[PLUG-TALK] RPI4B and power bank requirements

Rich Shepard rshepard at appl-ecosys.com
Sat Aug 8 21:45:13 UTC 2020


On Sat, 8 Aug 2020, Keith Lofstrom wrote:

> Tomas is correct. There is not enough information to compute amperage,
> which is determined by the power ratings of the components. You MUST
> consider the maximum designed POWER rating for the device (WATTS, or AMPS
> at given voltage), and make sure there is AMPLE margin.

Keith,

The power banks capacities, like all batteries, are presented in mAh. That's
why I wanted to know how to compare those values with the average power
draws of the hardware, presented in mA.

Rich




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