Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
July 23, 2013
Patent Application Number
13094238
Date Filed
April 26, 2011
Patent Citations Received
Patent Primary Examiner
Patent abstract
An electric wheeled apparatus comprises a main body, a drive wheel supported by the main body in a rotatable manner, an electric motor configured to apply torque to the drive wheel, a battery holder configured to removably receive a plurality of battery packs, and a circuit unit configured to electrically connect one or more battery packs attached to the battery holder to the motor regardless of a number of battery packs attached to the battery holder.
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