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Let's be honest, those 40W spikes are due to video playback and/or other GPU bound tasks. Sorry, wait for the battery on those. But booting the OS should be unconditionally permissible on AC power.

So design the OS bootstrap to never spike consumption past the load capacity of the power supply. Once booted, deny access to processes that will slam power consumption, until you have a sufficiently energized battery.

Hey, presto, a weightless solution solved in software without any additional added mass!




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