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MAXOAK 50000mAh 6 Port(5/12/20v) Portable Charger External Battery Power Bank for Laptop & Notebook–Most of Sony Dell Hp Toshiba Samsung Lenovo Acer IBM NEC Mobile,Tablet(not for Apple Laptop)

by MAXOAK

247 customer reviews

| 709 answered questions

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$135.99 & FREE Shipping. Details

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REAL ULTRA HIGH CAPACITY 50000mAh/185Wh: Compatible With Most Popular Laptops and Notebooks( Can not Charge Laptop with DC Current Over 5A).We Provide 11 Kinds of Connector for Most of the Popular Laptops (Pls Make Sure the Connector Fits for Your Laptop before purchasing.). Once Fully Charged, Our K2 Portable Battery Pack Can Charge Your iPhone 6 Plus about 11 Times, iPhone 6 About 17 Times, Galaxy S6 Almost 11 Times
All IN ONE FAST CHARGE: It Has 6 Output Ports. One 20V/3A for Laptops, one 12V/2.5A for Digital Cameras, Two 5V/2.1A and Two 5V/1A For Most of Smart Phones, iPad, Tablet and More 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
MINIMAL SIZE & LIGHTEST: High Ratio of Dimension and Capacity. This Battery Pack May Be the Smallest for 50000mAh Laptop Power Bank, Size Only 8.1" x 5.3" x 1.3" And Weight 2.77lb.When You're On The Go You Can Quickly Tuck This Power Bank in Your Briefcase ,Backpack Or the Carrying Bag
SAFETY,Durable & Guaranteed: Constructed with Lithium-ion Polymer Battery Cells&Built-in 6 Security Protections to Ensure Safety Use and 1000+ Recharge Cycles. Four Intelligent LED Indicators Show the Remaining Power Capacity.We Are Manufacturer and R&D Each Product Ourselves,Take the Newest Technology & the Best Qualified Raw Materials, So We Have Full Confidence to Provide Our Esteemed Customer a 24 Months Hassle-free 100% Satisfaction & Money Back Warranty.
WHAT YOU CAN GET: 1 x Laptop power bank(K2),1 x Home charger, 1 x DC cable, 11 x Laptop charge connector, 1 x Multifunction bag, 1 x Manual

MAXOAK 50000mAh 6 Port(5/12/20v) Portable Charger External Battery Power Bank for Laptop & Notebook–Most of Sony Dell Hp Toshiba Samsung Lenovo Acer IBM NEC Mobile,Tablet(not for Apple Laptop)

$135.99 & FREE Shipping. Details In Stock. Sold by Maxtar New Ener. and Fulfilled by Amazon. Gift-wrap available.

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Special Offers and Product Promotions

Save 5% on MAXOAK DC 5.5*2.1mm to 4.5*3.0MM Adapter Connector for HP laptop when you purchase 1 or more MAXOAK 50000mAh Power Bank (Model K2) offered by Maxtar New Ener.. Here's how (restrictions apply)
Save 15% each on MAXOAK 50000mAh Power Bank (Model K2) offered by Maxtar New Ener. when you purchase 2 or more. Enter code RVPPV48M at checkout. Here's how (restrictions apply)
Save 22% on MAXOAK 13,000mAh Power Bank(Model S16) when you purchase 1 or more MAXOAK 50000mAh Power Bank (Model K2) offered by Maxtar New Ener.. Here's how (restrictions apply)
Save 22% on MAXOAK 13,000mAh Power Bank(Model S16) when you purchase 1 or more MAXOAK 50000mAh Power Bank (Model K2) offered by Maxtar New Ener.. Here's how (restrictions apply)
Save 25% on MAXOAK 13,000mAh Power Bank(Model S16) when you purchase 1 or more MAXOAK 50000mAh Power Bank (Model K2) offered by Maxtar New Ener.. Here's how (restrictions apply)
Save 25% on MAXOAK LED Desk Lamp when you purchase 1 or more MAXOAK 50000mAh Power Bank (Model K2) offered by Maxtar New Ener.. Here's how (restrictions apply)
Save 10% on MAXOAK 5.5*2.1mm to 4.5*3.0mm Adapter for Dell Laptops XPS 13 L321X and more when you purchase 1 or more MAXOAK 5000mah Power Bank offered by Maxtar New Ener.. Enter code 8ECPPXET at checkout. Here's how (restrictions apply)
Save 10% on 5.5x2.1mm to 4.0*1.35mm Adapter for ASUS UX21A UX31A UX32A UX305FA when you purchase 1 or more MAXOAK 5000mah Power Bank offered by Maxtar New Ener.. Enter code VYNSUJKQ at checkout. Here's how (restrictions apply)
Save 5% on 16.8V 2.5A AC Adapter for MAXOAK K2 50000mAh Power Bank when you purchase 1 or more Qualifying items offered by Maxtar New Ener.. Enter code J7V7XNTP at checkout. Here's how (restrictions apply)

