Raspberry Pi with LCD Battery/Powerbank
December 30, 2023, 08:04
What battery/powerbank do you recommend that is portable for mini projects.
never tried them, simply because I've never needed an actual battery before but it would be my first choice and whenever someone asks it's what I always recommend
It depends largely on the Raspberry Pi model! As the different model has very large differences in power consumptions, a Raspberry Pi Pico can be used with any power bank to Raspberry Pi 5 that from AFAIK there is NO power bank that meet the specification.
And the other factor is time, how long time do you expect it to operate ?
yes exactly, uhm I do have one question tho these are 3.7v if you have two of them in parallel won't it produce 7.4 v?
In parallel = 3,7v / 2x 2000mAh
In series = 2 x 3,7v / 2000mAh
ah ok
well yeah do that then
and if you have the pi 4 that would last 3 hours and 42 minutes
That is an incorrect assumption!
I mean it's an estimate
also I must mention that's the pi 4 idle
That was my point, you can NEVER give hard figures for a system that has a variable load!
yeah I should have said that
idle is the absolute lowest so that is the absolute best scenario of an estimate. I just use that because no one online tells you how much it consumes under a medium load, and that's for a good reason, like oopse said you can't give good figures for that sort of stuff so I just had to use what I've got
RPI 4
what do you recommend
How long battery time do you need?
maybe 3-8hours
And what app/load is the Pi running?
https://www.pidramble.com/wiki/benchmarks/power-consumption
An example, 1,3A/Hour x the expected time running = Power Bank
1,3 x 3 = 4 000mA Power Bank
1,3 x 8 = .....
The power consumption could been higher if you add USB devices or draw power from the pins.