Handypiece operates on a low current draw from a Lithium Polymer 10.5 Ah battery. Depending on the condition of the sheep and how dirty they are this battery will operate the Handypiece so it will crutch between 200-300 sheep. The Handypiece's batteries are long-life, with an average of 80% capacity remaining after 1000 recharges. You can purchase additional batteries on request. Its 12-volt motor can be battery-back operated (when attached to a belt), or for continuous dagging, shearing or clipping cows tails the 5 meter extension cord can attached to your quad or farm vehicle.