Since you're at the guessing stage without any specs, go worse case scenario until you do know what you need..I would like it to run in a semi idle mode for at least 4 hours, and be under heavy load (max CPU and ram utilization for 30 minutes).
5v at 5amps for 5 hours.
Until you know what you'll need that's the best we can do.
You can always build it using a power supply, set it up to run however it is going to run in the field and measure and record power usage. Once you know the required power usage you then have your specs info.
Until then, all you have is worse case scenario.
However, you should probably expect you're not going to get a Pi 5 running 5v at 5 amps for 5 hours from a powertool battery.
So you already know that for your worse case scenario, you're going to need something bigger than what you already said you don't want to use.
Statistics: Posted by memjr — Tue Apr 16, 2024 12:45 am