PowerOak K2 50,000mAh

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Key specs

Battery capacity
50000 mAh
Recommended for product type
Camera, Laptop (MacBook), Laptop (Windows), Smartphone, Smartwatch, Tablet
Average charging time Power bank
8 h
Number of USB ports
Type of USB port
Standard USB-A

Pros and cons

According to our power bank expert
  • Pros:
    With a capacity of 50,000mAh, this power bank has an above-average capacity compared to other power banks in this price range.
  • Pros:
    With a current of 3 amperes, you can charge your tablet too.
  • Pros:
    The power bank has 4 USB ports, so you can charge multiple devices at the same time.
  • Con:
    At 1.26kg, this power bank is heavier than average.
Product Expert power banks

If you need a truly powerful power bank, the PowerOak K2 50,000mAh is the one for you. This power bank will recharge your iPhone 6 27 times. You won't be the only one to benefit from this power bank on a weekend break: your whole family can join in the fun. In addition to your smartphone, you can also use this power bank to easily charge your laptop, camera, or tablet. Read the manual which laptops are compatible with the power bank.

Note: this power bank includes various laptop connectors. Please take a look at the connectors in the manual and check whether your device has the same input. If not, make sure to add the right cable to your shopping cart.

Included by default

  • Manual
  • Adapter
  • Charging cable
  • 14 laptop connectors
  • Multifunctional bag

Recommended combinations

  • Recommended by our expert
    recommended by our expert

    Select the right cable for your device, and an adapter to charge your power bank, with a discount!

    PowerOak K2 50,000mAh + Charger adapter + Data cable

    • PowerOak K2 50,000mAh
    € 222,97
    Delivered tomorrow
    Delivered tomorrow



Product number
Manufacturer code
2 years
Warranty type
Carry-in warranty

Physical properties

20,7 cm
13,6 cm
3,3 cm
1,26 kg

Charging properties

Battery capacity
50000 mAh
Estimated charges Power bank
Average charging time Power bank
8 h
Quick charge functionality
Wireless charging
Voltage output
12 - 20 V
Maximum current (output)
2,1 - 5 A
Maximum current (input)
2,5 A
15 W

Extra functionaliteiten

Solar cell
Battery level indicator


Recommended for product type
Camera, Laptop (MacBook), Laptop (Windows), Smartphone, Smartwatch, Tablet
Type of USB port
Standard USB-A
Made for brand
Acer, Alcatel, Apple, Asus, BlackBerry, CAT, Crosscall, Doro, General Mobile, Google, HP, HTC, Honor, Huawei, LG, Lenovo, Microsoft, Motorola, Nokia, Oneplus, Samsung, Sony, Wiko, Wileyfox
Suitable for model
Apple iPhone 6, Apple iPhone 6 Plus, Apple iPhone 6s, Apple iPhone 6s Plus, Apple iPhone 7, Apple iPhone 7 Plus, Apple iPhone 8, Apple iPhone 8 Plus, Apple iPhone SE, Apple iPhone SE 2, Apple iPhone X, Apple iPhone Xr, Apple iPhone Xs, Apple iPhone Xs Max, Huawei Mate 20, Huawei Mate 20 Lite, Huawei Mate 20 Pro, Huawei P Smart, Huawei P Smart Plus, Huawei P10, Huawei P10 Lite, Huawei P10 Plus, Huawei P20, Huawei P20 Lite, Huawei P20 Pro, Huawei Y6 (2018), Huawei Y7 (2018), LG G6, LG G7, LG Q7, Motorola Moto E5 Plus, Motorola Moto G5 Plus, Motorola Moto G5S, Motorola Moto G5S Plus, Motorola Moto G6, Motorola Moto G6 Play, Motorola Moto G6 Plus, Nokia 1, Nokia 2, Nokia 2.1, Nokia 3.1, Nokia 5, Nokia 5.1, Nokia 6 (2018), Nokia 6.1 (2018), Nokia 7 Plus, Nokia 7.1, Nokia 8, OnePlus 5, OnePlus 5T, OnePlus 6, OnePlus 6T, Samsung Galaxy A6 (2018), Samsung Galaxy A6 Plus (2018), Samsung Galaxy A7 (2018), Samsung Galaxy A8 (2018), Samsung Galaxy A9, Samsung Galaxy J3 (2016), Samsung Galaxy J3 (2017), Samsung Galaxy J4 Plus, Samsung Galaxy J5 (2016), Samsung Galaxy J5 (2017), Samsung Galaxy J6 (2018), Samsung Galaxy J6 Plus, Samsung Galaxy J7 (2016), Samsung Galaxy J7 (2017), Samsung Galaxy Note 8, Samsung Galaxy Note 9, Samsung Galaxy S7, Samsung Galaxy S7 Edge, Samsung Galaxy S8, Samsung Galaxy S8 Plus, Samsung Galaxy S9, Samsung Galaxy S9 Plus, Sony Xperia L1, Sony Xperia XA2, Sony Xperia XA2 Plus, Sony Xperia XA2 Ultra, Sony Xperia XZ2 Compact, Sony Xperia XZ3, Xiaomi Mi 8, Xiaomi Mi A2, Xiaomi Mi A2 Lite, Xiaomi Pocophone F1, Xiaomi Redmi Note 5, Xiaomi Redmi Note 6 PRO

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