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1. (WO2019032198) SYSTEMS AND METHODS OF HEAD-MOUNTED DEVICES WITH MIXED CAPACITY CELLS
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CLAIMS

1. An electronic device, the electronic device comprising:

a frame configured to be worn on a user' s body; and

a battery supported by the frame, the battery including:

a first cell having a first capacity, and

a second cell having a second capacity different from the first capacity, wherein the first cell and second cell are in electrical parallel.

2. The device of claim 1 , further comprising a tuning resistor in series with the second cell, and the battery has a first resistance across the first cell, a second resistance across the second cell and the tuning resistor, and the first resistance is less than 5% different from the second resistance.

3. The device of claim 1, the battery in electrical communication with a near- eye display supported by the frame.

4. The device of claim 1 , the first capacity being at least 5% greater than the second capacity.

5. The device of claim 1 , further comprising a third cell in electrical parallel with the first cell and second cell.

6. The device of claim 5, the third cell having a third capacity that is different from the first capacity and the second capacity.

7. The device of claim 1, the first cell being in electrical communication with the second cell through an elastically flexible member.

8. The device of claim 1 , the second capacity being less than the first capacity, wherein the battery further comprises a housing that tapers toward the second cell.

9. The device of claim 1, the device having a total capacity greater than 40 milliampere-hour (mAh).

10. The device of claim 1 , the device having at least one cell with a capacity greater than 20 (mAh).

1 1. The device of claim 1 , the battery being positioned in a band of the frame.

12. The device of claim 1 , the battery being curved in at least one direction.

13. The device of claim 1 , further comprising a thermal management device positioned contacting at least a portion of the battery.

14. The device of claim 13, the thermal management device being a passive thermal management device.

15. The device of claim 13, the thermal management device being a vapor chamber or heat pipe.