Woot has Samsung 10,000 mAh Micro-USB Battery Pack (Your Choice Color). Shipping is free for Prime members.
https://electronics.woo
- 10,000 mAh capacity provides up to 2 full charges from 0 to 100% on most of the latest smartphones
- Fast charge Galaxy S9, Note9 and more at up to 15W power output
- 10,000 mAh Portable Battery with Micro USB Cable
- Dual port charging capability, Samsung Portable Battery can power 2 devices simultaneously for added convenience and far less hassle.
- Dimensions: 0.8" x 3.9" x 5.9", .25 lbs