Power Draw Estimator.

KeyboardHand is powered entirely via USB-C. When tethered to a desktop, power is infinite. When tethered to an iPad or HMD, the active IR array will impact host battery life.

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Original Battery Life hrs

Adjusted with KeyboardHand hrs

Total Battery Impact Minutes

Total runtime lost across a 100% to 0% discharge cycle. The IR array maintains a steady 1.8W draw.

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KeyboardHand draws a steady 1.8W via USB-C. Impact on common hosts:

MacBook Pro 14": Loses ~45 minutes of runtime.
iPad Pro 11": Loses ~180 minutes of runtime.
Apple Vision Pro: Loses ~16 minutes of runtime.