Raspberry Pi 4 Game boy

[Devryd]

Hi, I am not sure whether this is the correct sub forum, but I am currently building a Game boy based on the Raspi 4. I am wondering if the adafruit pb1000c with a 3300mAh Lipo will provide sufficient power. Also I dont really know, how the battery life will be. If anyone has a different idea on powering it, pls share them. Has anyone here already built something similar? Do I need a fan to cool the Raspberry pi?
I built a gameboy zero in 2016 but this is a little different i guess.

[WereCatf]

16 minutes ago, Devryd said:

I am wondering if the adafruit pb1000c with a 3300mAh Lipo will provide sufficient power. Also I dont really know, how the battery life will be.

There's literally no way for us to tell you. It all depends on all the components you plan to use, whether you modify the board itself and how good you are at optimizing the system.

17 minutes ago, Devryd said:

Do I need a fan to cool the Raspberry pi?

See above.

[Devryd]

For components, i only need the Raspberry Pi 4, an arduino leonardo pro micro for the inputs and a display.
I might add sound later, but for now, the onboard sound should be sufficient. 

[Alexeygridnev1993]

On 2/7/2021 at 4:34 PM, Devryd said:

Hi, I am not sure whether this is the correct sub forum, but I am currently building a Game boy based on the Raspi 4. I am wondering if the adafruit pb1000c with a 3300mAh Lipo will provide sufficient power. Also I dont really know, how the battery life will be. If anyone has a different idea on powering it, pls share them. Has anyone here already built something similar? Do I need a fan to cool the Raspberry pi?
I built a gameboy zero in 2016 but this is a little different i guess.

Well, you can make some calculations. RPi foundation recommends to use a  15 W power supply to power RPi (5V, 3A). So we should assume that RPi with all the peripherals can consume up to 15 W at maximum load. 3300 mAh = 16.5 Wh. Which means that you should not expect much more than 1 hour of battery life if RPi is under full load (maybe you can stretch it to 2 hours, e.g. by some underclocking and undervolting, but not any more than that). Plus, make sure that any power source you're using can deliver 3A at peak load (the description of the battery you are planning to use seems to suggest it can deliver only up to 2.5 A of peak current).

 

And - yes, you do need a fan or a large heat sink. In my experience, a small metal heat sink is clearly insufficient for RPi 4 at least if you're trying to use it as a desktop, even when it is not overclocked.

[Devryd]

I now finished the build. I have about 45 mins of battery life. Its not much, but I also have absolutely no space left for a bigger battery