Amazon offers the pocket-sized Kmashi Victor K1 5000mAh USB Power Bank for low $7.69 after coupon code "SDQBZU8J" (Exp soon). FREE shipping for Prime members or on orders of $35+.

What makes this deal hot:
You save $19.30 off the price! That's the lowest price we could find. This has a 4.9 out of 5 star rating but ONLY 23 reviews currently.

What this does & Why you need it:
Ultra-compact design
5000mAh Battery (almost two full charges for an iPhone)
5V/2.1A output and 5V/2A input
1-year warranty