Amazon offers the Kmashi MP816 10,000mAh Dual USB Power Bank for low $9.29 after coupon code "ME6ADK4L" (Exp soon). FREE shipping for Prime members or on orders of $35+.

What makes this deal hot:
You save $40.70 off the price! That's the lowest price we could find currently and its the lowest price we've seen for any brand 10,000mAh USB Power Bank. This has a 4.2 out of 5 star rating with near  2,750 reviews.

What this does & Why you need it:
Detects your device to deliver its fastest possible charge speed up to 5A
10000mAh capacity
Dual USB ports (charge two devices at full speed simultaneously)