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Yep

Sounds like the battery is toast. There's no way to revive it, and charging it could be dangerous. Best to get rid of it at this point.

These regulators have been used in the past, but have become such a liability that we don't recommend them ever. They get extremely hot, have terrible efficiency ratings, and are prone to killing whatever they are wired to. If you had issues with the PTH08080s, then you were either wiring them...

Looks neat! Have any pictures of the inside?

This motherboard is dead, you've burned too many critical points to a crisp. You should buy some magnet wire and flux, and practice soldering to the vias on this dead board before you try again on another Wii. The board should look just as pretty as before when you are done soldering to the...

It's hard to give a certain value of "this hard" for something like trimming. How much soldering experience do you have? How good at you at following guides? Usually after you get one trim done though, someone clicks and future trims are much easier. As far as potential costs for...

Stop with the boost converters. Boost converters are bad. You may need a specialized smart charger to use with your 14.8v pack, depending on what protection circuit you end up using. Other than that though your plan sounds good. Check the guide section for an in depth explanation about how...

Yikes. There is something very wrong with the way you are soldering. The board should not be blackened to a crisp around those vias. What kind of soldering iron and what level of heat are you using? Try cleaning the board with isopropyl alcohol to see what comes up and what doesn't, but you...

What makes you say that Gman doesn't use a fan on his PS2 portables? The GS2 and Razor definitely have fan vents.

To answer your original question: You shouldn't use any part of this pack at all. Sketchy batteries are a bad idea. Boost converters are a bad idea. You need to get some legitimate 18650 batteries (These will run you $20-$25) and a protection/charging circuit for said batteries. Boost...

Possibly? Pictures would help.

That sounds like a problem on your end somewhere. Do you have some pictures of your soldering job on the regs? And what power supply are you using?

https://www.volgopoint.com/volgoshopping/product/l7009-7-0-tft-lcd-screen-car-reversing-rearview-monitor-w-vga-bnc-av-input-stand-black-2/?v=7516fd43adaa

Those will not work. I'm unfamiliar with the best place to source PTHs in Europe, but @Nold and @BocuD likely know

I'm not an expert on the PS2 and it's voltage needs, but it sounds like your batteries aren't providing enough oomph to actually power the PS2, since the charger is able to keep it running. What kind of batteries are you using?

Pictures please

If the board is trimmed, then you don't need to worry about cutting the U10 trace

What specifically do you think you have a short on?

Nope, that looks to be only 99% perfect, so just start over again and send that one to me. I'll make sure it gets disposed of properly. that thing is 2sexy4me

How thoroughly have you tested this feature? I feel like messing with the U10 to engage a reset isn't a great idea, espescially when a switch between a pin and ground... is how reset normally works anyways, but in a less jank way.