Romoss USA via Amazon offers its Romoss Sense 6 LED 20,000mAh Dual-USB Portable Battery Pack
in White, model no. PH80-280-02, for $22.99. Coupon code "ROMSENSE" cuts it to $18.39
. Plus, Prime members bag free shipping
. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $5.99.) That's $37 off list and the lowest total price we could find. It features two smart-charging USB ports, an implicit LED indicator that displays battery percentage, and grippy polka dot surface.
Of note, it's available in Blue or Pink
for $19.99 with free shipping for Prime members after the above coupon. All deals end March 31.