Looking for a laptop for a friend that is small (hence up to 13") compact and has very good battery life for mobile use.

Budget around $500-$700. 

Ultrabook style.

USB-C charging if possible at this price point.

Purely to be used for browsing and document editing and I suppose also watching youtube and netflix etc from time to time. 

I'd be ok to pay for a new battery if you have an older laptop that ticks all the boxes but the battery is dead or no longer performing.

Edit: SSD would be nice, but i could probably upgrade if HDD.