Yep, look at those blue tick marks at the bottom of the graph. That shows the periods of time that the phone was active in some way (screen on, wifi on, network use, etc). From the graph, it seems like that was pretty much never.

By contrast, here's what my phones same battery readout looks like:

[0] http://i.imgur.com/4IC70y4.png

[1] http://i.imgur.com/kW9t1du.png

EDIT: Something to note about my battery life: I've used my phone a lot today, as can be seen from the photos, and I'm only down to %84 battery since charging it last night. The reason for that is because I bought an after market battery for my phone that increases it's capacity nearly x3. I find the added size not just manageable, but preferable. The extra weight and size in my hand makes the phone more hefty, which is exactly what I like.

All you need to know is he used the browser for 8 minutes and gmail for 9 minutes over 3 1/2 days.

Hmm, that's weird. Mine has no tick marks, just a solid blue line. I did use it a lot today, but maybe some app was preventing it from sleeping completely?

Yep, these stats don't matter at all until he gives screen on time. Current (last 12 months) phones tend to manage about 6 hours of screen-on time, and the LG G2 in particular appears to be getting some fantastic numbers.