Complete Mobile power back up system

Capable mobile power station! Here's a breakdown of its feature

**Power Output:**

* **300W Sine Wave Inverter:** This is a good inverter size for powering small appliances and electronics. A sine wave inverter ensures clean power delivery which is important for sensitive equipment.

* **40Ah Maintenance Free Battery:** The 40Ah capacity will provide a decent runtime for powering devices for a few hours. Maintenance free batteries are convenient as they don't require regular electrolyte level checks.

**Outputs:**

* **4-Way Extension Socket with US Ports:** This allows you to connect multiple devices simultaneously. Make sure the total wattage of the devices plugged in doesn't exceed the inverter's 300W capacity.

**Portability:**

* **Mobile Trolley with Wheels:** This makes it easy to transport the power station wherever you need it.

**Applications:**

* **Powering small office equipment:** This setup can provide backup power for laptops, routers, and printers for several hours during a power outage, keeping your small office operational. 

* **Phone charging:** With the four US ports, you can charge up to four phones simultaneously.

**Runtime:**

* The exact runtime will depend on the specific wattage of the devices you're powering. However, based on the 40Ah battery and 300W inverter, you can expect to get roughly 4 hours of runtime for devices totaling around 75 watts (300W / 4 = 75W).

**Additional Considerations:**

* **Recharging the battery:** You'll need a way to recharge the battery. Some mobile power stations can be recharged from an AC outlet, car outlet, or solar panels (usually sold separately).

* **Weight:** The weight of the mobile power station will depend on the battery size and other components.

Overall, a well-equipped mobile power station that would be a good option for providing backup power to a small office or for powering devices while on the go.