Question PS2 Slim 77001 battery options

[m0thm4n]

Hi! I’m currently planning out some projects with four Ps2 Slim 77001 motherboards (broken drive consoles). I know this revision doesn’t really have much trim documentation so the plan so far is to make sort of a mini laptop with an untrimmed board, a 7 or 8 inch display, internal FMCB card + MX4SIO style SD storage, as well as bluetooth for a single controller.

I’m stuck on if I should go full on portable (with batteries), or if I should keep it semi-portable (requires external power).

I have 10-ish years in electronics, but have never worked with batteries before, so I’m not sure where to start. Since the board won’t need external voltage regulation, I think a PS2PMS type solution may be unnecessary. I’ve also read through the “Portables and Batteries” guide so I’ve became a bit familiar with some of the terms.

With all that being said, here are my questions:

1. Exactly what solutions would be usable for battery powering the 77001 board + a display?
(Also diagrams/photos/links are super helpful)

Mainly confused about amperage as well, and possibly there’s something I’m not fully understanding when it comes to how it applies to battery power. The stock power adapter says it outputs 5.65A, so would I need to match that?

2. How long would battery life be in general? Would it be longer if more batteries were added?
(Case space wouldn’t really be an issue)

3. Would it even be worth making it fully portable with all things considered? (mainly battery life)

Thanks in advance for the help!

 

[Jonny]

All things considered, its not really worth it to do anything with 77000 model machines. What I would recommend you do is replace all the disk drives, and turn them over for a profit. you can find 79k ps2s on eBay for less than $40 shipped, and if you flip 4 fully tested and working 77k's you can do pretty well!

The only other model of ps2 I think anyone might be interested in portablizing would have to be a 70k, only because they have pinouts for IDE so you could install a hard drive and boot games from HDD. They're still gonna be a lot more power hungry than your run of the mill 79k, but I think a HDD loading laptop might be a fun concept to experiment with. but that's something I'd stick on the shelf for a while, and not what I would focus on for a first portable if I were you.

As for your question on amperage, devices only draw what they need, and it does not need to be matched like voltage does, per se. You can power a device that is rated to draw 1A from a supply that is capable of providing 10A with no issues. However, you also need to consider that if your PS2 draws more than what your power system can supply then it can potentially lead to damage (or more likely it will just turn off). I don't know the wattage draw of the different models of PS2 off the top of my head, but you should totally be able to measure yourself with a multimeter. once you have that, you just need to make sure the batteries you select can support that output.
Definitely do some youtube research on batteries and their "C" rating if you have more questions about that. I think GreatScott has a couple videos that explain it pretty well if I remember correctly.

All in all the 77000s aren't really worth your time to portablize. But i look forward to seeing whatever it is you decide to do!

 

[m0thm4n]

All things considered, its not really worth it to do anything with 77000 model machines. What I would recommend you do is replace all the disk drives, and turn them over for a profit. you can find 79k ps2s on eBay for less than $40 shipped, and if you flip 4 fully tested and working 77k's you can do pretty well!

Hi! Thanks for the reply

I watched a few of the videos you mentioned and they were super informative, definitely understanding batteries a lot more now haha. But yeah, from my rough estimates I've done this weekend it seems like battery life for one of these boards might suck pretty bad on the stock regs.

Also got two of the 77000 consoles working now so I probably will flip a couple and save one or two for this project after I brainstorm some more. Thinking I'll still go with the laptop style idea but have it just run off the DC adapter as a semi-portable console. I'll probably make a video or project log when I get around to it after finishing the Ashida I'm working on.

Thanks again for the advice / info!