I initially considered measuring the cartridge +5V rail directly, but decided to go with total power consumption of the console for two main reasons: 1. Total

I initially considered measuring the cartridge +5V rail directly, but decided to go with total power consumption of the console for two main reasons: 1. Total power consumption is easier to relate to battery life, because e.g. doubling the total power consumption roughly halves battery life 2. Cartridge current draw on +5V rail doesn't fully capture the impact on total power consumption. Improper bus behaviour and leakage currents can increase current draw on the console itself. As an extreme example, shorting one of the cartridge I/O pins to ground might not pull any current from the cartridge +5V rail, but it might increase current draw and power dissipation in the main SoC significantly if it's driving the I/O line high. In any case, optimally I'd have a setup for measuring both :) But right now I only have test automation infrastructure ready for HMC8043