---
product_id: 46813009
title: "50000mAh Laptop Power Bank 5/9/12/16/19/20V Portable Laptop Battery Charger with QC3.0 USB-A Port & 12V Type-C Port for Laptop, Tablet, Smartphone and More Devices"
brand: "krisdonia"
price: "$277.56"
currency: USD
in_stock: true
category: "Krisdonia"
url: https://www.desertcart.us/products/46813009-50000mah-laptop-power-bank-5-9-12-16-19-20v
store_origin: US
region: United States of America
---

# QC3.0 fast charging USB ports 50000mAh ultra-high capacity Adjustable 5-20V DC output 50000mAh Laptop Power Bank 5/9/12/16/19/20V Portable Laptop Battery Charger with QC3.0 USB-A Port & 12V Type-C Port for Laptop, Tablet, Smartphone and More Devices

**Brand:** krisdonia
**Price:** $277.56
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your hustle anywhere, anytime—because running out is not an option!

## Quick Answers

- **What is this?** 50000mAh Laptop Power Bank 5/9/12/16/19/20V Portable Laptop Battery Charger with QC3.0 USB-A Port & 12V Type-C Port for Laptop, Tablet, Smartphone and More Devices by krisdonia
- **How much does it cost?** $277.56 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/46813009-50000mah-laptop-power-bank-5-9-12-16-19-20v)

## Best For

- krisdonia enthusiasts

## Why This Product

- Trusted krisdonia brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rugged & Reliable:** UL-certified Li-Polymer battery with 6 safety protections and 1000+ recharge cycles—trusted backup for your on-the-go lifestyle.
- • **Pass-Through Power:** Simultaneously charge the power bank and your devices—stay powered up without downtime.
- • **Custom Voltage Control:** Adjustable DC output from 5V to 20V with easy voltage setting—charge laptops directly without bulky chargers.
- • **Power Through Your Day:** Massive 50000mAh capacity powers laptops 2.5x & smartphones up to 18x—never run out during critical moments.
- • **Fast & Flexible Charging:** Dual QC3.0 USB-A ports plus a 12V Type-C port deliver rapid, versatile charging for all your devices.

## Overview

The Krisdonia 50000mAh Laptop Power Bank is a portable powerhouse designed for professionals on the move. Featuring adjustable DC output (5-20V), dual QC3.0 USB-A ports, and a 12V Type-C port, it supports fast charging for laptops, tablets, and smartphones. Its pass-through charging lets you power devices while recharging itself. Built with UL-certified Li-Polymer cells and multiple safety protections, it offers reliable, long-lasting performance with over 1000 recharge cycles. Compact and lightweight, it fits easily in your bag, ensuring you stay connected during critical moments.

## Description

desertcart.com: Krisdonia 50000mAh Laptop Power Bank 5/9/12/16/19/20V Portable Laptop Battery Charger with QC3.0 USB-A Port & 12V Type-C Port for Laptop, Tablet, Smartphone and More Devices : Electronics

## Features

- Pass Through: Support charging and discharging at the same time. The function is activated by pressing the button for 2 seconds while the power bank is charging.
- Emergency Battery Backup for Outdoors: Size 19.5 x 15 x 2.8cm and weight 1.2kg. 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.
- Adjustable DC Output 5V-20V: The DC OUT port supports 5V/8.4V/9V/12V - 3A (max); 16V(compatible 16.5V) / 20V(compatible 19V, 19.5V for laptops) - 4.7A (max). Krisdonia 50,000 can directly charge your laptop without needing your laptop charger. Please double click the power button to set the voltage before charging from the DC OUT port.
- QC3.0 USB/TYPE-C 12V Output: 2x QC3.0 USB-A ports for smartphones, tablets and other USB devices. 1x TYPE-C port for iPad, not for 20V TYPE-C laptop. ( Please charge your 20V TYPE-C laptop from the DC OUT port with the TYPE-C converter. )
- High Capacity: The 50000mAh(3.7V)/185Wh external battery provides enough juice to power a 65W laptop for 2.5 times and smartphone for 11-18 times. DC-IN 19V/2A enables the power bank to be recharged in 6 hours.
- 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 warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074N1B15F |
| Amperage | 3 Amps |
| Antenna Location | Gaming Console |
| Battery Capacity | 50000 Milliamp Hours |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 7 Hours |
| Battery Weight | 850 Grams |
| Best Sellers Rank | #41,684 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #930 in Cell Phone Portable Power Banks |
| Brand | Krisdonia |
| Color | black |
| Compatible Devices | Laptop, Router, Smartphone, Tablet |
| Compatible Phone Models | All |
| Connector Type | USB Type A, USB Type C |
| Customer Reviews | 4.2 out of 5 stars 890 Reviews |
| Item Dimensions | 7.68 x 5.91 x 1.1 inches |
| Item Dimensions L x W x Thickness | 7.68"L x 5.91"W x 1.1"Th |
| Item Weight | 1155 Grams |
| Manufacturer | Shenzhen Nejifu Technology Co.,Ltd |
| Mfr Part Number | NJF-5X |
| Model Number | NJF-5X |
| Number of Batteries | 1 Lithium Polymer batteries required. (included) |
| Number of Ports | 4 |
| Other Special Features of the Product | Portable, Wireless Charging |
| Reusability | Rechargeable |
| Special Feature | Portable, Wireless Charging |
| UPC | 613852009215 |
| Unit Count | 1 Count |
| Voltage | 12 Volts |
| Warranty Type | Limited |

## Product Details

- **Battery Capacity:** 50000 Milliamp Hours
- **Brand:** Krisdonia
- **Color:** black
- **Connector Type:** USB Type A, USB Type C
- **Special Feature:** Portable, Wireless Charging

## Images

![50000mAh Laptop Power Bank 5/9/12/16/19/20V Portable Laptop Battery Charger with QC3.0 USB-A Port & 12V Type-C Port for Laptop, Tablet, Smartphone and More Devices - Image 1](https://m.media-amazon.com/images/I/616Gq24eDgL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: The description says "update" supports pass through charging. i cannot, however get anything to charge while the power bank, itself, is charging?**
A: Yes it does, but there's a trick:  You must first plug the cable to charge the battery pack, and second, press the power button until the display says 5V.  This enables pass-through mode.  Of course you can double-press the power button if you need to adjust the DC output if needed.   Just remember that when you plug in the charging cable for the battery pack, it will immediately shut off the output until you turn it on again.

**Q: how does manufacturer come up 50000 mah ? what cell using ?**
A: I believe that is at 3.7V, so 50,000mAh * 3.7V = 185 Wh.

**Q: Does it/ can it be used to change a Surface pro 4**
A: Yes. It can charge Surface pro 4 which is 12v. 
DC output: 5V/8.4V/9V/12V 3A (max)    16V(16.5V)/20V(19V, 19.5V) 4.7A (max) 
But we don't include this adapter. You need to buy an adapter or a cable by youself.
Thank you. Have a nice day!

**Q: Pretty sure this cannot be checked in a aircraft baggage. Kindly clarify if this is allowed as a hand luggage on an airplane provided its power?**
A: Dear customer, this power bank is 185Wh and you cannot take it on plane, even a hand luggage. You can buy Krisdonia 25000mAh which can be taken on plane.
Thank you. Have a good one.

## Frequently Bought Together

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-05*