Best price on Google is $21
Amazon is offering the Charmast High Speed Charging USB C Cell Phone Portable Charger External Backup Power Battery Packs, Compatible with iPhone, Samsung, Huawei, More (10400mAh) for the best deal. Comes with 3 outputs (2 USB-A, 1 USB-C).
10400mAh Capacity - The usb c battery pack could charge cellphones like iPhone X for 2.5 times, a Galaxy S9 2.3 times, or an iPad mini 4 1.2 times; fully recharge in just 4.5-6 hours with a 2A or 3A charger.
Regular Price is $21.59
1. Amazon Price is $21.59
2. Use coupon promo code FM6P8AF7 to get 50% off
3. Free shipping with $25 purchase or with Prime
Final Price is $13.19