RAVPower 15000mAh Portable Dual USB Solar Charger for $20 at Amazon (Reg. Price $37)

Amazon with spectrum-US has the RAVPower 15,000mAh IPX4 Splashproof Dustproof Portable Dual USB Solar Charger Power Bank Battery Pack with Flashlight (US-RP-PB-003) for $37 – $17 off with code 6INXSD26 [Exp 4/2] = $20 with FREE shipping on $25+ or with Prime.