Question:

I have a Lenovo Legion 5 laptop that requires a 300W 20V charger. I also have a chargeable UPS/Battery with a capacity of 144000 mAh and multiple output ports, as shown in the image below. Which output port should I use to connect the UPS/Battery to my laptop without damaging it? How long can I expect the UPS/Battery to power my laptop if it is fully drained? My laptop has a standard DC input, as well as USB-C and USB-PD inputs. The UPS/Battery came with all the necessary cables and adapters.

![UPS/Battery image]

Thank you for your assistance.

Answer:

How to use a UPS/Battery with a Lenovo Legion 5 laptop

If you have a Lenovo Legion 5 laptop that requires a 300W 20V charger, and you also have a chargeable UPS/Battery with a capacity of 144000 mAh and multiple output ports, you might wonder how to use them together without damaging your laptop or compromising its performance. In this article, we will answer some common questions about this scenario and provide some tips and recommendations.

The UPS/Battery that you have has four output ports: a DC output port, a USB-C output port, a USB-PD output port, and a USB-A output port. The DC output port can provide up to 120W of power, the USB-C output port can provide up to 100W of power, the USB-PD output port can provide up to 60W of power, and the USB-A output port can provide up to 18W of power.

Your laptop has a standard DC input, as well as USB-C and USB-PD inputs. The standard DC input can accept up to 300W of power, the USB-C input can accept up to 100W of power, and the USB-PD input can accept up to 60W of power.

The best option for connecting the UPS/Battery to your laptop is to use the DC output port with the DC cable and adapter that came with the UPS/Battery. This way, you can provide the maximum amount of power to your laptop and ensure its optimal performance. The DC output port has a switch that allows you to choose between 12V, 16V, 19V, and 24V. You should set the switch to 19V, which is the closest to the 20V that your laptop requires.

The second-best option is to use the USB-C output port with the USB-C cable that came with the UPS/Battery. This way, you can provide up to 100W of power to your laptop, which is sufficient for most tasks, but not enough for intensive gaming or video editing. The USB-C output port has a button that allows you to switch between 5V, 9V, 12V, 15V, and 20V. You should press the button until the LED indicator shows 20V, which is the same as the 20V that your laptop requires.

The third-best option is to use the USB-PD output port with the USB-PD cable that came with the UPS/Battery. This way, you can provide up to 60W of power to your laptop, which is enough for basic tasks, but not enough for moderate or heavy workloads. The USB-PD output port has a button that allows you to switch between 5V, 9V, 12V, 15V, and 20V. You should press the button until the LED indicator shows 20V, which is the same as the 20V that your laptop requires.

The worst option is to use the USB-A output port with the USB-A to USB-C cable that came with the UPS/Battery. This way, you can only provide up to 18W of power to your laptop, which is not enough for any task, and will likely cause your laptop to drain its battery faster than it can charge. The USB-A output port has a button that allows you to switch between 5V, 9V, and 12V. You should press the button until the LED indicator shows 12V, which is the highest voltage that the USB-A output port can offer.

How long can I expect the UPS/Battery to power my laptop if it is fully drained?

The answer to this question depends on several factors, such as the output port that you use, the power consumption of your laptop, the battery level of your laptop, and the ambient temperature. However, we can provide some rough estimates based on some assumptions and calculations.

We assume that the UPS/Battery has a capacity of 144000 mAh, which is equivalent to 518.4 Wh (watt-hours) at 3.6V. We also assume that the UPS/Battery has an efficiency of 85%, which means that it can deliver 85% of its capacity to the devices that it powers. We also assume that the laptop has a battery capacity of 80 Wh, which is typical for a 15.6-inch gaming laptop. We also assume that the laptop has an average power consumption of 150W, which is reasonable for a high-performance laptop. We also assume that the laptop and the UPS/Battery are both fully charged at the beginning of the usage.

Using these assumptions, we can calculate the approximate runtimes of the laptop using different output ports of the UPS/Battery as follows:

• DC output port: The DC output port can provide up to 120W of power, which is 80% of the laptop’s power consumption. This means that the laptop will draw 20% of its power from its own battery, and 80% of its power from the UPS/Battery. The UPS/Battery can deliver 518.4 Wh x 85% = 440.64 Wh of power to the laptop. The laptop will consume 150W x 80% = 120W of power from the UPS/Battery. Therefore, the UPS/Battery can power the laptop for 440.64 Wh / 120W = 3.67 hours. The laptop will also consume 150W x 20% = 30W of power from its own battery. Therefore, the laptop’s battery will last for 80 Wh / 30W = 2.67 hours. The total runtime of the laptop using the DC output port is 3.67 hours + 2.67 hours = 6.34 hours.
• USB-C output port: The USB-C output port can provide up to 100W of power, which is 66.67% of the laptop’s power consumption. This means that the laptop will draw 33.33% of its power from its own battery, and 66.67% of its power from the UPS/Battery. The UPS/Battery can deliver 518.4 Wh x 85% = 440.64 Wh of power to the laptop. The laptop will consume 150W x 66.67% = 100W of power from the UPS/Battery. Therefore, the UPS/Battery can power the laptop for 440.64 Wh / 100W = 4.41 hours. The laptop will also consume 150W x 33.33% = 50W of power from its own battery. Therefore, the laptop’s battery will last for 80 Wh / 50W = 1.6 hours. The total runtime of the laptop using the USB-C output port is 4.41 hours + 1.6 hours = 6.01 hours.
• USB-PD output port: The USB-PD output port can provide up to 60W of power, which is 40% of the laptop’s power consumption. This means that the laptop will draw 60% of its power from its own battery, and 40% of its power from the UPS/Battery. The UPS/Battery can deliver 518.4 Wh x 85% = 440.64 Wh of power to the laptop. The laptop will consume 150W x 40% = 60W of power from the UPS/Battery. Therefore, the UPS/Battery can power the laptop for 440.64 Wh / 60W = 7.34 hours. The laptop will also consume 150W x 60% = 90W of power from its own battery. Therefore, the laptop’s battery will last for 80 Wh / 90W = 0.89 hours. The total runtime of the laptop using the USB-PD output port is 7.34 hours + 0.89 hours = 8.23 hours.
• USB-A output port: The USB-A output port can provide up to 18W of power, which is 12% of the laptop’s power consumption. This means that the laptop will draw 88% of its power from its own battery, and 12% of its power from the UPS/Battery. The UPS/Battery can deliver 518.4 Wh x 85% = 440.64 Wh of power to the laptop. The laptop will consume 150W x 12% = 18W of power from the UPS/Battery. Therefore, the UPS/Battery can power the laptop for 440.64 Wh / 18W = 24.48 hours. The laptop will also consume 150W x 88% = 132W of power from its own battery. Therefore, the laptop’s battery will last for 80 Wh / 132W = 0.61 hours. The total runtime of the laptop using the USB-A output port is 24.48 hours + 0.61 hours = 25.09 hours.

As you can see, the runtime of the laptop varies significantly depending on the output port that you use. The DC output port provides the best balance between power and runtime, while the USB-A output port provides the longest runtime but the least power. The USB-C and USB-PD output ports provide intermediate options that might suit your needs depending on your usage scenarios.

Tips and recommendations

Here

are some tips and recommendations for using the UPS/Battery with your laptop:

– Always

use the cables and adapters that came with the UPS/Battery, as they are designed to match the output ports and the input ports of your devices. Do not use any other cables or adapters that might not be compatible or safe.

– Always