The number is most frequently searched by people looking for replacement screens or batteries . If your device has a cracked digitizer or won't hold a charge, you need parts explicitly listed for 4BA63 or 4BA6.001.02.
: The internal rechargeable battery typically provides up to of autonomous use. Included in the Box (Standard) TomTom GO Basic 6 Reversible Window Mount Car Charger & USB Cable
Includes TomTom Traffic and Speed Camera Alerts (usually via smartphone connection) to help avoid delays.
They were wrong.
TomTom 4BA63 (part number 4BA6.001.02) is specifically the TomTom GO Basic 6-inch satellite navigation device.