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Ctechi GT300 is a perfect power station for indoors and outdoor activities, which equipped with high-quality lithium iron phosphate battery with the life  is 6 times longer. The unit will keep your essential device powered no matter on  the go or during a power outage at home. Also, charging 5 devices simultaneously.




Pure Sine Wave Inverter

The GT300's AC output port delivers a pure sine wave, the same as the mains. Provide safe and stable output waveform with no damage to electronics(such as CPAP machine and laptop).

3 Ways to Recharge

GT300 has 3 charging ways, with our adapter, it can be fully charged in nearly 5 hours. We recommend using a 18V/100W solar panel to charge the unit, which can be fully charged in nearly 6 hours. The car charger can be fully charged in about 5 hours.

LiFePO4 Battery, Safety First

Portable Power Station is equipped with high quality Lifepo4 battery,6 times long lifespan Pure sine wave inverter and BMS system provide extra protection for you and your equipment.

Discharge and Charge Simultaneously

Pass through charging technology, GT300 could run 5 devices simultaneously,it can also get charged and discharge at the same time.

Explore more with GT300

Ctechi GT300 is easy to carry, compatible with phones, tablets,

 laptops, ventilators, CPAP and more to meet your needs on the go.


Battery Info:




LiFePO4 (Lithium Iron Phosphate)

Life Cycles:

3500+Life Cycles


Recharge to 80% Every 3 Months

Manageme-nt System:

MPPT Controller, BMS


AC Outlets:

2 x 110V /2.72A 300W

Inverter Type:

Pure Sine Wave

Surge Power:


USB-C Port:


USB-A Port:

2 x 5V/3A (MAX 24W)

DC Outlets:

1 x 12V/10A (Car Outlet)


AC Charging Cable:


Solar Input:

12-26V/4A MAX (Recommend 18V 100W)

Car Input:

12V from Cigarette Lighter Port


AC Charging Cable :

≈5.8 HOURS

Solar (100W):

≈3.5 HOURS

Car Charging:

≈5.8 HOURS


Pass through Charging:





 25.7*16.0*16.5 CM

Charging Temperature:

32-104°F (0-40°C)

Operating Temperature:

14-104℉ (-10-40℃)

Storage Temperature:

14-104℉ (-10-40℃)


12 Months



Frequently Asked Questions

 Send us your question by filling out the form below, we will be happy to assist you.

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How do I calculate the up time of my device?

Working time = 299Wh * 0.9 / device's operating power

For example: assuming the device's power consumption is 300W, the working time is 518Wh * 0.9 / 300w = 1.56 hours (approximately)

How do I use the AC output?

Press the power button 3 seconds to turn the unit on. Short press the AC button, the LCD screen will light up with AC indication, you can use the AC outlet, press the AC button again to exit the AC output.

How often do I need to charge the GT300?

CTECHi LiFePO4 portable power can retain more than 50% of its remaining power when fully charged, even after twelve months of non-use. 

However, for the life of the product, we recommend charging the device every 3 months even when you are not using it.

Tips: When the product is drained, it needs to be charged with the wall charger.

Can it charge and discharge at the same time?


What is the maximum input charging power of the GT300

AC Charging: 60W

What kind of solar panels should I choose for GT500

12-26V/4A MAX (Recommend 18V 100W)


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