Today’s lesson...

[MrBurnside]

Two bars of battery at the bottom of the scale IS NOT EQUAL to two bars at the top of the scale.

hard lesson to learn 1,500 ft from the summit.

 

[Rosemount]

Been there .
Done that ...

 

[dykov]

Yep! That is the thing. I started to consider last 2 bars as last bar. And this is the time to start thinking about ECO mode till top of the peak just supporting with Trail on walls.
That is also the reason I bought an extra battery