After fitting new Dell type battery to my XPS 13 the laptop would not power up. Disconnected and discharged the BIOS then laptop powered up OK, but after 2 or 3 hours a "Battery not recognised" warning came up then shutdown almost immediately. On restarting laptop all OK for another 2 or 3 hours then message and shutdown.
The battery was not an actual Dell but was the recommended equivalent with all the correct markings. Help!