Search results

Date Relevance Most replies

  1. flip_normal

    Knocking noise from geared grunt hub motor

    Bought a geared front hub motor from China and got it spinning using this controller. As the no load speed increases (I haven't put it on a rim yet) there is a mechanical knocking noise coming from it (at lower RPMs it turns smoothly). The vendor claims I'm using the wrong controller. Has...
  2. flip_normal

    12Ah 3.3V LiFePO4 cells on ebay

    These on ebay look like Psi Corp 12Ah 3.3V LiFePO4 cells. discharge rate 6.5C continuous ie. 80A on ebay (edit) 130A continuous Psi Corp spec. 3.3V x 12Ah = 39.6 Wh/cell 49Au$ = ~46US$ / 39.6Wh = 1.16 US$/Wh Just to compare. MILWAUKEE V28 28V x 3Ah = 84Wh/pack 80US$ / 84Wh = 0.95 US$/Wh...
  3. flip_normal

    Is Thundersky offering a 5 year warranty?

    Found a link to these cool new scooters from e-max Germany whilst checking out the Vis4V forum. They offer four LiFePO4 powered models and warrenty the battery for 5 years. The LiFePO4 batteries have exactly the same capacity and weight as the 40, 60 and 90Ah cells from Thundersky. Anyone got...
Back
Top