Aukey via Amazon offers the Aukey 20,000mAh External Battery Pack Power Bank
in Black or White, model no. PB-N15, for $35. Coupon code "Y7EAWNP2" cuts it to $26.99
. With free shipping
, that's $17 below list and tied with last month's mention as the lowest total price we've seen. It features four LED indicators, 2.1-amp input, 3.1-amp output, built-in flashlight, and is compatible with most USB devices.