter was running like new, took a 1 hour drive around town.....very nimble/fun bike! Tommorrow I will pull the engine and ebay it. On order ETEK-RT, Kelly 72400...
  23. pgt400

    Nimh batterys can be put in Parallel ??

    My buddy works for Toyota Service, has a Prius pack for me. Came off an 04' with 33k miles. Front end totaled. I think he said it was a 220v 7 AH pack? Can Nimi's be used in parallel? I remember from my NIcad/NIMI RC days (now all lipo) this was a no-no. Was thinking of a 60v 24 AH pack...
Back
Top