Jackery Giant+ 12000mAh USB Power Pack

You can go here to find the 12000 mAh Power Pack: https://amzn.to/3iWq4hZ

The Jackery Giant+ 12000mAh USB Power Pack is a great solution for backup power.  I use it out backpacking as well as traveling to make sure I have power for my GoPro batteries, in addition to keeping my iPhone charged.  Great for unexpected emergencies as well...  ...say when your power gets knocked out due to a storm.