My phone battery always drains faster during our park days. I am constantly using it for photos, fastpass, checking the time and keeping in touch with other people in our group. I have learned to keep a mini recharger but sometimes I use that up too! Luckily with the recent updates to the park they added 2 areas for relaxing and recharging your electronics. The first spot is in New Fantasy land near the train station and Pete’s silly side show. 
They allow both standard American plugs and USB cables so you can charge phone batteries, cameras, tables etc.
The other space is located with in the Rapunzel themed bathroom area next to Peter Pan and It’s a small world. This is the best themed bathroom at Disney and is almost an attraction in it self.
Over in the seating area there are several charging plugs hidden in what looks like tree stumps.
