We just got back and with all the picture taking and checking
MDE, our batteries got depleted fairly quickly. We bought one Fuel Rod at Disney Springs and shared it for our two phones and it was totally worth the $30. I would charge my phone then trade it in for a fresh fuel rod and DH would charge his. I actually have portable chargers, but I would often forget to charge them overnight and once you're at the park there's nothing you can do to charge them. I highly recommend the fuel rod. My one caveat, we ended up having to use our own cord because the one that came with it didn't fit snugly and kept getting disconnected.