Jump to content

Compatibility of USB Type-C laptop power adapter.

Segu
By Segu
in Power Supplies
 Share
Go to solution Solved by Stefan Payne,
6 hours ago, Segu said:

Guys,

I have this Lenovo 20V - 2A laptop adapter, I would like to know if it's ok to use with my Razer Blade Stealth?

Razer Blade Stealth (RBS) came with 20V - 2.25A power supply.

 

No, for one simple reason: 250mA difference.

You must never ever use a power adapter that is rated less than the original for the device.

 

If the Lenovo was rated 2.5A then there wouldn't be a problem....

 

 

 

Posted

Guys,

I have this Lenovo 20V - 2A laptop adapter, I would like to know if it's ok to use with my Razer Blade Stealth?

Razer Blade Stealth (RBS) came with 20V - 2.25A power supply.

 

If yes I would like to know how much leeway we have? Can I go higher? or much lower?

I like new USB Type-C standard but using those without frying my device is tricky.

I'm completely useless when comes to this kind of stuff.

Cheers.

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

Like you said, the new type-c with PD is a bit tricky. Id said don't risk it. Most manufacturers make their chargers specifically for their devices and their devices only. That being said, try getting some aftermarket charger that support many standards. For example this:
http://www.tronsmart.com/products/tronsmart-w2dt-48w-usb-pd-wall-charger-with-quick-charge-3-0

Core i7 7700k Kabylake stock + Kraken x52 | ASUS Z170-A | 8GB DDR4 2133MHz HyperX | ASUS GeForce GTX 1060 STRIX 6GB | 250GB SSD Samsung 850 EVO + 2TB HDD WD RE4 | Seasonic X-Series 650w | Corsair 460x RGB  | Win 10 Pro 64 bit | Corsair M65 PRO RGB Mouse | Corsair K70 RGB RapidFire

 

Link to comment
Share on other sites
Link to post
Share on other sites
Posted
  • Solution
6 hours ago, Segu said:

Guys,

I have this Lenovo 20V - 2A laptop adapter, I would like to know if it's ok to use with my Razer Blade Stealth?

Razer Blade Stealth (RBS) came with 20V - 2.25A power supply.

 

No, for one simple reason: 250mA difference.

You must never ever use a power adapter that is rated less than the original for the device.

 

If the Lenovo was rated 2.5A then there wouldn't be a problem....

 

 

 

"Hell is full of good meanings, but Heaven is full of good works"

Link to comment
Share on other sites
Link to post
Share on other sites
Posted
  • Author
11 hours ago, Stefan Payne said:

 

No, for one simple reason: 250mA difference.

You must never ever use a power adapter that is rated less than the original for the device.

 

If the Lenovo was rated 2.5A then there wouldn't be a problem....

Then what would be the highest I can go?

Would it be ok to use 87W or Higher rated charger for bigger laptops?

Link to comment
Share on other sites
Link to post
Share on other sites
Posted
48 minutes ago, Segu said:

Then what would be the highest I can go?

Would it be ok to use 87W or Higher rated charger for bigger laptops?

Yes, the spec of the Charger has to be equal or higher than the device to charge.

 

A 87W one seems reasonable...

"Hell is full of good meanings, but Heaven is full of good works"

Link to comment
Share on other sites
Link to post
Share on other sites
Posted
  • Author
6 hours ago, Stefan Payne said:

Yes, the spec of the Charger has to be equal or higher than the device to charge.

 

A 87W one seems reasonable...

Thanks a bunch. I will do that.

For everyone else I will try that charger and post it here for future reference.

Link to comment
Share on other sites
Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing Power Supplies

×