battery draining on sat nav

[raggedy b]

Hi am I right in thinking the 1020 needs 2amp power supply to use the sat nav,just bought a power supply for my bike which Amazon seller says is 2 amp,tried it on the way home this evening and battery went from 70% to 50% after twenty minutes which I guess means it's not up to the job,are all lumias high drainage when using the sat nav

 

[gpobernardo]

Hi am I right in thinking the 1020 needs 2amp power supply to use the sat nav,just bought a power supply for my bike which Amazon seller says is 2 amp,tried it on the way home this evening and battery went from 70% to 50% after twenty minutes which I guess means it's not up to the job,are all lumias high drainage when using the sat nav

Duplicated thread.

 

[raggedy b]

Yep can't find a way to delete it in the edit options