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Energy anytime, anywhere
PowerOak stands for quality and our products are the best proof of it.
This is a multifunctional, powerful, huge capacity power pack which is configured with 1 x DC 12V / 3A ports, 1 x DC 20V / 5A port and 4 x fast-charging 5V / 2.1A USB ports.
It has built in lithium-ion battery cell of best quality, compact, lightweight and durable.
PowerOak K2 solar 185Wh portable power bank is capable of powering your LED lights/strips, smartphones, laptops, camera, CPAP, small fans and small appliances in an off-grid or power outage situation. Ideal for indoor daily use or outdoor emergency, camping, weekend trip or wherever you need energy anytime, anywhere.
Solar charging made possible by built in MPPT. You can buy our solar panels available in the web shop or you can use your own, as long as the input voltage has a range between 15V and 25V and a maximum total power of 80W
DC12V is used for digital devices such as:
surface pro laptop / camera / CPAP /fans / small car refrigerator / led lamp / strip
(pls make sure the DC voltage match-12V)
DC20V is used for devices such as:
Most of laptops / CPAP & Macbook notebook / laptops cannot be charged with K2 solar.
It accepts DC voltage of the laptop around 20V.
14 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 x 2.1mm to below adapter):
A:6.0/1.4(6.5 x 4.4mm)FUJITSU/SONY
I:7.4/0.6mm(or 7.4/5.0mm) DELL/HP
For Dell: 7.4/0.6mm(or 7.4/5.0mm) DELL
K:7.9/0.9mm(or 7.9/5.5mm) IBM/LENOVO
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)
FOR DELL: 4.5 x 3.0mm Dell laptop with 4.0 x 3.0mm
N:4.0 x 1.35mm ASUS laptop with 4.0 x 1.35mm connector
G:4.0 x 1.7mm Lenovo laptop with 4.0 x 1.7mm connector
We recommend the output voltage of solar panel is between 15-25V and the output power is less than 80W.
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 turns off automatically for several seconds or minutes, it may be caused by overcurrent / lowcurrent protection.
If automatic turn off is caused by overcurrent protection , please close the screen of your laptop or fully charge 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 K2 solar can charge my laptop?
Please check the label pasted on the adapter of your laptop. If it is more than 95W (DC output current is more than 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.
Can charge Surface Pro 3 (but you need to buy the cable yourself-DC5.5 x 2.1mm to surface pro connector)
Can charge surface pro 4 (if the DC output voltage is 12V)
Cannot charge Surface Pro 4 (only if DC voltage is 15V)
Cannot charge Lenovo Yoga 3 14, yoga 900 (20V 3.21A), Yoga 3 11 13 milx 4 700s(20v 2a)
Cannot charge Dell XPS 12(Type C)
Cannot charge Apple Laptop
Cannot be recharged by car charger (12V)
Cannot take on airplane (185Wh)