Question Does the Selore&S Global Docking Station give 100w ?

[Manuel Jordan]

Hello Friends

My uncle bought this laptop:

Dell Inspiron Plus 16" Touchscreen Laptop - Intel Core Ultra 9 185H - 1920 x 1200 - Windows 11 - 32GB RAM - 2TB SSD

Even when the laptop itself has the classic Power Jack (the cylinder) the Laptop Charger is USB Type C.

Therefore

Laptop Charger -----> (USB Type C) Laptop Yes
Laptop Charger -----> (Power Jack) Laptop No

The laptop charger has the following data

Dell 100.0w AC Adapter
Dell Output 5.0v --- 3.0A/15.0W,
9.0v --- 3.0A/27.0w,
15.0v --- 3.0A/45.0w,
20.0v --- 5.0A/100.0w or
12.0-20.0v---5.0A max./100w max
INPUT 100-240v~1.7A 50-60Hz
Model No Dell LA100PM220

Thus practically is this one:

Dell Laptop Charger 100W Watt USB Type C Thunderbolt 3 AC Power Adapter DA100PM220 LA100PM220 HA100PM220

Because I am not an expert: we are assuming the Laptop must receive from the Charger 100W (Correct me if we are wrong)

Now, the reason of this post. Because my uncle needs the USB-C port free for other uses, the option exists to buy this Docking Station:

USB C Docking Station Dual HDMI Monitor,USB C to Dual HDMI Adapter with 2 HDMI Ports,PD Charging,SD/TF,USB A&C 3.0 Ports,USB C Hub HDMI for Dell XPS/HP/Lenovo/Surface/Yoga etc

It has a lot of buys and a well amount of nice customer reviews

The main concern and reason of this post

Question;

• Does this Docking Station really have an output of 100w?

First: If you see the 5th Figure of the Docking Station link, theoretically applies the following sequence:

Dell Laptop Charger (100w) ----> Docking (100w) ----> Laptop

Thus theoretically, is it safe buy the docking station to be used for the laptop?

Second: but in the Docking Station link it says:

• [Speedy charging 100W] This dual hdmi adapter for 2 monitors with a USB-C power delivery port(near the SD/TF) can charge your laptop anytime; hdmi hub for multiple monitors input 100W, output 87W. Please Note: Power charger & charging cable is not included in the package. Note:The second USB C port is only for data transfer.

As you can see it does mention of 87w. So I'm confused if the output is 100w or 87w ?

Third: About the italic part, there fits the original Dell Laptop Charger
Fourth: the other reason to buy this docking station is use in parallel 2 Monitors through HDMI

Therefore the expected functions and goals by the Docking are:

1. Serve as a bridge between the Dell Laptop Charger to the Laptop to deliver 100w as output
2. Connect 2 HDMI monitors at the same time

But we need an explicit confirmation for the first point

Thanks for your understanding

 

[Aeacus]

But we need an explicit confirmation for the first point

Can't give 100% certain answer, but from my knowledge and based on the amazon listing, it is so;

When hub is used to power just the laptop, hub can output 100W.
When hub is used to power two HDMI monitors, hub can output 87W.

HDMI connector itself also carries power, 5V and at least 55mA. But i've seen HDMI connectors that can sustain 700mA as well. So, anywhere between 0,25W and 3.5W is what is going through the HDMI connector.

Just think a bit;
When hub takes in 100W and needs to output 100W, then from where it can take the power to power: two HDMI ports, two USB type-A ports, one USB type-C (only data) port and SD/TF card slot?
It has to take the power from the wall. And when it does so, it can not provide 100W to the laptop, instead, it is limited to 87W, as said in the listing.

Because I am not an expert: we are assuming the Laptop must receive from the Charger 100W (Correct me if we are wrong)

Not necessarily.

100W is basically "fast charge", but laptop can take in lower amounts of watts as well. It then charges the battery slower.
Based on the charger, the wattage input range can be from 15W to 100W. Now, it may be so or it may not be. Official laptop specs doesn't say at what wattage range the laptop accepts.

Best to contact Dell and ask them directly. Could be that the laptop charge input is between 15W and 27W. Or is it fixed to 45W. I don't know. Best to ask Dell that.