AnkerDirect through Amazon has their Anker PowerCore II 20000 Portable Charger, model no. AK-A1273011, for $33.99 (43.99 – 10 coupon) with Free Shipping for a limited time. To get the discount, use the coupon code: LIPO3399 at checkout.

The Anker PowerCore II features 3 USB output ports that allow simultaneous high-speed charging, 20000mAh is enough to power to charge the iPhone 7 almost 7 times, and Dual Micro USB (20W) input offers recharge speeds up to twice as fast as standard portable chargers.