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Laptop Battery Pack 50000mAh Power Bank for Laptop, Portable Laptop Charger 20V/12V/5V External Battery Backup Compatible with Notebook Laptop Tablet Phone

4.1 4.1 out of 5 stars 129 ratings

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Purchase options and add-ons

Connector Type usb
Brand PowerOak
Battery Capacity 50000 Milliampere Hour (mAh)
Color Black
Special Feature Portable, Over Charging, Over Voltage Protection

About this item

  • [ULTRA HIGH CAPACITY] POWER BANK with 50000mAh/185Wh(TSA are not Approved for Airline Travel/external battery charger) adequate supply for your laptops,phones and tablets,it can charge your iPhone 6 Plus nearly 11 times,iPhone 6 more than 17 times,Galaxy S6 almost 11 times,no trepidation about power shortage, let you charge your devices any time,and facilitating your travel life more beautiful.This This Battery Pack Can Be Recharged in Just 6-8 Hours.
  • [ MULTI-FUNCTIONAL INTERFACE] It Has 6 Output Ports. One 20V/5A 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. It can charge several devices simultaneously and fast. laptop connector contains Lenovo, DELL, Toshiba, SONY, HP and etc. make you charge your laptop anytime, anywhere. And the best protecting devices making you use it under more secure and more assured conditions.
  • [IMPROVED SAFETY TECHNOLOGY] Constructed with Lithium-ion Polymer, Battery Cells built-in 6 security protections to ensure, make it safety use and 1000+ recharge cycles. Keeping constant power output for charging the devices, also with preventing overcharge/over discharge/overvoltage/overcurrent/short circuit function and restoring protection.
  • [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.
  • [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.

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Product Description

XT

All-in-One Power Bank

Portable Power Station for indoor or outdoor use .Compact and lightweight potable laptop charger featured with one DC20V5A (max.130W) ,one DC12V2.5A and Four 5V USB outputs, provide off-grid power backup for emergency power failure while engaged in outdoor working and outdoor exploring life.We work and play on on our laptop, take laptop on camping trip or travel.no one wants to be caught out there with no power, this is why a good portable laptop power bank is critical and useful.

Pay Attention:

  • Not TSA approved because of high capacity 185Wh/50000mAh 3.7V
  • Can not charge Laptops with USB-C input port(we suggest buy our AC10 99Wh AC outlet power bank)
  • Support 2 Recharge Way: AC Wallout/Car( but need to buy a DC to AC power inverter).
  • Compatible with 95% Laptops including Dell HP Lenovo Surface pro Sony Samsung Acer Toshiba iPad Phone Notebook
  • Can charge laptops Max.130W-135W.
  • Longer charge time/low heat than AC outlet power bank.
  • We found there are many power bank designed for smartphones, but no specific power bank for Laptops, so we develop this POWEROAK 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 is 185Wh,exceed Max.160wh flight limits, can not allowed to take on airplane.

  • Cann't charge Surface Pro 4( if DC voltage is 15V) ,but Can charge surface pro 4 ( if the DC output voltage is 12V) ,Can charge Surface Pro 3(but need buy DC5.5*2.1mm to surface pro cable yourself)
  • 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) and other type-C laptop
  • Cann't charge Macbook/Macbook air/Macbook Pro
  • Cann't be recharged by solar panel/car charger

K2-3

K2-2

K2-3

All-in-One Power Bank

  • Ultra High Capacity 50000mAh 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.
  • The widest compatible Laptop Power Bank Total 14 kinds of connectors are supplied to assure a maximum compatibility with a wide range of popular laptops notebooks.

Portable and Easy to Carry

  • 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)

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 very lightweight and small size as lower capacity power bank, pls check the size and weight carefully ahead.

High Quality&Safe Gurranted

  • We take quality, safety as the most important thing.we built in high quality lithium-ion polymer battery cell certifacted with UL1642 and whole power bank certificated with UL2056.
  • We have strict material inspection and production supervision and testing process, ensuring the highest quality,safety, reliability and performance.

PowerOak External Laptop Battery Charger 50000mah power bank

K2-3

,

,

50000mAh/185Wh Laptop Power Bank

  • All in One Charge-it has 6 outputs for different digital devices. One 20V/5A, one 12V/2.5A, two 5V/2.1A and two 5V/1A output allow you charge several devices like laptop, tablet, phone simultaneously.
  • Support charge and discharge at the same time.

