To charge the batteries of HandEnergy you need to spin it for 40-60 minutes. It's not that long and hard and it trains your hands. The speed of charging a smartphone or other device from HandEnergy is the same as from a socket or. If you spin HandEnergy and charge a smartphone directly it will take 30% more time due to lower current.
We are limited to batteries available in the market. And these are not the best to fit into a small spherical body. With your support we will be able to order custom made batteries to increase the total capacity. We also pay extra attention to battery choice due to recent explosion cases.
Obviously a powerbank needs to be charged and a solar panel needs sun. HandEnergy provides complete electricity security and independence. And it gives you a new feeling of being a small power plant :-)
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