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Found 2 results

  1. FIRST SOLUTION : AN EXTERNAL DIY BATTERY Today I thought I would do a small external battery for my 9Bmini. I had already bought a small pouch (for bike) in this regard, I still have a good stock of cells (NCR18650B 3400mAh), a compact BMS with wires and all consumables. So no excuse not to put it. And here's the result : Here the challenge is to be able to put 15 cells (for just a 190Wh) following the format of the cover (yeah otherwise there is no point) So there are two sets of six cells glued offset (to make it more rigid) and at the end, there are 3 cells (glued in triangle shape, for the same reasons) The packaging is not very nice either regular because I have recycled old packaging already used. I make a hole (with a soldering iron) to bring out the power plug, the charging socket, it is accessible from the top of the zip. The goal is to have easy access to the charging socket, without having to remove the battery or remove the cover (even if it's quick and easy). Once this little world inside the pouch closes perfectly. And may the soldering iron is hot, I make a GX12 -4P to LEMO adapter in order to use this external battery or on the mini or the 9B1. The battery creates a slight imbalance toward the back but nothing too bad. The cover fits perfectly on the mini, without causing any problem. And finally, without this being the initial target, this package also attaches very easily on the wrist of the 9B1 (though aesthetically it's less that).
  2. 144 Prismatic 103450 Lithium ion 1800mah cells in 6S24P packaging. 3D printed battery cases. Constant Voltage/Constant Current Boost converter to convert 6S to 15S voltage. Connects output to Mini charging port when riding. 90/65-6.5 All terrain tires. Handlebar, drink bottle holder and 6S to 4 x 5V USB converter.
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