Battery Life

[NHBob]

Does leaving the Bluetooth and WiFi enabled (if both are not being used) drain the battery faster?

[scubadoo]

Try Google with your exact question wording. Cut & paste if you like.
Thousands of answers in a fraction of a second.

[NHBob]

google does everything for cell phones but not a tomtom - I hv a TT one v2 - I tried searching b4 asking

[ktx]

I have always wonder about that to.

[Boki]

Of course it is using power, it mean use battery juice. It mean less duration.
Just think logic, no need for google.
Each active device/chip consumes power in the standby mode - this is the first.
Even you don't use WFi/BT, these chips scan the environment in search of another device/sygnal. Wifi primary.
And this applies to all mobile-type devices.