TheCreatorOfC
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Location: Rawl Springs, MS

What is a good Power Bank for Raspberry Pi Zero W?

Sun Jan 13, 2019 11:40 pm

Hello everyone! Im gonna start building either a RC Car or a toy gun which makes sound,

I only have $18.17 (i had gotten a visa gift card for Christmas which has that much on it, i dont think i used it though) i do have $33 real cash though

I would want to buy a power bank from Amazon, and maybe Walmart if they sell power banks there

EDIT: I found one and i am 99% positive that it’ll be good for the Raspberry Pi Zero W. https://www.amazon.com/Plugable-Chargin ... lp_pl_dp_3

PhatFil
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Location: Oxford UK

Re: What is a good Power Bank for Raspberry Pi Zero W?

Mon Jan 14, 2019 2:49 am

The device linked to is a charging hub that will require a 5v 2.5a dc power supply to run your pi with.

Its sold as a Pi solution as it can both provide power for a pi and its usb devices such as disks etc.

if its a low cost psu to provide power for the pi via the mains electricity supply, then you can use something way cheaper, fwiw i use a £shop ($shop in the uk) usb charger rated at 2.1a to provide power to both my Pi-0W which runs headless without anything plugged in via usb or gpio, and a small rf/wifi bridge device from a single power socket.

However both your suggested projects sound like you want t use battery power and powerbank is a term usually used for battery supplied dc power devices?

as for whats the best option, that depends totally on exactly what devices are attached and will draw power and how long you want the device to operate for on a single battery charge. a £shop single 18650 lipo battery power bank can power a pi-0w and may be sufficient to provide power to a toy gun sound maker for hours of fun, but try powering a rc car controller and its motors for longer than 5 minutes,,, not that you would..but i am stretching credulity to make the point ;)

W. H. Heydt
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Re: What is a good Power Bank for Raspberry Pi Zero W?

Mon Jan 14, 2019 5:12 am

I use these https://www.monoprice.com/product?c_id= ... 1&format=2 to power Pi0 or Pi0W projects. It will run for about 12 hours at a time. Very recently, I've been successfully powering a Pi3A+ with one, but that depends on how heavily you're going to load the CPU.

drgeoff
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Re: What is a good Power Bank for Raspberry Pi Zero W?

Mon Jan 14, 2019 12:51 pm

PhatFil wrote:
Mon Jan 14, 2019 2:49 am
The device linked to is a charging hub that will require a 5v 2.5a dc power supply to run your pi with.
The device linked to is a charging hub that comes with a 100-240 volt AC to 5v 2.5a dc power supply.

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FTrevorGowen
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Re: What is a good Power Bank for Raspberry Pi Zero W?

Mon Jan 14, 2019 7:02 pm

FWIW, over the years I've measured the static loading behaviour of a few powerbanks:
http://www.cpmspectrepi.uk/raspberry_pi ... 2FChargers
Trev.
Still running Raspbian Jessie on some older Pi's (an A, B1, B2, B+, P2B, 3xP0, P0W) but Stretch on my 2xP3A+, P3B+, P3B, B+, A+ and a B2. See: https://www.cpmspectrepi.uk/raspberry_pi/raspiidx.htm

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