Product Description

Ideals Power Companion for Your Laptop

Stay Connected for Emergency
ever have Your laptop, cell phone, tablet run out of battery when you take along our MAXOAK long-lasting 50000mAh battery pack(K2).

Multi-use All in One Charge
We have total six outputs for different digital devices.
One 20V/3A, one 12V/2.5A, two 5V/2.1A and two 5V/1A output allow you charge several devices like laptop, tablet, cell phone simultaneously.

Ultra High Capacity 50000mAh
Once Fully Charged, Our MAXOAK K2 Portable Battery Pack Can Charge Your iPhone 6 Plus about 11 Times, iPhone 6 About 17 Times, Galaxy S6 Almost 11 Times.

The widest compatible Laptop Power Bank
11 kinds of connectors are supplied to assure a maximum compatibility with a wide range of popular laptops notebooks.
Please verify your laptop connector/Adapter Before Purchasing:
Laptop connector/Adapter included in the Package(DC 5.5*2.1mm to below adapter):
A:6.0/1.4(6.5*4.4mm)FUJITSU/SONY
C:5.5/2.5mm ACER/ASUS/IBM/DELL/HP/COMPAQ/FUJITSU/TOSHIBA/NEC
E:5.5/1.7mm Acer
F:4.8/1.7mm HP
H:5.0/1.0mm Samsung
I:7.4/0.6mm(or 7.4/5.0mm) DELL/HP
Fordell: 7.4/0.6mm(or 7.4/5.0mm) DELL
K:7.9/0.9mm(or 7.9/5.5mm) IBM/LENOVO
L:3.0/1.1mm Samsung
O:4.5/3.0mm only for HP, not fit for Dell Laptop.
Lenovo: fits for LENOVO laptop with square head with a thread in the middle
(not suitable for Lenovo laptop with half solid and half hollow)

please check the adapter size of your laptop and whether it is included as above.
Tips:
Low shutdown current for 5V port:70mA
Low shutdown current for 12V port:150mA
Low shutdown current for 20V port:200mA
High shutdown current for 20V port:>4.5A

If your laptop turn off automatically for several seconds or minutes, it may caused by overcurrent/lowcurrent protection.
if automatic turn off is caused by overcurrent protection,Please close the screen of your laptop, and then use our power bank to charge the 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 90W (DC output current is more than 4.5A). 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.


