Seeking X40 4-cell battery

[shepseskaf]

This may seem like a strange request, but I'm seeking a used 4-cell X40 battery that doesn't need to be 'good'. In fact, I prefer one that is discharged (dead), that I can get for cheap.

I already have an 8-cell battery for travel, but just want the standard size that fits flush on the machine to be used when its on AC power.