3300mah battery is just enough not outstanding u should activate medium power saving mode to extend the battery life which will limit cpu perfomance,turn off aod,decrease brightness and even coustomise it to go further u should limit the display resolution to lowest hd+ and change the display mode to basic rather than adaptive:) if u need upto the border then activate the maximum powersaving mode which limit no of apps,turn off biometrics and much more also not coustomisable.
if you wantes to use a phone in half of its power and half resolution you could have bought a 10K phone. people buying a note8 bought it to enjoy its features. and the battery backup is not good enough.
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