Krisdonia 50000mAh Power Pack Portable Charger - External Battery with 4 Ports Type-C + DC Port + Dual USB (QUICK CHARGE 3.0) for Laptop, Smartphone, Macbook & Tablet by Amazon.co.uk

• Emergency Battery Backup for Outdoors: Size 7.6'' x 5.9'' x 1.1'' and weight 2.55lb. You can easily put it in your briefcase, backpack or carrying bag when you're on the go. It keeps your devices powered for emergency.

• High Capacity: Built in high quality 50000mAh Lithuim Polyer battery, it provides enough juice to power a 65W laptop about 2.5 times and smartphone about 11-18 times. Enough power to keep you going for days.

• Fast Charge & Recharge: Builds in 4 output ports. 1x DC OUT for Laptops: 5V/8.4V/9V/12V - 3A (max); 16V(16.5V) / 20V(19V, 19.5V) - 4.7A (max). Two QC 3.0 USB Ports for Smartphones. 1x Type-C (5V/9V/12V - 3A) for MacBook 12", Nintendo Switch and more. DC IN 19V/2A enables the power bank to be recharged in just 6-8 hours. Note: The TYPE-C port doesn't support 20V. If your laptop is 20V USB-C, please purchase a Krisdonia TYPE-C converter ( ASIN: B07XJ11P8S ). See Warm Tips below.

• Pass Through: Builds in PASS THROUGH function, which means that it could power other devices while the power bank itself is charging. The function is activated by pressing the button for 2 seconds while the power bank is charging its power.

• Superior Quality & Safety Guaranteed: Conform to UL1642 and UL2056 Standards. Constructed with Li-Polymer battery cells and built in 6 security protection to ensure safety use and 1000+ recharge cycles. We provide our customers 12 month 100% satisfaction & replacement warranty.