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    Kepler Friction drive comes of age.

    Hi, Really nice mechanical design there. Nice to see how this system keeps on getting better. Although I'm less charmed by the latest evolution of the mounting position of the servo actuator. The nice thing about the whole design is that you only need one simple and universal mounting...
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    Lightweight build Q100 cst 201 at 14s

    Hello Leo99, I'm working on almost the same config as yours. stealth 26" commuter bike, high cruising speed (35-40km/h)with only minor assistance needed. battery range for 15 km. I read most of this post but I did not find which type of battery you finally chose. Could you give me some...
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    Searching for small capacity 36V battery packs

    It seems as if Horcura is the European version of greenworks. Looks completely the same, except for the colors. At this moment there is a nice price deal on the official Horcura website: 69.9€ for the 4Ah battery...
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    Searching for small capacity 36V battery packs

    HKM akkutechnik sells Li 36 Volt Rotak battery (used housings, new cells) also with Samsung cells, good for 5Ah pack for 159,99 €. HKM akkutechnik claims continuous discharge 40 ah seems perfect solution for me, except for the expensive 36V Bosch charger maybe. Any idea what to do with the...
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    Searching for small capacity 36V battery packs

    Anyone experience with this Bosch 36V 4Ah Coolpack (1300 gram)? https://www.buyaparcel.com/p/batteries-and-chargers/bosch-36v-4-0ah-battery-pack-lithium-ion-cool-pack-li-ion-1600z0003c/ not the cheapest if you look at price per Wh, but I suppose reliable plenty charging cycles? But how...
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    Searching for small capacity 36V battery packs

    Hello, Can anyone tell me why it is so difficult to find "off the shelve" 36V battery packs with small capacity? Like between 4 and 7 Ah? Most water bottle and other types have 10s4P heavy battery packs starting from 9Ah that I'm not interested in. (I only need like 15 km range, light...
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