• MAXOAK K2 50000mAh Power Bank
  • MAXOAK K2 50000mAh Power Bank
  • MAXOAK K2 50000mAh Power Bank
  • MAXOAK K2 50000mAh Power Bank
  • MAXOAK K2 50000mAh Power Bank
  • MAXOAK K2 50000mAh Power Bank
    • MAXOAK K2 50000mAh Power Bank
    • MAXOAK K2 50000mAh Power Bank
    • MAXOAK K2 50000mAh Power Bank
    • MAXOAK K2 50000mAh Power Bank
    • MAXOAK K2 50000mAh Power Bank
    • MAXOAK K2 50000mAh Power Bank

    MAXOAK K2 50000mAh Power Bank

    Regular price $129.99
    Sale price $129.99
    Regular price
  • Highlights:
    • 【Superior Quality&Safety Guaranteed】: Conform to UL1642 and UL2056 Standards. Constructed with Lithium-ion Polymer Battery Cells&Built-in 6 Security Protections to Ensure Safety Use and 1000+ Long Recharge Cycles. We Offer Customers a 12 Months Hassle-free 100% Satisfaction & Replacement Warranty.
    • 【Long-lasting DC Power Bank for Laptops】:Ultra High Capacity 50000mAh(3.7V)/185Wh(130W Max.).Compatible With a Wide Variety of Laptops(Max.130W)- Dell HP Lenovo Surface pro 2/3/4(DC12V) Sony Samsung Acer Toshiba IBM NEC.We Include 14 DC Connector for Various Laptops. Once Fully Charged, K2 Portable Battery Pack Can Charge Laptops(65W) About 2.5 Times and Smartphone About 11-18Times without Using your Laptops/Phones While Charging,It is Much Power Saving than AC Outlet Power Bank.
    • 【DC20V/DC12V/USB5V Outputs】:All-IN-1 FAST CHARGE Battery Pack.It Features with 1*DC20V/5A for Laptops(18.5V~20.5V), 1*DC12V/2.5A for Cameras,Routers,LED lights, 2*USB 5V/2.1A and 2*USB 5V/1A For Smart Phones, iPad, Tablet &Other USB-Charged Devices. You Can Charge Several Devices Simultaneously to Save You Much Time. Ultra Energy Saving & Fast Charging Speed with DC input:16.8V/2.5A, OUR K2 Battery Pack Can Be Recharged in Just 6-8 Hours.
    • 【Emergency Battery Backup for Outdoors】. Size 8.1" x 5.3" x 1.3" And Weight 2.77lb.You Can Easily Put This Portable Charger in Your Briefcase ,Backpack Or the Carrying Bag. Keep your laptops, Phones, Fans,LED Lights, Nintendo Switch, Speakers, Cameras Powered During Road Trip, Hunting,Camping, Fishing,etc.
    • 【What You Can Get】: 1 x Laptop power bank(K2),1 x AC Adapter, 1 x DC cable, 14 x DC connector for Laptops, 1 x Multifunction bag, 1 x Manual.
    • Tips: Can't charge Lenovo Yoga 3 14, yoga 900(20V 3.21A), yoga 3 11 13 mix 4 700s(20v 2a), dell XPS 12(Type C) and other type-C laptop. Can't charge Apple Laptop.
  • Show More

    We found there are many power bank designed for smartphones, but no specific power bank for Laptops, so we develop this MAXOAK Laptop Power Bank (Model K2) which include 14 kinds of DC connector for almost 95% Laptops (Max.130W), ultra-high capacity 185Wh (50000mAh) can usually charge your laptop about 2 times+ (8Hrs+). If you are looking for a long-lasting laptop power bank, this power bank is your best choice.


    It features one DC20V5A (max.130W), one DC12V2.5A, and Four 5V USB outputs that provide off-grid power backup for emergency power failure while engaged in outdoor working and outdoor exploring life. We work and play on our laptops, take laptops on camping trips, or travel.

    We take quality and safety as the most important things. We built-in high-quality lithium-ion polymer battery cell certificated with UL1642/UL2056/CE/FCC/ROHS /UN38.3/MSDS/PSE. We have a strict material inspection and production supervision and testing process, ensuring the highest quality, safety, reliability, and performance.

