Was looking for a power bank for Nintendo Switch came across this. It's down from 39.99 to 20.99.
20000mAh Capacity and Compact Size Portable Power Bank
Taurus X4 power pack charger is smaller than iPhone 6 Plus, and charge iPhone 6 almost 8 times, iPad Air almost 1.7 times, Galaxy S6 almost 5.7 times, For New Macbook, please buy another USB to Type-c Cable, X4 can charge New Macbook almost 1.2 times. With such massive capacity, in such a compact package, perfect for flights, road trips or Pokemon Go, Nintendo Switch, Super Mario Run games, just any time you're away from an outlet.
Unique smart digital display technology, shows exactly remaining power in digital format, and it's hidden until activated.
The readout comes on when you press the button on the side.
The power bank on and off automatically when it's connected and disconnected.
It detects your device intelligently and fast charges your device at the fastest speed.
Built-in LED Torch
Relatively bright, particularly useful when travelling and save you taking a separate torch. Long press the power button, flash is on/off.
Compatible with almost all smart devices with an input of DC 5V.
Like Kindle, Bluetooth Speaker/Headphones, Mp3 Players and iPhone7/7 plus 6/6S/6/6S/5/5S/SE/5C/4/4S/iPad 2/4 mini/2/3/4 iPad air/air 2 Pro, OnePlus 3/3T, Huawei P9/P10 lite, Google Nexus 5/5X 6/6P/7/9/10/Pixel XL Samsung Galaxy S8/ S7/ S7 Edge S6/ S6 Edge S 5/4 Tab 3/4, HTC 8 9 10 One A9/M9 M8/E8 XperiaTM Z5/Z5/Z3, LG G3 G4 G5 V10/Flex 2/Flex/Pro Lite/LG G Pad II 7.0/ 8.0/8.3/10.1 FTM/XTM, XperiaTM Z3 Z3+ Z5 Z5 C4 M4 Aqua E5, Nintendo Switch, Pokemon Go, Lumia 435 635 550 640XL 650 Dual SIM 735 830 950XL Dual SIM 1520 NOOKA E NOOK / S / S2, verykool s5017 Dorado SOL JR s5002 Maverick s5518 Fusion II SL4502 Jet SL5009...etc
Multiple Smart Protection System
Built-in high quality A-Class lithium ion batteries, make the phone battery safe and reliability to use.
Safe guards: keeps your devices safe from over-charging, over-voltage, over-current, and short circuit.
Taurus X4 External Pack Technical Details
Model:Taurus X4 Power Bank
Battery Type: Li-ion Battery
Input: Micro USB 5V/2.1A(MAX)
Output: USB1 5V/2.1A; USB2 5V/1A