USB c powerbank for laptops

[Marcpc]

Hi. I have recently purchased a Lenovo legion 7i gen 6 intel (16 inch) laptop. The webpage says that it has thunderbolt 4. So, I wanted to buy a usb c power bank for my laptop in order to extend the battery life as long as possible, while I am on the go. I understand that the laptop comes with a 300w power adapter and the maximum power delivery for thunderbolt 4 is 100w. I was thinking of buying the anker 737 Power Bank (PowerCore III Elite 26K) with 60w pd. I was just wondering if this was a good power bank for my use case or if there is a better one, or if there is a completely different solution. 

ankerpower bank:

https://www.google.ca/aclk?sa=L&ai=DChcSEwjt4cK6lYH3AhUEGa0GHTKPBsEYABAHGgJwdg&ae=2&sig=AOD64_1gvd36X3_fl5dKOOhdS3tOftkouw&ctype=5&q=&ved=2ahUKEwjElLq6lYH3AhX8CTQIHVR6A94Qwg96BAgBEBE&adurl=

 

[Alex Atkin UK]

17 minutes ago, Marcpc said:

Hi. I have recently purchased a Lenovo legion 7i gen 6 intel (16 inch) laptop. The webpage says that it has thunderbolt 4. So, I wanted to buy a usb c power bank for my laptop in order to extend the battery life as long as possible, while I am on the go. I understand that the laptop comes with a 300w power adapter and the maximum power delivery for thunderbolt 4 is 100w. I was thinking of buying the anker 737 Power Bank (PowerCore III Elite 26K) with 60w pd. I was just wondering if this was a good power bank for my use case or if there is a better one, or if there is a completely different solution. 

ankerpower bank:

https://www.google.ca/aclk?sa=L&ai=DChcSEwjt4cK6lYH3AhUEGa0GHTKPBsEYABAHGgJwdg&ae=2&sig=AOD64_1gvd36X3_fl5dKOOhdS3tOftkouw&ctype=5&q=&ved=2ahUKEwjElLq6lYH3AhX8CTQIHVR6A94Qwg96BAgBEBE&adurl=

 

Thunderbolt doesn't mean you can charge through that port, they are entirely different things.

Thunderbolt, charging and USB can all use the same port but they each require dedicated hardware in the laptop to do it.

 

Its highly unlikely any 300W laptop will support charging as you don't want to be in a situation where you are powering the laptop externally and the other alternative would be for say the laptop to throttle down to 65W performance so it CAN charge and run at the same time - it wouldn't exactly be a popular decision.

Though personally I could find that useful, I think it would be really quite hard for the manufacturer to tweak higher performance hardware to throttle down that low.  My gaming laptop already throttles down to "omg this is so bad" performance levels on battery as it is and still runs out in 2 hours desktop use.

[dizmo]

A quick search shows that anything under 65w will only charge when the laptop is turned off. I'd personally look for a 100w charging solution; they're a little more expensive, but I think it'll be far more useful. I've linked a few, as well as the thread on Reddit which might be a useful read to you.

 

https://www.theverge.com/2019/5/1/18410552/laptop-portable-batteries-high-wattage-usb-c-charger

 

https://jgotech.com/products/zseries-100w-pd-26800mah-usb-c-pd-power-bank

 

https://www.newegg.ca/all-nighter-aohi-universal-30000-mah-power-bank/p/39G-019H-00002

 

35 minutes ago, Alex Atkin UK said:

Thunderbolt doesn't mean you can charge through that port, they are entirely different things.

Thunderbolt, charging and USB can all use the same port but they each require dedicated hardware in the laptop to do it.

 

Its highly unlikely any 300W laptop will support charging as you don't want to be in a situation where you are powering the laptop externally and the other alternative would be for say the laptop to throttle down to 65W performance so it CAN charge and run at the same time - it wouldn't exactly be a popular decision.

Though personally I could find that useful, I think it would be really quite hard for the manufacturer to tweak higher performance hardware to throttle down that low.  My gaming laptop already throttles down to "omg this is so bad" performance levels on battery as it is and still runs out in 2 hours desktop use.

I really wish people wouldn't state things when they don't know the answer. If you don't know, just say nothing. Don't state things you think might be true as if they're fact.

[Alex Atkin UK]

4 hours ago, dizmo said:

I really wish people wouldn't state things when they don't know the answer. If you don't know, just say nothing. Don't state things you think might be true as if they're fact.

Turned off has very limited use cases, though fair point, I should have researched more.

[dizmo]

6 hours ago, Alex Atkin UK said:

Turned off has very limited use cases, though fair point, I should have researched more.

That's only under 65w. A 65w or higher battery bank works perfectly fine. 

[Alex Atkin UK]

6 hours ago, dizmo said:

That's only under 65w. A 65w or higher battery bank works perfectly fine. 

Ah so the 300W is for fast charging with the laptop actually consuming less than 100W?  Or does it run in a lower power state from USB-C charging?