XTAR PB2 Rapid Smart Phone Power Bank & Hidden LCD Display 18650 Battery Charger 2Slots USB Cable
It’s now in direct promo for $10.90 ($16.39) with free gift (26650 battery case worth $1.45).
Offer expires on November 2nd.
This is a very compact li-ion charger/powerbank with two 18650 slots, magnetic cover and battery charge state display (description states LCD but looks more like standard blue 7-segment LED display).
Claimed conversion efficiency of up to 92%.