US 12,339,324 B2
Determining state of charge for battery powered devices including battery powered surface treatment apparatuses
Kevin Kennedy, Quincy, MA (US)
Assigned to SharkNinja Operating LLC, Needham, MA (US)
Filed by SHARKNINJA OPERATING LLC, Needham, MA (US)
Filed on Apr. 22, 2022, as Appl. No. 17/726,631.
Claims priority of provisional application 63/178,924, filed on Apr. 23, 2021.
Prior Publication US 2022/0342001 A1, Oct. 27, 2022
Int. Cl. G01R 31/3842 (2019.01); A47L 9/28 (2006.01); G01R 31/389 (2019.01); H01M 10/42 (2006.01)
CPC G01R 31/3842 (2019.01) [A47L 9/2884 (2013.01); H01M 10/4207 (2013.01); G01R 31/389 (2019.01); H01M 2220/30 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A surface treatment apparatus comprising:
a surface cleaning head having an agitator and an agitator motor configured to cause the agitator to rotate;
an upright section movably coupled to the surface cleaning head;
a cleaning assembly including a dust cup and a suction motor;
a power source electrically coupled to the suction motor and the agitator motor, the power source having one or more batteries and a battery controller; and
an apparatus controller communicatively coupled to the battery controller through a wireless connection, the wireless connection being established via:
apparatus communication circuitry coupled to the upright section, the apparatus communication circuitry including an apparatus transmitter and an apparatus receiver; and
power source communication circuitry coupled to the power source, the power source communication circuitry including a power source transmitter configured to optically couple with the apparatus receiver and a power source receiver configured to optically couple with the apparatus transmitter.