Laptop Battery Connector Repair - Jan 2025

Fixing some traces that a friend of mine decided to remove from the board

DESCRIPTION

A friend of mine tried to replace the battery of a shitty Asus laptop and decided that the connector did not deserve to live.
I had to replace the missing traces with 0.1mm copper wire and try to solder the very damaged connector, I’m somewhat of a surgeon I guess.

GALLERY

The connector and the PCB with the missing traces

The connector seen from below

The connector seen from the front

The connector seen from above

The PCB after a bit of cleaning

My beautiful replacement traces

The connector soldered back on the board

The finished repair after some silicone job

I’ve never been happier to see this logo on a computer

MORE INFO

Torn off traces are actually easy to trace back to their source, this becomes a real PITA when traces disappear and vias get destroyed too…
In this case, the two traces in the middle are probably for I2C, SDA/SCL lines.
I am not sure about the purpose of the third trace I made with the 0.1mm wire, it might be a thermistor if I have to guess.
The 4 last bigger connections are two pairs of positive and ground wire, I remade those with an ugly solder blob and some 0.5mm wire stolen from an old transformer.
The silicone part is very important I think because as this is a laptop, it will get shocked around and since the connector is not as robust as it once was… Better be safe than sorry.