As one of its daily deals, newegg offers the RAVPower Dynamo-On-the-Go 7,800mAh External Battery Pack
, model no. RP-PB09, for $21.99
with free shipping
. That's $5 under our August mention and tied as the lowest total price we've seen. (It's a current price low by $8.) It features a power level indicator, dual USB ports, a wall charger, and carrying bag. Deal ends today.