Im creating an offgrid content server with the pi 5, (grid down lost comms sort of thing) no issues so far with the build but looking for the most reliable trusted powersupply from 11 to say 15 volts input to power the pi, costing of the project is adding up so im after something that i can trust that wont fail and destroy the Pi, ssd and associated electronics etc. Thanks.
2 Likes
Can you provide more details ??
What will be the input to the power supply, mains, battery, solar, etc.
How much current will it need to provide.
There are many reliable power supplies, having more details would help narrow in on the one right for you. With the input to be 11 to 15 volts, a deep cycle gel battery, similar to those used in caravans, comes to mind. But then it would need a way to charge it. I assume the server would draw maybe an 1 amp or 2, how long the battery is to provide this would determine the size.
Anyway more details would help.
Cheers
Jim
2 Likes
Sorry, I should have given more details. I spend a lot of time in the bush away from cell reception and offgrid camping. I have set a Pi up as a wifi hotspot/ server to access wikipedia, pdf and kiwix files/videos and openstreetmap from a tablet or phone, via the hot spot. Basic setup with Pi 5, SSD, active cooling fan etc, on tge bench i just supply it with a normal 240/5.1 pi powersupply, offgrid i carry 12.8 v lithium batteries in my ute and also with my ham radio gear. I also have one of those lithium car battery jump starters at present which has 12v and usb ports on it, im just looking for a reliable trustworthy buck or linear controller/ regulator tgat will power tge pi satisfactorily. Current drain (not measured yet) could be over 3 amps, but doubt is would be over five, i believe the processor could be working a little hard on this project, been playing with an AI same voltage conditions and it will be running hard.
I know core will have something suitable but didnt know which regulator would be bomb proof, thanks
2 Likes
Thanks for your reply. So 12.8V lithium to 5V for Pi system.
I would look at Pololu products first then DFRobot for power supplies. Both manufactures supply excellent products although sometimes a little expensive. Core Electronics have a huge list.
If you reckon it will be over 3 amps, start with 5 amps and up or split it into two or more systems depending on what needs to be powered at the same time.
All the Pololu supplies I have used have worked flawlessly but in a hobbyist environment.
Another option would be to use an enclosed DC to DC convertor as would be used in a marine situation. They are usually manufactured to a high standard and for rugged conditions.
Cheers
Jim
3 Likes
