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  1. christerljung

    Dell Laptop lipo re-use

    Hi! I got 200 of these lipo packages. It is four cells, 2s 2-paralell. 51w Probably there is some kind obattrey protection/balancing circuit inside. I would like to find a matching connector for this battery(see pic). The pitch is 1.8mm. So far i havent found anything similar.
  2. christerljung

    durable +2kw derailleur system

    One key thing to solve after riding hotrodded GNG:s for a year now is the last reduction-stage. Things that come to my mind is: -I really like the option to shift, but 3 speed is enough. -The bicycle chain can handle enourmos amounts of Power, do we really need bmx-halflink for 2-6 kw? -Is the...
  3. christerljung

    custom frame ideas

    I'm getting closer on the first custombuilt frame. It is meant for garden-fun and urban-trailsriding. It needs to have: Simple light frame. Lipo onboard power Ultra slow riding (sensored motor) It does not need to have: Long suspensiontravel High top-speed Long range Alu or steel? Steel...
  4. christerljung

    middrive ebikes in the local press

    Here is an article in our local newspaper from when Adam and Efflam was here and we had some funny days: http://www.dt.se/nyheter/falun/1.6196178-en-ljudlos-motorsport Fast and ugly thru google translate: A silent motor sports Falun The audio sounds like an RC car, but it is an electric...
  5. christerljung

    1.5 kw bulk charger

    Hi! I'm gonna build a bulkcharger for my 100volt gng middrive. For future upgrades i want the spec to be about 135 volt and 10 - 15 ampere. What could i use? Serial connected Power supplies from ebay? Which ones has isolated output? (serial Connection possible)
  6. christerljung

    non-pedal GNG 4kw

    Inspired by bzhwindtalker:s great builds and the incredible power deliverance from the GNG 450 motor i'm aiming for a very simple setup. The Specialized bighit will be used with the BB as a jackshaft, no pedals and footpegs a bit in an mx-style. There will be a single reduction from motor to BB...
  7. christerljung

    third GNG - The Kona Stinky

    I couldn´t resist this little nimble thing. Got it for for 270$ GNG will be ordered through aliexpress.
  8. christerljung

    BMS-batterycharger mod for 18Slipo bulkcharging

    Maybe this have already been covered but... I bought an BMS-battery 400w charger, a pretty popular model here on ES from what ivé read. The idea was to order it preconfigured for 12S and then adjust it on the internal blue variable resistor for 18S. I did all this but today suddenly it...
  9. christerljung

    Lipos on fire!

    I heard a "bang" from the garage tonight. When i came there 2 of 6 turnigy 5ah 6s was on full fire! Covered it with heavy rubber sheets. The smoke was terrible. I had forgotten the charger on when trying to adjust some misbalanced cells... All my fault, lucky i was. Battery medics for sale:
  10. christerljung

    GNG commuter, waterproofed, snowsafe, reliable

    Building a second GNG-based ebike for commuting. The goal is to be able using this in everyday riding to work or to food store. It should look a little ugly so no body will steel it. The motor/transmission will be encapsulated to protect it from wet snow and salt. Will try to keep the budget...
  11. christerljung

    which used DH-frame for mid-drive build?

    I need advice. Which one of these that could be realistic for a proper and safe build with the GNG 48v brushless kit? Thanks! Kona Stinky. 742 USD some to fix, but easy when kit comes on. price update after negotiating with seller: 519 USD Kona Kahuna 445 USD need disc brake-kit Scott...
  12. christerljung

    my First build GNG middrive, Sp. bighit dh 6x 6s5000mAh lipo

    GNG 48v brushless middrive, steel mtb-frame 6x 6s5000mAh lipo (15Ah 48v) First of all: Thanks! Because of this fantastic forum im now up and building. I´ve been reading for some weeks now and feel prepared to this in a much better way because of all good posts. The setup: middrive is choosen...
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