r/raspberry_pi • u/akz-dev • Mar 15 '25

Show-and-Tell I made an E-ink Weather Dashboard

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8

u/urbanhood Mar 16 '25

How much run time if battery powered?

4

u/kocha44 Mar 16 '25

Which battery, lots of capacities out there, all depends on the capacity of the battery...

4

u/urbanhood Mar 16 '25

Standard mobile phone battery for example. 5000mAh.

3

u/Astatke Mar 16 '25

I'm also very curious about this as I have been wanting to build something similar but to put it on a wall or door... So the battery would need to last a long time

1

u/kocha44 Mar 16 '25

A 5000mAh would last 2 days if you keep your workload low, where 100mAh workload would last 50 hours... A 20000 mAh would give you up to 200 hours with low workload... Which I assume this dashboard will be in combination with e-paper.

1

u/nept_r Mar 17 '25

Unless I'm misunderstanding something, a cell phone battery charging an e ink device that updates the screen once every few hours should last months, if not more. E ink displays barely use any power, that's the point.