Highlights

  • Built in multi-protection function including overload protection, over-current, low-current protection,etc.
  • Recharge the power bank in 6-8 Hrs.
  • The First Power Bank Specially Designed for Laptop/Notebook
  • It includes 14 kinds of DC connectors for almost 95% of Laptops (Max.130W)

Package Included:

  • Laptop power bank(K2) x 1
  • AC adapter charger x 1
  • DC cable x 1
  • Laptop charge connector x 14
  • Multifunction bag x 1
  • Manual x 1

K2-5

The widest compatible Laptop Power Bank:

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:>7A

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 or fully charged your laptop first, and then use our power bank to charge the laptop.if you are trying to power a Windows laptop and the battery keeps disconnecting over and over, you might have to go into Power settings, Advance power settings, and find the setting for "Turn Harddrive off after" and set that to NEVER, and in power options DISABLER "Intel Cppc Energy Saving"

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.

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Price$109.99-16% $13.49
Typical:$15.99
$9.99-33% $21.99
List:$32.99
$59.99
Delivery
Get it Apr 18 - 30
Get it Apr 18 - 30
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Charging power
4.5
4.0
4.1
Battery life
4.3
4.0
3.7
For traveling
4.2
4.1
3.8
Value for money
3.1
4.2
4.0
Sold By
MAXOAK US
zhangyuanyun666
tongshanxianbaoxiangdianzishangwuyouxiangongsi
CONXWAN
PSOOO
capacity
50000 milliampere hour
5000 milliamp hours
5000 milliamp hours
26800 milliamp hours
50000 milliamp hours
connector type
usb
USB Type C, USB Type A
USB Type C
number of ports
2
2
4
3
compatible devices
Tablet, Camera
ipad, type c
Laptop
Smartphone, Tablet, Camera, Smartwatch, Speaker
Smartphone
voltage
12 volts
5 volts
5 volts
5 volts
3.7 volts
battery charge time
8 hours
5 hours
6 hours
weight
1.26 kilograms
358 grams
1.38 pounds

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Product information

Warranty & Support

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

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PowerOak

PowerOak Laptop Battery Pack 50000mAh Power Bank for Laptop, Portable Laptop Charger 20V/12V/5V External Battery Backup Compatible with Notebook Laptop Tablet Phone


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Customer reviews

4.1 out of 5 stars
4.1 out of 5
129 global ratings

Customers say

Customers like the quality, performance, adapters and capacity of the power bank. For example, they mention it's well done, works well for laptop and USB, comes with lots of adapters, and has tons of capacity. That said, opinions are mixed on weight and value.

AI-generated from the text of customer reviews

28 customers mention22 positive6 negative

Customers like the quality of the power bank. They say it is the best battery available, it runs for 14 hours without dying, and it has a nice and easy to carry case. Some mention that it comes with more than half a charge.

"...Very good quality and includes a ton of adapters for charging almost anything. I have zero complaints and couldn't be happier...." Read more

"...It came with more than half a charge but I charged it completely before using it. I brought it to class with me...." Read more

"...The brick charged up quickly and seemed ready to go to use if only the tip would have fit its end on the cord...." Read more

"I just got this today, it came fully charged. I have been running my laptop on it for about 6 hours now and it still shows a full charge...." Read more

19 customers mention15 positive4 negative

Customers like the performance of the power bank. They say it's very effective, reliable, and useful. Some say that it works well for laptops and USB. Overall, most are satisfied with the performance and functionality of the product.

"This thing is fantastic! With 50000mAh this keeps the kids ipad and phones going all day long when on long road trips or camping trips...." Read more

"...Very effective and reliable device, however. Works well for me on 10 hour flights powering my power-hungry laptop. Lots of inputs and outputs, too!..." Read more

"...Its weight is not inconsequential...but it works like a champ." Read more

"...Very user-friendly, powerful and with the included adapters we haven't come across a device of our we can't charge...." Read more

8 customers mention6 positive2 negative

Customers like the adapters that come with the power bank. They mention that it has a bunch of attachments for charging, and it has fast charging. They appreciate the 4 USB outputs, so they no longer need to fight over the smaller one.

"...With 4 usb outputs, they no longer need to fight over the smaller battery chargers we had before. The carrying case is a nice touch too...." Read more

"...It came with adaptors to fit my laptop so I didn't have to buy any. This was a great choice and I am VERY happy with my decision to purchase." Read more

"...in the event of power outages since I work from home but none of the 14 adapter tips fit on the end of their cord, which was mind boggling to me...." Read more

"...I got the unit the other day and charged it. It has a bunch of attachments for charging including one for my Lenovo laptop...." Read more

7 customers mention5 positive2 negative

Customers like the capacity of the power bank. They mention it has tons of capacity, is awesome for bulk storage, and has lots of inputs and outputs.