Weight and Dimension: Weight:2.77lb (1.26kg) Dimension: 8.1"in x 5.3"in x 1.3"in (LxWxH) 20.6cm x 13.5cm x 3.3 cm (LxWxH)	Tips/Attention: Can charge Surface Pro 3(but need buy the cable yourself-DC5.52.1mm to surface pro connector) Can* charge surface pro 4 ( if the DC output voltage is 12V) Cann't charge Surface Pro 4(only if DC voltage is 15V) Cann’t charge Lenovo Yoga 3 14, yoga 900(20V 3.21A), yoga 3 11 13 milx 4 700s(20v 2a) Cann’t charge dell xps 12(Type C) Cann't charge Apple Laptop Cann't take on airplane (185Wh)	Package Included: Laptop power bank(K2) x 1 Home charger x 1 DC cable x 1 Laptop charge connector x 11 Multifunction bag x 1 Manual x 1

Product Information

Technical Details

Collapse all

Other Technical Details

Brand Name

MAXOAK

Item model number

K2-50000mAh

Item Weight

1.8 pounds

Product Dimensions

8.2 x 5.3 x 1.3 inches

Item Dimensions L x W x H

8.15 x 5.35 x 1.3 inches

Batteries

1 Lithium ion batteries required.

Technical Specification

Certificate Of Analysis [pdf ]

User Manual [pdf ]

Certificate Of Compliance [pdf ]

Additional Information

ASIN

B00YP823NA

Customer Reviews

247 customer reviews

4.5 out of 5 stars

Best Sellers Rank

#641 in Computers & Accessories (See top 100)
#144 in Computers & Accessories > Laptop Accessories > Chargers & Adapters

Shipping Weight

4.1 pounds (View shipping rates and policies)

Date First Available

June 2, 2015

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.

Product Warranty: For warranty information about this product, please click here

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Customer Reviews

247

4.5 out of 5 stars

5 star		75%
4 star		15%
3 star		4%
2 star		1%
1 star		5%

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Top Customer Reviews

🌟 Amazing Power Bank 🌟

By Tim D. TOP 500 REVIEWER on October 12, 2015

It's come to my attention that many people don't really understand what they are buying when they buy a power bank, also known as an external battery. So I'd like to start by briefly covering what a power bank is and what the various terms mean that are used when discussing them. If you're already an expert on this topic, please skip the next three paragraphs to read my experience with this product. If you simply want the summary, go to the last paragraph.

A power bank is nothing more than an external battery that you can use to power and / or charge just about any device that has a cord that connects to a power source via a standard USB port. They come in a variety of shapes and sizes and configurations, but there are really only three things to look for when looking at performance. One is the number of USB ports on the device, another is the amperage (listed in milliamps or amps) available through each port and lastly, the total amount of energy stored in the battery, which may be referred to as "capacity" for which the units are usually referred to in milliamp-hours, or mAh. If you have a newer Android smartphone or tablet that you want to charge, then you want a power bank that offers a 2 amp USB port. If you have an iPod or iPhone, you can generally get away with a single 1 amp port, but I always recommend having at least one 2 amp port. A power bank with more than one port will, in theory, allow you to charge more than one device at a time. The thing to keep in mind when shopping for a power bank is that manufacturer claims are often inflated to at least some degree. The most often exaggerated feature is the mAh capacity of a power bank and total amperage output is a close second.Read more ›

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Hands down the best battery bank!!!

By Mark kalwa on January 9, 2016

Verified Purchase

ill start off by saying that this is definitely a power bank that most people need whether its for laptop use or to have on standby for those times when you just don't know, if you might have power. Those other battery banks out there don't have half the rugged ability as the k2, with an exception to some(the sand blasted oxydation is really awesome) .From the photos you can see how compact this unit is compared to an iPhone 6s and to my goal zero sherpa 50.

Now lets talk about the options because there are a ton.I have connected the k2 to a HP DV8000 which is the advertised use and works great for that, its worth saying that the HP is a 17 inch screen laptop and the k2 charges and keeps it running at the same time.In addition to HP there are countless other laptops that this battery bank is compatable with, however not with apple laptops.Now physically my macbook pro can be connected to the k2 via a 3rd party cord but this option is not recomended because of the special voltage needs of apple devices.But if you notice i have connected my mac book pro 13 inch to a goal zero sherpa 50 and in return used the sherpa to charge my mac.

