Hugh%20Piggott%20Axial-flow%20PMG%20wind%20turbine%20May%202003. Pedal powered farms and factories: the forgotten future of the stationary bicycle. Home Power Magazine: Solar. Battery and power. From OLPC Removing the battery from a B4 model OLPC laptop.
OLPC has put a lot of effort into building a device with very low power consumption as it will be used in areas with poor or non-existent power infrastructure, with electricity often very expensive for the user. Early concept devices were shown with a hand crank on the side to demonstrate that they would work in areas where the only electricity available comes from devices like the Freecharge portable charger. This was removed due to concerns about stresses on the casing, and also ease of use. Replacement Batteries and Chargers.