Hi

When my Zumo is not in the cradle without external power, the brightness is low, 40%.
In menu there is an option (under screen option, brighness) to increase the value from 40% to 100% but when I do it, it say that only with external power.

In the past I've issues with battery drain. (Now I've a new battery)
If the unit it's always connected to the cradle (most of time) battery is always loading and as I know, this is not good.

I've installed a switch to manage the battery power but, when the unit is in the cradle without external power, the brightness is at 40% and this is not enough to use the gps with security on the motorbike (when sun is shining it's impossible to see nothing).

Do you know if it's possible to change this option to increase the brightness when the unit have no external power?

Thanks in advance