Now lets talk about the modularity of the systems that you can make,my sherpa 50 is a 50 watt hour device with an inverter for 110 volts, that give my options with other devices when I'm out camping in places without power.With the addition of the k2's 185 watt hours capacity that should give me 235 watts of power together.The k2 has a 20 volt and 12 volt output with 2.5 male plug in addition has 4 usb ports 2 of them have a 2.1A and the other 2 have a 1.0A output.

This battery pack is truly amazing in every way, if i had to give it one con is the weight but that easily makes up for its true power capacity.In my opinion i highly recommend it!!!!!

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Massive Real Capacity, Charges Laptops and mobile phone alike, quick self charging

By Raks TOP 1000 REVIEWER on October 12, 2015

Everytime i see a super high capacity power bank, I remember bag of sands. This is because some time back I saw how those 40K-50K capacity power banks have nothing but a mere 2200mAh single cell and lots of sand to add to weight. This is a real 50000mAh Power bank which is meant, not just to charge your mobile phones or tablets but your laptops as well. Infact this is primarily a laptop power bank.

I want to warn potential buyers that this thing is not light. Owing the the high capacity, it is pretty heavy and probably size of a desktop powered external HDD.

Package Contents
-------------------------

In the big box this thing arrives in, you get…

--1x 50000mAh Power Bank
--1x round female to female cable
--10x Laptop Connectors
--1x Charging brick with cable
--1x MicroUSB Cable
--1x Carry Case with small external compartment
--1x User Manual
--FREE GIFT

Product Design
---------------------

The power bank looks like any other power bank, just that is bigger. On the main side where all ports are there, you have..

--4x USB Ports (2x 2.1A, 2x 1A)
--Big Round Button to turn on the power bank
--1x DC IN Round input port
--1x DC OUT 12V/2.5A Round Port
--1x DC OUT 20V/3A Round Port

There are 4 LED Lights as well which indicate the amount of power remaining in the power bank. Each represents steps of 25% or around 12500mAh theoretically. There is nothing much else on the rest of the power bank except capacity and input voltage and amperage written on its side along with the name K2.Read more ›

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Most Recent Customer Reviews

this is amazing! I haven't had it for a long time ...

this is amazing! I haven't had it for a long time but so far it works just fine with my hp pavilion g7

Published 9 hours ago by Francisco Gutierrez Loza

Four Stars

Can't take on planes, otherwise, wish could provide power for higher amperage/voltage laptops.

Published 1 day ago by Illinois

After working very nicely since my purchase

I bought the MaxOak K2 on Amazon on June 21, 2016. Since then I only use this external battery once a week in college. Read more

Published 5 days ago by Paul Watrous

Versatile and Sleek Power Bank, Great Customer Service!

Great customer service and great product! I am impressed by the excellent customer service I received when I thought the tips provided to connect the power supply to the computer... Read more

Published 6 days ago by Avid Reader

Four Stars

As promised

Published 6 days ago by Charles Johnson

Long battery life

I use to this power my Celestron Nextstar SE 8 telescope. It can run the scope for several nights with ease and is probably overkill. Read more

Published 9 days ago by Amazon Customer

BEST LAPTOP BATTERY EXTENSION

Overall a great battery. This is what I'm looking for for years, a power bank that can feed my old fashioned power hungry laptop. Read more

Published 10 days ago by SilverAge

Five Stars

excellent product. I highly recommend it

Published 10 days ago by Jacopo Canello

maximum power banks to carry on passenger flights

Yes I read some airports rules that only let passenger's carry up to 95 watts max power banks this one is almost double

Published 12 days ago by carlos martinez

Big, Heavy, Lots and lots of reserve power.

Big, Heavy, Lots and lots of reserve power but I would buy again if needed.

Published 12 days ago by E. R. S.

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MAXOAK 50000mAh 6 Port(5/12/20v) Portable Charger External Battery Power Bank for Laptop & Notebook-Most of Sony Dell Hp Toshiba Samsung Lenovo Acer IBM NEC Mobile,Tablet(not for Apple Laptop)

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