Question Quel BMS / circuit de charge doit être utilisé pour un ordinateur portable PS2 ?

[groseil]

Hi!

I was in the process of building my PS2 portable thinking everything was ready so I could finally finish it… only to realize that the module managing my 4×18650 cells isn’t powerful enough.

My console consumes, including the screen, amplifier, etc., around 5V ~3A, and it could potentially draw more in the future.

This is the module I was using:

https://a.aliexpress.com/_mrVhVyt

On the output side it can only provide 5V 3A max, which is pretty close to the limit. It can also output 9V and 12V, but only through Power Delivery.

I don’t know much about batteries and BMS circuits, so if someone could shed some light on this it would be greatly appreciated.

Thanks!

 

[VariablePwn]

This module was the one I used (ordered blank boards, then assembled): https://bitbuilt.net/forums/threads/ps2-pms.6730/
It works great, but does require a bit of modification to use the charging circuit. I ended up using an external charging board (like this one), which got a bit warm and needs either a heatsink or a bit of modification to reduce current draw.

If you wanted to use that board, and the 3A is max spec, I would highly recommend putting on a little heat sink (make sure you don't short anything).
Otherwise I think Legend is designing a PS2 PMS, but that's a while away at the moment.

 

[Luigid]

It's actually a lot of energy, if you want take a look at my worklog I'm just posting a pretty "massive" update for the regulators, I manage to stay between 8W and 9W, if you can do some tests to understand if you can for example use that PMS directly to the batteries so as to leave the 5v rail less loaded