After Lake Tahoe snowboard trip with very heavy use of GPS

just confirmed this is truly the monster I've been looking for!

I got ready for my weekend snowboard trip at Lake Tahoe from San Francisco.

Friday
Unplug my phone at 5pm
At 7pm drive up to Tahoe City for 4 and a half hours with medium brightness and GPS on the whole time. (made a quick pitstop at walmart )
Reached Tahoe City at 11:45. Phone is at 70%
Didn't not charge at all overnight

Saturday
Went to snowboarding with GPS on again to Alpine Meadows which is 20 mins away
Went snowboarding all day while listening to music. Reception on top of mountain is a bit weak so may have worked the battery a bit. took lunch break and whatsapp some friends.
Turned on my wifi and start browing internet for a bit in hotel. Forgot to turn it off in between
Did not charge overnight

Sunday
Went to snowboarding with GPS on heading towards Squaw Valley
took a longer break this time and start browsing anandtech and theverge.com for around 30 mins
Headed back to San Francisco which takes another 4 and a half hour with medium brightness and gps on. (made a quick stop for dinner in between)
Did not charge at all overnight


Monday
Return my rental car and used GPS again at medium brightness.