Lenovo ThinkPad P15 Gen2 Battery Mosfet Replacement

[Grafnus]

Hey there,

first time posting here. I have been lurking a bit trying to find a solution but with little to no avail.

So I have a Lenovo ThinkPad P15 Gen2. When I got it (for free) it was turning on but not charging because the battery was unplugged. When I plug the battery in, the Laptop won't boot at all.

Specs:

• Type: Lenovo ThinkPad P15 Gen2 20YQ-001KGE
• CPU, GPU, RAM work fine (not involved in the Problem)

So the first thought was to toss the battery and get a new one, as clearly the BMS is throwing errors or something.

Now I noticed some surface mounted components missing right behind the port the battery plugs into the motherboard. My thinking now is to just order these components and replace them.



What components would I use to replace the ones missing here? I have found the schematics here: https://www.badcaps.net/forum/troubl...ptor-blackbird
But the schematics are a bit overwhelming for a software guy.

I appreciate any help.

[khaahk]

From the picture it looks like these components have not been populated at all. PC0201, PC0204 are marked in the schematic with @ sign (not installed). Still you might have a problem with battery or charging circuit.