PowerOak K2 185Wh / 50000mAh laptop power bank
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- Delivery termsOrdered today, shipped within 1-2 days.
- Return Policy - 14 days to change your mind.
PowerOak energy anytime, anywhere
PowerOak stands for quality and our products are the best proof of that.
This is a multifunctional, powerful, large-capacity power adapter configured with 1* DC 12V/3A ports, 1* DC 20V/5A port and 4* 5V/2.1A USB fast charging ports.
It features the best quality lithium-ion battery cell, compact, lightweight and durable.
The PowerOak / Maxoak / Bluetti K2 185Wh Portable Power Bank is capable of powering LED lights/tape, smartphones, laptops, cameras, CPAP, small fans and small appliances in a grid or blackout situation.
Ideal for indoor daily use or outdoor emergencies, camping, weekend trips or anywhere you need power, anytime, anywhere.
DC12V is used for digital devices such as:
surface per laptop/camera/CPAP/fans/mini fridge/led lamp/strip
(please make sure the DC voltage is 12V)
DC20V is used for devices such as:
Most laptops. ATTENTION: CPAP and Macbook notebooks cannot be charged with K2.
It accepts laptop DC voltage around 20V.
14 different types of connectors ensure maximum compatibility with a wide range of popular notebook computers.
Please check your laptop connector / adapter before purchasing:
Laptop connector / adapter included (DC 5.5*2.1mm adapter 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
For Dell: 7.4/0.6mm (or 7.4/5.0mm)
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 suitable for Dell laptop.
Lenovo: fits for LENOVO laptop with square head with a thread in the middle
(not suitable for Lenovo half solid and half hollow laptop)
FOR DELL: 4.5*3.0mm 4.0*3.0mm Dell laptop
N: 4.0*1.35mm ASUS laptop with 4.0*1.35mm connector
G: 4.0*1.7mm Lenovo laptop with 4.0*1.7mm port
Low shutdown current for 5V port: 70mA
Low cut-off current for 12V port: 150mA
Low cut-off current for 20V connection: 200mA
High cut-off current for 20V connection: > 4.5A
If your laptop turns off automatically for a few seconds or minutes, it may be caused by over-current/low-current protection.
If the auto power off is caused by over-current protection, please close your laptop screen or fully charge your laptop and then charge the laptop with our power bank. If you're trying to power a Windows laptop and the battery keeps disconnecting, you may need to change power settings, pre-change power settings, and find the "Turn off hard drive after" setting. Select NEVER and in Power Options DISABLE "Intel Cppc Energy Saving"
How do I know K2 can charge my laptop?
Please check the label on your laptop's adapter. If it is more than 95W (DC output current is more than 5A), the power bank may shut down due to overcurrent during charging. For this reason, we do not recommend using our power bank to charge your laptop.
Can charge Surface Pro 3 (but you need to buy the cable by yourself - DC5.5*2.1mm to Surface Pro connector)
Can charge Surface Pro 4 (when the DC output voltage is 12V)
Surface Pro 4 cannot be charged (only when the DC voltage is 15V)
Lenovo Yoga 3 14, Yoga 900 (20V 3.21A), Yoga 3 11 13 milx 4 700s (20v 2a) cannot be charged
Dell XPS 12 (Type C) cannot be charged
Apple laptop cannot be charged
Cannot be charged with the car charger (12V).
Can't ride the plane (185Wh)
- TRUE ULTRA HIGH CAPACITY 50000mAh / 185Wh: Compatible with most popular laptops and notebooks (Can't charge any laptop with DC current above 5A). We offer 14 types of connectors for the most popular laptops (please ensure the connector fits your laptop before purchasing). Once fully charged, your K2 portable charger can charge your iPhone 6Plus about 11 times, iPhone 5 about 17 times and Galaxy S6 about 11 times.
- ALL-IN-ONE FAST CHARGE: It has 6 outputs. One 20V/5A for laptops, one 12V/2.5A for digital cameras, two 5V/2.1A and two 5V/1A for most smartphones, iPad, tablet and other USB charging devices. You can charge multiple devices at the same time to save a lot of time. Highly energy efficient and fast charging speed with DC input, OUR K2 charger can be charged in just 6 to 8 hours.
- MINIMAL SIZE & VERY LIGHT: A high ratio of size and capacity. This battery could be the smallest 50 000mAh laptop charger, size ONLY 20 x 13 x 3 cm and weight 1.26 kg. When you're on the go, you can quickly stow this power bank in your briefcase, backpack, or travel bag.
- SAFE, DURABLE & GUARANTEED: Manufactured with a lithium-ion polymer battery cell & 6 built-in safety protections to ensure safe use and 1000+ charge cycles. Four intelligent LED displays show the remaining power capacity. We manufacture, research and develop each product ourselves, using the latest technology and the best raw materials so that we have complete confidence in our product. We therefore offer our valued customers a 12-month hassle-free 100% satisfaction & money back guarantee.
- WHAT YOU GET: 1 x Laptop Charger (K2), 1x Home Charger, 1 x DC Cable, 14 x Laptop Charging Ports, 1 x Multifunctional Bag, 1 x Manual.
- Li-polymer battery
- Charger input
- AC 100V~230V
- DC 16.8V / 2.5A
- USB3&4: 5V / 1.0A
- Loading time
- 6~8 hours
- ≥1000 times
- Working temperature
- Storage temperature
- Product size
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