Looking for a battery to power the raspberry pi 5.
July 13, 2024, 18:38
I’m making a retro computer powered by a pi 5 running batocera. I’m looking for a way to power it for at least 2 hours. I’m running a 7 inch touch-screen off a usb port so I probably need 5 amps.
there are cheap UPS pcbs available that take lithium batterys, this is what you need
can you send me a link to one?
also, I live in Ireland and find it hard to get lithium batteries delivered.
how long would something like this last?
depends on the capacity of the battery you put into it and the actual power consumption
Alright thank you. 🙏
do you know if there are any of these that run on AA batteries instead?
this is a bad idea, AA batterys are not powerful enough
why would you do that? 😂
18650 batteries are less reliable.
what?
how
wdym less reliable?
nvm
I thought they were more prone to exploding.
what no
they dont explode
but they can light on fire if your not careful?
the old ones did, like 10 years ago, but the chemistry has changed since... years...
the new ones are safe
alright, thanks. I thought ups were for backup power only in case of a power outage.
yes
but doesnt really matter, if you dont power it from the wall its basically the same purpose
I mean I thought they only lasted 10 minutes.
depends on the battery capacity and power consumption
there are simple formulas to calculate it
this would would too? https://www.waveshare.com/ups-module-3s.htm
probably
think so
Does the battery and pi need to be portable? If no, then a 12v 100 Ah SLA battery, a 5V 5A buck converter, and a solar panel with 12v solar charger works great. The pi can run almost indefinitely as long as there is not a string of cloudy days. Just add a 110v or 240v 12v charger and monitor the battery voltage using the pi, and have a programmable 110v/240v plug, and you can run indefinitely.
yes, it needs to be portable. Also, the pi will be inside a case so there will not be much light.
I realized yesterday that these ups are not suitable for mobile. The on/off button MUST be connected, otherwise the ups will not work...
oh, do you have any recommendations for a portable way to power it?
No, because I don't use the Pi as a mobile device.
Maybe the pi sugar?
they don’t have one for the pi 5.
waveshare does have a UPS for the pi 5
that gives 5V and 5A
but if I had the on off button connected would it work portably? And if so for how long?
But the button is quite big...
How long, I don't know, I don't use it mobile, only as a fuse in case the power fails, so that the Pi is not switched off hard.
In their own marketing on the page
They showcase it being used no?
Yes, but that doesn't work. I can only say what I have observed... So the button wasn't on, the Pi didn't turn on either. Only when I put the button on did the Pi come on.
Did you try it with this?
I have bought it but haven’t tried it yet, will be home in like 2 days
Yes, I've used this model.
Im doing a ground drone with raspberry pi 5 and im using this battery for raspberry pi and many other components like motor
https://de.aliexpress.com/item/1005006461333190.html?spm=a2g0o.productlist.main.13.1d0fSnxSSnxS1S&algo_pvid=f331ff40-5b5e-4ee8-8e5b-39b56adcf2fd&algo_exp_id=f331ff40-5b5e-4ee8-8e5b-39b56adcf2fd-6&pdp_npi=4%40dis%21MYR%21181.90%2180.03%21%21%21276.53%21121.67%21%4021411b6217211165041692000eb422%2112000037280932714%21sea%21MY%210%21AB&curPageLogUid=kKfuJ0IE7yIY&utparam-url=scene%3Asearch%7Cquery_from%3A
and its working fine for more than an hour
https://de.aliexpress.com/item/1005006245031670.html?spm=a2g0o.productlist.main.3.1d643403h0nV8p&algo_pvid=c68e7a91-43ef-465b-9595-77f7bd71bf37&algo_exp_id=c68e7a91-43ef-465b-9595-77f7bd71bf37-1&pdp_npi=4%40dis%21MYR%2119.28%214.74%21%21%2129.31%217.21%21%4021411b6217211166745258003eb422%2112000036448092869%21sea%21MY%210%21AB&curPageLogUid=HeO5VTkMThHN&utparam-url=scene%3Asearch%7Cquery_from%3A
but u need to connect the battery output to this voltage regulator and also step down the voltage to 5V then use an usb cable to connect to your rpi 5
theoretically this battery can drive full power rpi 5 for 4.7 hours if the manufacturer doesnt cheat on their specs
thank you, I have been having trouble powering my pi off usb A ports. You have tried this with a pi 5 and it works without any warnings?
It do have warning but still work
are you using an over clock?
they are if u damage them or charge them incorrectly
but AA batteries are disposable and u'd have to buy new ones all the time
unless u buy those rechargeable ones but theyre still quite a bad idea to use