Snap Pack is our latest dual-MagSafe® Qi2 battery bank that delivers fast 15W charging speeds. What's dual-MagSafe®? It's a fancy marketing term we conjured to describe how you can magnetically snap it to your phone and still stack other MagSafe accessories on top. Snap Pack has a 5000 mAh capacity and is constructed from premium space-grade aluminum in a minimalist unibody design.