open source project: hand crank
existing products
Each web page in this series starts with a review of existing products, followed by an open source specification for the tool set.
open source specification
This is an open source specification for one component in a tool set.
If you are interested in the tool set you mat want to start at tool set overview page.
The device has a hand crank, which can be used to power some features even if the battery is completely dead. The hand crank can be removed and the generator powered by wind, water, or other methods, potentially with enough energy to completely recharge the battery.
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