Griffin Technology GC42248 - Travel Battery Pack for Apple Watches 38MM & 42MM In Aluminum

Ultra-portable recharging for Apple Watch whenever you need it. Leave your Apple Watch Magnetic Charging Cable safe at home when you travel with Griffin's Travel Power Bank for Apple Watch. The compact battery and integrated charging surface deliver ultra-portable power wherever and whenever you need it. The built-in rechargeable battery delivers up to 2.5 full charges for your Apple Watch before it needs recharging through the included micro-USB cable. With a compact footprint (approximately the size of a small stack of business cards) the Travel Power Bank slips easily into a bag backpack or briefcase. A keyring is attached so you can clip it to a hook or carabiner or attach it to your keys.