    Compared with an AC outlet power bank with the same capacity, it has a higher discharge rate and has a much longer charge time for the same device. Besides, it has a much better heat dissipation. Moreover, it has a much longer life cycle time that can reach up to 1000+.

    Its flat and slim design makes it easy to put in a briefcase and backpack. Its Weight:2.77lb and size: 8.1"in x 5.3"in x 1.3"in. It is built-in 8pcs 6250mAh lithium-ion polymer battery cells, size as a book. It is real 50000mAh, so it is impossible to be the very lightweight and small size as a lower capacity power bank, please check the size and weight carefully ahead.

    It includes 14 kinds of DC connectors for almost 95% of Laptops (Max.130W), the brand/model covers Dell HP Lenovo Surface pro Sony Samsung Acer Toshiba. Tips: Can't charge Lenovo Yoga 3 14, yoga 900(20V 3.21A), yoga 3 11 13 mix 4 700s(20v 2a), dell XPS 12(Type C) and other type-C laptop. Can't charge Apple Laptop.

    We include all the accessories needed, including Laptop power bank(K2) x 1, Home charger x 1, DC cable x 1, Laptop charge connector x 14, Multifunction bag x 1, Manual x 1, message card x 1.

    • What is the capacity of the K2?
      50000mAh(3.7V)/185Wh. We built in 8pcs 6250mAh lithium-ion Polymer battery cell.
    • What laptops can be charged by K2?
      First, the power of your laptop should not exceed 130W (you can check the power on the label that pasted on your laptop adapter). We included 14 pcs dc connector for different laptops including Dell HP Lenovo Surface pro Sony Samsung Acer Toshiba iPad.It can charge laptops (max.130W) almost 90% laptops in the market. You can email us to check whether it is compatible with your laptop. Second, check the adapter connector size and check whether we have the proper dc connector for your laptop.
    • How Can i Know Whether My Laptop Will Cause Power Bank Overcurrent or not?
      Please Check the label pasted on the adapter. If it is more than 130W (DC output current is more than 7A), it may cause our power bank turn off during charging for overcurrent. So we do not suggest to use our power bank to charge your laptop.
    • Can I charge Apple laptops including Macbook/MacBook Air/MacBook Pro?
      Can not, pls use our another model (K3) which is especially designed for Apple laptops.
    • Can it charge surface pro 3 /4?
      It can charge surface pro 3 (dc 12v) and surface pro 4 (dc 12v). You need to buy a dc to surface cable yourself. But, it can not charge surface pro (dc 15v).
    • Can it charge usb-c device?
      Can not.
    • Can it support charge and discharge at the same time?
      Yes
    • How long can it charge a laptop?
      It depends on the power of your laptop and how you use the battery during charging.For example: if your dell laptop (45W). the working time is about : 185*0.85/45=3-3.5times. Working time= 185wh*0.85/the power of your device.
    • Why it shut down during charging my device?
      Check whether the power of your device exceed the max.130w or lower than the shutdown current. Low shutdown current for 12V port: 150mA, High shutdown current for 20V port: >7A, Low shutdown current for 20V port: 200mA, Low shutdown current for 5V port: 70mA
    • What is included in the package?
      Package include: Laptop power bank(K2) x 1, Home charger x 1, DC cable x 1, Laptop charge connector x 14, Multifunction bag x 1, Manual x 1, Message card x 1

    Customer Reviews

    Based on 9 reviews
    89%
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    V
    Vanessa Leland

    MAXOAK K2 50000mAh Power Bank

    R
    Randall Christian
    Great for Busking

    Powers my PJB Double Four 70W Bass Amp all night long. Adapters didn't fit amp, but it plugs into amp without needing one.

    T
    Thomas
    DC Jack size

    I love the product but I recently got a new computer which uses usb-c. On amazon i found some different size dc to usb-c cables that go into the DC output. I need to know what size the output port is so i can buy the correct cable size... is it 2.5mm?

    J
    Jeffxipergt
    Huge power bank capacity

    Huge power bank capacity! Lots of output options, it can charge many different devices; phones, tablets, laptops and more.
    Power bank feels solid and well made. It does require special power adapter (included) that charges the powerbank.

    v
    valentinont
    Good product

    very good in both capacity and fast charging