Apparently your power adapter is important!

[TweakingUser22]

Hi guys,

I have a Lenovo Laptop..

It of course comes with a Lenovo brand power adapter..

I was thinking ahead and bought a no-name brand (Power+) PWR+ as a backup incase..


So I was playing a high-intensive powered game yesterday and noticed my Lenovo Power Adapter was extremely hot! so I thought to myself "hey I can let that cool down and use my other adapter!"

So during the game I unplugged my Lenovo power adapter and swapped it with the PWR+ extra backup adapter shown in picture..

The result was the game still played fine and everything seemed normal.. except the Screen! I use a 32 inch TV as my monitor and I saw like white lines kinda slowly flashing going down the screen when I plug in the backup PWR power adapter..

so what do you think I could do to resolve that? just buy another no-name brand power adapter and just see if it does that also?

What would cause interference with a power adapter to the TV screen??

[Timster]

Your original Lenovo power supply is listed as 6.15 amps Which is probably the specs rated on the laptop you are using.

The PWR+ adapter is rated at 4.5 amps... significantly lower than the intended original power supply.

I would say you are trying to use a power supply that is under rated in amperage and that is causing issues. Stick with the original rated power supply that is intended for that Lenovo laptop.

[TweakingUser22]

Ok yes true, I guess back to Amazon.com for a power adapter that has the correct amps! darnit!

thanks..

I still want a secondary power adapter in case of anything or the original goes out on me.. etc..

[Timster]

It's the voltage needs to be spot on (Between 19v and 20v).

The amps can be no less than what the computer is rated for. The rated amps are always stamped on the bottom of the laptop itself. Be sure to pick up a power adapter that has the rated amperage or greater.

EXAMPLE: If your laptop is rated at 6.15amps you need a power adapter that is at least 6.15amps. Keep in mind that even if the adapter is rated higher than 6.15amps you do not have anything to worry about.

If you are looking at a adapter that is 19.5v and 8.25amps you will still be ok as long as you are at or above the recommended amps that the lapyop is rated at.

Also sometimes when shopping for adapters they show watts not amps. The formula for figuring watts would be {Volts X Amps = Watts}

Hope this helps.

[Britec]

Very Steve Cherubino 

[TweakingUser22]

Wonderful informative answer! thank you..

Yeah I have a feeling most people won't show the amps on Amazon power adapters ha..

I'll be hunting!

thanks.