myCharge All Terrain Charger
This is the most durable (and waterproof) portable battery we’ve seen.
Brand: myCharge
Model: All Terrain Charger
Durability
This palm-size device-charger is as adventure-ready as you are. A rubberized exterior absorbs shock and improves grip. It’s rated at IP68, which means it’s fully dust- and waterproof. It’s also drop-proof to 2 meters, but, in one case (oops!), it careened 50 feet down a talus field and wasn’t damaged.
Power
3,000 mAh equals about 1.5 iPhone 6 charges.