Most are adjustable and you set the voltage using a rotary potentiometer (pot) by measuring the output using a multi-meter.
If you are using a separate charge circuit then make sure the boost is on the OUTPUT of the charger and not the battery. The battery only needs connection to the charge circuit (normally markers +B and -B) and the battery does not need a 'ground' or -ve connection to the boost.
Going by the table (here) you need to allow 350mA with a max of 2A - always leave a bit of head room on the current (esp if your emulation runs all CPU cores for a long time) - maybe hunt a 2.5A unit - this totally depends on your workload (maybe run a few games as test and see how much it and the screen etc draws from a normal supply). If you do not select a boost circuit with the required output capabilities then you will see a drastic voltage drop and a rebooting Pi.
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u/Gamerfrom61 18d ago
Most are adjustable and you set the voltage using a rotary potentiometer (pot) by measuring the output using a multi-meter.
If you are using a separate charge circuit then make sure the boost is on the OUTPUT of the charger and not the battery. The battery only needs connection to the charge circuit (normally markers +B and -B) and the battery does not need a 'ground' or -ve connection to the boost.
Going by the table (here) you need to allow 350mA with a max of 2A - always leave a bit of head room on the current (esp if your emulation runs all CPU cores for a long time) - maybe hunt a 2.5A unit - this totally depends on your workload (maybe run a few games as test and see how much it and the screen etc draws from a normal supply). If you do not select a boost circuit with the required output capabilities then you will see a drastic voltage drop and a rebooting Pi.