Power packs were used to power the sleds that the colonists used on Pern.

When Thread started falling, pilots fought Thread using the sleds. Because the power packs would not last through the projected decades of Threadfall, another solution was adopted: genetic engineering of the fire lizards into fighting dragons.

When Ross Vaclav Benden landed on Pern in response to the distress call, he had some power packs that he and Stev Kimmer could use in Kimmer's sled so they could check for other survivors.

Community content is available under CC-BY-SA unless otherwise noted.