Unifun: Charge your devices on the trail with the $13.50 Unifun waterproof power bank

The Unifun waterproof power bank a rugged and affordable charging solution for your devices when you're on the trail. Normally $17 on Amazon, you can score this portable battery for just $13.50 with a limited-time coupon code.The post Charge your devices on the trail with the $13.50 Unifun waterproof power bank appeared first on Digital Trends.