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Help Testing a Laptop PSU IC

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CalebHansberry:
Hello, I really need help testing a laptop power supply. The laptop is a Lenovo IBM ThinkPad T60p, and what I believe is the PSU (can't be totally sure as I don't have a schematic which costs money) is a Toshiba TPC8109. The datasheet can be seen here: http://pdf.datasheetcatalog.com/datasheet/toshiba/2849.pdf

I have a multimeter and a/c adapter, and similar tool, if I need to test resistance, or do anything about running voltage through it, I dunno? Never tried anything like this before, but I really need to get this IC tested.


EDIT: It's significant to note that when running, this laptop states the battery level as being 99%, but it obviously will under no circumstances run without the charger; the battery isn't really at 99. Butt assorted battery programs say it is, which could be a good clue! Also, in BatteryMonitor, a good deal of information is "not available", like Charge Rate and Charge Cycles.

Vogtinator:
The "PSU" you linked to is just a MOSFET, no logic.
I'd assume that the battery (probably its controller) is broken.

CalebHansberry:
Haha, thanks for that much info at least, I wouldn't tell them apart. And very few people I know could either...
I don't think the battery is harmed, as I bought it on eBay working from a good seller... but I can't be 100% certain. Perhaps 80%.
Do you know of a way I can test to see if anything is wrong with the battery? I really gotta test either the motherboard or the battery *somehow*, or else I'd buy a new battery to see, and it'd not work, then I'd buy a new motherboard, and I don't have that much money for that. Surely there's a way to know which is at fault?

Vogtinator:
It's most likely a proprietary protocol that's used to communicate between PSU and battery. Without this communication, the battery will not load or give much power.
You can try to measure battery voltage while it's plugged in. Some laptops also have some settings in its BIOS.

CalebHansberry:
Hmm, I'll try. If you have any suggestions as to how to try to measure the battery voltage that'd be fine, though I'll certainly try to do my own research. Will I accidentally blow up the battery if I somehow short it? (well prolly not since it prolly has no power) And if I succeeded in doing this - would that test the motherboard's ability to send power, or the battery?

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