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  1. S

    Still big scooting in San Jose.

    Just an update on my San Jose scooter. 2 - 12k watt QS 273 motors on 17” x 6” rims. 2 - 72v. 680 amp FarDriver controllers, independent keys, dual three speeds. 2 - 72v. 87.5 Ah lithium polymer batteries. 2 - 150 amp active balancing BMSs. 0 to 60 in around 3 seconds. Range about 100...
  2. S

    Stand up 2wd ebike

    Ok the mini monster scooter is officially rolling today. This is just the start, and it will change a lot, but just thought some of you might get a kick out of where it started. :thumb:
  3. S

    Pack parallel BMS?

    I found this new (to me) device and would like to get some expert advice or opinions on it. I am planning my first battery build and think this would be perfect, but maybe some of you have experience or better ideas. I want to use 72 of these 3.7v 80ah cells to build a 24s3p 84v 240ah...
  4. S

    Two different lithium batteries in series?

    Ok Amberwolf, here is one I think you, or one of the gurus, would know. Can I safely connect the 72v and 48v batteries pictured here in series to make a 120v battery? They each have their own BMS and are also different amp output, 100a for the 72v, 70a for the 48v. My controllers are normally...
  5. S

    Graphene lipo dreams…..?

    Happy Earth day all. I could really use some advice from the big battery brain brothers and sisters here, about the attached components. Is ‘graphene’ a real improvement in lipo or just a gimmick? It says they only need a ‘normal’ lipo charger, instead of a balancing charger? Can I hook up 5...
  6. S

    Large homemade scooter

    Here are some first pictures of a semi working mock up of my latest scooter for your enjoyment. I have been rolling this monster around my ‘shop’ and it is quite awesome. Just getting everything placed and finalized, which I find so fun! Already I will making some changes, so I won’t dress...
  7. S

    San Jose ebike build

    Hey folks, just wanted to share my new build. Anyone else trying all wheel drive? It works so awesome I can’t believe everyone is not doing it! It has added so much power and speed to the bike I had to upgrade the brakes just to keep it safe. Now this bike is a beast - with only 48v...
  8. S

    Amphibious electric vehicles

    Hey guys, just checking in with my latest homemade electric vehicle. This is all wheel drive reverse trike and it is fully amphibious and very fun! It uses standard electric bike hub motors with water paddles added between the spokes. I just have video of one time out, but it is not bad. I...
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