Your Raspberry Pi Projects

Thanks, actually realised I'd need to use it to slice 3d files, so won't work... off to carb to look for a desktop.
 
MidnightZA said:
My Pi doesn't need to stay on, its just more convenient for home assistant though

I bit the bullet and got a Romoss Sense8+ 30000mAh from takealot, and slapped on a R300 voucher. A good option for R500.

ROMOSS SENSE 8P+ Power Bank

www.powerbankexpert.com www.powerbankexpert.com

This site says it can power the Pi. Its a bit overkill but then I can at least charge my phone in emergencies if there is extended power outages.
Click to expand...
Well this part sounds impressive:
"The power bank is between 101 and 160 Wh. You will need a special airline permit in order to bring it on board."

You sure it'll output 5V, 3A without using Quickcharge? Couldn't tell just by reading the main page. Anyway, I'm sure you'll report back once you get it.
 
K3NS31 said:
Well this part sounds impressive:
"The power bank is between 101 and 160 Wh. You will need a special airline permit in order to bring it on board."

You sure it'll output 5V, 3A without using Quickcharge? Couldn't tell just by reading the main page. Anyway, I'm sure you'll report back once you get it.
Click to expand...

Power bank got delivered now and it is HUGE. I was not expecting it to be so big and heavy (lol), according to the manual it weighs 671g.

Its charging now while at work, Ill test it out on the Pi after work and update
 
MidnightZA said:
Power bank got delivered now and it is HUGE. I was not expecting it to be so big and heavy (lol), according to the manual it weighs 671g.

Its charging now while at work, Ill test it out on the Pi after work and update
Click to expand...

Update: Its not working. I think it may be because of my SSD or the cable Im using doesnt support 3A.

I will try again tomorrow when I dig in my cable box for another USB C cable. Im using a 5V 3A power supply (from the Pi) to power the powerbank and then using the 5V 3A output from the powerbank into the Pi. It should work
 
Update 2: I got another type c cable to test.

If the power bank is disconnected from the power the Pi boosts up using the power bank only. As soon as I connect power to the wall charger the Pi shuts down and goes into a boot loop. The light flash a few times then goes off and repeat.

Not sure why it isn't working but I guess I'll just return the powerbank and try another method of powering it using my alarm battery
 
MidnightZA said:
Update 2: I got another type c cable to test.

If the power bank is disconnected from the power the Pi boosts up using the power bank only. As soon as I connect power to the wall charger the Pi shuts down and goes into a boot loop. The light flash a few times then goes off and repeat.

Not sure why it isn't working but I guess I'll just return the powerbank and try another method of powering it using my alarm battery
Click to expand...
Most power banks can't charge and power a device at the same time.
 
MidnightZA said:
Update 2: I got another type c cable to test.

If the power bank is disconnected from the power the Pi boosts up using the power bank only. As soon as I connect power to the wall charger the Pi shuts down and goes into a boot loop. The light flash a few times then goes off and repeat.

Not sure why it isn't working but I guess I'll just return the powerbank and try another method of powering it using my alarm battery
Click to expand...
I was waiting with bated breath to hear your results but that is exactly what I found with the powerbanks I tried.:(
 
Tinuva said:
Most power banks can't charge and power a device at the same time.
Click to expand...

The Romoss that I got has passthrough charging. It can charge at the same time while charging other devices. I tested it with my phone and it does work but my phone doesnt fast charge

I think since the input port is 5V2A, I may be wrong but I think this powerbank will only pass through the 2A from the input only and since the Pi is rated 5V3A so there is not enough juice for it to boot
 
MidnightZA said:
Update 2: I got another type c cable to test.

If the power bank is disconnected from the power the Pi boosts up using the power bank only. As soon as I connect power to the wall charger the Pi shuts down and goes into a boot loop. The light flash a few times then goes off and repeat.

Not sure why it isn't working but I guess I'll just return the powerbank and try another method of powering it using my alarm battery
Click to expand...
It's the power bank that you're using that has an issue. It's trial and error to find a powerbank that will work properly.

I use an Orico K20000P for my router, it reboots when the mains power is switched off or on....but other wise works 100% (15V1A using converter)

I have a romoss that works perfectly, just need to rescue it from my wife.

