I went to Myrtle Beach the day after I got my note 5, battery life was fine, while at the beach and pool (approximately 7hrs total) battery never got below 40% and that's with me taken lots of pics and they automatically sync to my Google photos, phone got warm a couple times but nothing major.
Posted from my Beast Galaxy Note 5
DEVICE HISTORY (since they got smart)
PHONES: Galaxy Nexus, LG viper, Galaxy s3, HTC Evo 4g, Galaxy Note 2, Galaxy s5, LG G-Flex, Galaxy Mega 6.3, Galaxy s6 edge, Galaxy Note 5. TABLETS: Galaxy Note 10.1 gt-n8013, Galaxy tab 3 7.0. WATCH: Galaxy gear