There we go…
2x 18650 serial connected, Thats 7V to 8.4V with around 6Ah Capacity thats around 45Wh.
I used 4% of my 20Ah Powerbank ( around 100Wh) yesterday in 2h. Thats around 2Watt of powerconsumption (very very rough calculate!) Thats would mean, I can use my Handle for 22,5h! To be save, I will calculate with 10-12h, thats more than enough for a day!
Why am I faster, than Elektron?
I am okay with 3d printed parts. People who pay for it, won’t. While I think, that they will use the same type of cells, they will have more features in it. I am quite sure, their Handle will have an USB Port to recharge the handle. Mine doesn’t have one! I need to use the charger for it, I use with my model airplanes.
I don’t have to setup a production with it. I don’t have to certificate it as electric device, I don’t have to care about recycling of batteries, because I don’t sell them. I don’t have to make sure, that everyone is able to use it, without hurting themself…
I am quite sure, that I will buy the official handle, as soon as it is available, just for the USB Charging tho.
Until then, I am happy, with my orange GFK handle 