"...Lots of inputs and outputs, too! I'm quite satisfied with it." Read more

"...this one is for you. Huge capacity." Read more

"...Also, i was disappointed that the carry case provided doesnt really have enough storage to be able to pack the charging cables with you...." Read more

"these are awesome for bid storage , hey are a little bulky but you defnitky get more than you pay for , if your in the market for big universal..." Read more

5 customers mention5 positive0 negative

Customers like the accessories that come with the power bank. They mention that it has a carrying case, a packing zip box, and a nice carrying case. Some say that the power pack needs a bag for the extras.

"...The carrying case is a nice touch too. It's the perfect size and really lightweight considering the power output...." Read more

"...great, is compact and light enough to take anywhere, and comes with a nice case...." Read more

"Awesome battery, tons of capacity, and very nice accessories. Powers my Dell XPS 13 very well." Read more

"great design and also the packing zip box is really cool" Read more

10 customers mention5 positive5 negative

Customers are mixed about the weight of the power bank. Some mention that it's the lightest and best battery available, while others say that it is a bit heavy and bulky.

"...It's the perfect size and really lightweight considering the power output...." Read more

"...Its heavy but thats expected, but I didnt think it would be this heavy...." Read more

"...Its weight is not inconsequential...but it works like a champ." Read more

"these are awesome for bid storage , hey are a little bulky but you defnitky get more than you pay for , if your in the market for big universal..." Read more

6 customers mention4 positive2 negative

Customers have mixed opinions about the value of the power bank. Some customers say it's well worth the price and an excellent investment for many occasions, while others say it is not worth the money and a useless hunk of technology.

"An excellent investment for many occasions. One is used as a hub for charging cameras, cells and other devices...." Read more

"...If I can't get the missing cable, this thing is just a waste of money and I'll likely end up e-cycling it...." Read more

"...This investment was well worth it. I would recommend it." Read more

"Worth the Big Price..." Read more

Excellent product!
5 Stars
Excellent product!
This thing is fantastic! With 50000mAh this keeps the kids ipad and phones going all day long when on long road trips or camping trips. With 4 usb outputs, they no longer need to fight over the smaller battery chargers we had before. The carrying case is a nice touch too. It's the perfect size and really lightweight considering the power output. Very good quality and includes a ton of adapters for charging almost anything. I have zero complaints and couldn't be happier. If you're in the market for a good battery charger to take with you and keep all your electronics charged, stop wasting your time with the small ones, just get this and be done!
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Top reviews from the United States

Reviewed in the United States on May 21, 2018
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5.0 out of 5 stars Excellent product!
Reviewed in the United States on May 21, 2018
This thing is fantastic! With 50000mAh this keeps the kids ipad and phones going all day long when on long road trips or camping trips. With 4 usb outputs, they no longer need to fight over the smaller battery chargers we had before. The carrying case is a nice touch too. It's the perfect size and really lightweight considering the power output. Very good quality and includes a ton of adapters for charging almost anything. I have zero complaints and couldn't be happier. If you're in the market for a good battery charger to take with you and keep all your electronics charged, stop wasting your time with the small ones, just get this and be done!
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4 people found this helpful
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Reviewed in the United States on October 4, 2018
Reviewed in the United States on September 13, 2019
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1.0 out of 5 stars Adapter tips don't fit on Poweroak charger end (male end)
Reviewed in the United States on September 13, 2019
I was so wanting this as backup power for my laptop in the event of power outages since I work from home but none of the 14 adapter tips fit on the end of their cord, which was mind boggling to me. I returned the one I ordered and asked for a replacement and as hard as it is to believe, those 14 tips did NOT fit on the end of the cord either! It's insane it could happen again and wouldn't believe it had I not experienced it. I give up. Not going to try a third time. Other than that, it seems like this would have been a good product. The brick charged up quickly and seemed ready to go to use if only the tip would have fit its end on the cord. I don't understand why QC wouldn't test to ensure the tips attach to the their cord first before sending out. I've attached photos simply to show what came with the brick and show close-ups of one of the tips. (I couldn't actually photograph a demonstration of the adapter tip not fitting onto the charger cord male end.)
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Reviewed in the United States on June 20, 2019
Reviewed in the United States on January 11, 2023
Reviewed in the United States on December 11, 2018
Reviewed in the United States on June 6, 2019
3 people found this helpful
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Reviewed in the United States on March 27, 2018
One person found this helpful
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