20,000 mAh power bank
Best fit when you use navigation, photos and transport apps heavily or expect long stretches away from sockets. This is the INIU model currently linked by After Camino.
See on Amazon.es (paid link)Why a power bank matters more after Santiago too
The phone often works harder after the Camino: hotel confirmations, train or bus tickets, airport transfers, maps and Finisterre/Muxía planning all happen at once. If you are continuing to the coast, the extra reserve can become more useful than it was during a simple accommodation-to-accommodation stage.
Do not carry two solutions to the same problem
If your phone battery is strong and you charge every night, a large power bank may be dead weight. If you already own a reliable compact battery, use it instead of buying another one because a packing list says so.
Related guides
Use the Camino travel essentials guide, the Finisterre/Muxía guide or the leaving Santiago guide depending on what happens after your final stage.
FAQ
Is 10,000 mAh enough for the Camino de Santiago?
For many pilgrims it is the better weight-to-backup compromise, especially when accommodation charging is reliable. Heavy phone use or long days away from sockets may justify more capacity.
Is a 20,000 mAh power bank too heavy for the Camino?
It can be unnecessary weight for some pilgrims and useful margin for others. Compare the live product weight with how often you expect to recharge before deciding.
What matters most in a Camino power bank?
Useful capacity, actual weight, a charging setup that matches your phone, and a size you will genuinely carry every day matter more than buying the largest number available.
Can I take a power bank on a flight?
Airline and aviation rules apply to lithium batteries. Check your airline's current requirements before flying rather than relying on a packing guide.