How many batteries for GPS

[Knot Tellin]

I have a Garmin 62st and I going on a 8 day pack in hunt. How many extra sets of batteries should I take. I am using energizer lithium batteries.

 

[gman82001]

Buy lithium and take one extra set is what I would do

 

[mtmander]

I think 1 set will be enough , but they don't weigh much and you use them so I would bring 2 sets.

 

[Muleyfanatic]

I would take 2 sets. I shut mine off when not using it to conserve them also.

 

[Knot Tellin]

I want to say I went through a set every 1.5 days before when I used it. But couldn't remember. Thanks for the advise.