The necessity for the system battery to approach its full 7.5V (NOTE: not full charge) before a depleted backup battery will recharge you will find many references to in these forums. The ceiling for physical RAM in PB1xx (excepting the PB100) is 14MB of physical RAM. However, the PB180c requires a 'cousin card' to provide from 2 to 10MB extra, and these are not common, but you will find the gen for that also in these forums. Given a working floppy drive, an external SCSI CD-ROM or the means for a netbooted installation, you can replace the current software with something more familiar, and just live with AZERTY rather than QWERTY. Or you could replace the keyboard. Working on the inside of a PB1xx is straightforward, so you could also replace the HDD, albeit that either 17mm (thick) or 9mm drives are scarce, nowadays.

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