I have another romoss that doesn't provide enough power when it's charging, so ampage is low.
 
Hamish McPanji said:
It's the power bank that you're using that has an issue. It's trial and error to find a powerbank that will work properly.

I use an Orico K20000P for my router, it reboots when the mains power is switched off or on....but other wise works 100% (15V1A using converter)

I have a romoss that works perfectly, just need to rescue it from my wife.

I have another romoss that doesn't provide enough power when it's charging, so ampage is low.
Click to expand...

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RAVPower 20000mAh PD 60W – Power Bank Expert

www.powerbankexpert.com www.powerbankexpert.com

Think this will work has 5V3A input and output as well as passthrough charging.

Alternatively, I can just get this and connect it to my alarm battery. Ill upgrade my alarm battery to a LiFePo when this one dies and I think that will keep my Pi and alarm going for a good few hours
 
MidnightZA said:
The Romoss that I got has passthrough charging. It can charge at the same time while charging other devices. I tested it with my phone and it does work but my phone doesnt fast charge

I think since the input port is 5V2A, I may be wrong but I think this powerbank will only pass through the 2A from the input only and since the Pi is rated 5V3A so there is not enough juice for it to boot
Click to expand...
This sounds right.
Most powerbanks do passthrough charging these days, but they never tell you how much power they're passing through. They need to charge the onboard battery as well, after all.
 
MidnightZA said:

Takealot.com: Online Shopping | SA's leading online store

South Africa's leading online store. Fast, reliable delivery to your door. Many ways to pay. Shop anything you can imagine: TVs, laptops, cellphones, kitchen appliances, toys, books, beauty & more. Shop the mobile app anytime, anywhere.
www.takealot.com www.takealot.com

RAVPower 20000mAh PD 60W – Power Bank Expert

www.powerbankexpert.com www.powerbankexpert.com

Think this will work has 5V3A input and output as well as passthrough charging.

Alternatively, I can just get this and connect it to my alarm battery. Ill upgrade my alarm battery to a LiFePo when this one dies and I think that will keep my Pi and alarm going for a good few hours
Click to expand...
That sounds like the easiest option.
Well, maybe second-easiest - to my prior point - if it's worth this much effort, may as well use a full-blown UPS, unless you have space issues.
 
K3NS31 said:
That sounds like the easiest option.
Well, maybe second-easiest - to my prior point - if it's worth this much effort, may as well use a full-blown UPS, unless you have space issues.
Click to expand...

I actually have a UPS that I previously used for my Pi. The UPS is laying dormant next to a PC I havent used in months. The main issue is that the UPS goes off after exactly 60min and I cant find a way to disable that.

Also to go from AC Input > DC battery > back to AC output > then back to DC power supply is not very energy efficient.
 
MidnightZA said:
My Pi doesn't need to stay on, its just more convenient for home assistant though

I bit the bullet and got a Romoss Sense8+ 30000mAh from takealot, and slapped on a R300 voucher. A good option for R500.

ROMOSS SENSE 8P+ Power Bank

www.powerbankexpert.com www.powerbankexpert.com

This site says it can power the Pi. Its a bit overkill but then I can at least charge my phone in emergencies if there is extended power outages.
Click to expand...

I noticed this Romoss supports 9V2A input, so in theory if I had to get a 9V power supply it would be able to power the Pi? ie 18W input and max 15W power draw on boot?

Unfortunately I cant test it, I returned the power bank yesterday
 
Heres my next attempt to power my Pi during load shedding. I got a 5V3A DC to USB converter from PiShop. Connected it up to my alarm battery. Doesn't boot up at all. I can charge my phone from it and I can power my google mini so the wiring is correct.

Dual USB 9V/12V/24V/36V to 5V Converter DC-DC 3A Step Down Power Module

With a load capacity of Maximum output 3A in total on both ports. This module is perfect for powering most small electronic projects
www.pishop.co.za www.pishop.co.za

I give up trying to make it efficient. I'm just going back to the basics now. Im going to use my UPS and just power it using the AC wall power supply.

I
 
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