For those who don't need quick charge, this seems like a decent deal.
It's $13.99 but there's a $3 coupon to clip. "Save $3 on PBN73 10000mah power bank"
High-speed Recharging: Recharge your power bank faster than ever with a 5V/3A input
Multi-output: Dual USB-A Outputs and A USB-C Input/Output, it can charge your devices simultaneously
Powerful Charging On-the-go: Perfect portable charger for on-the-go
Refined Design: Slimline form makes it comfortable to hold. Minimalist LED indicator shows remaining battery level at a glance
Package Contents: AUKEY PB-N73 10000mAh USB-C Power Bank, Micro-USB Cable, User Manual, 24 Month Promise and Customer Support Card