Here is a portable power bank that can charge your laptop, tablet, and smartphone. Omnicharge comes with a 24,000 mAh battery and can charge smartphones up to 9 times and tablets up to 8 times. It also powers laptops up to 13 hours. You get a 10-layer power protection system and an OLED display that shows charging status, power info, and time remaining.
The power bank has a compact design and comes with fast charging USB ports and adjustable DC output.