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48 Posts

04-12-2013

Sweden

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Re: W530 Power Adapters, 90W vs 135W Vs 170W

2013-05-01, 12:03 PM

The huge brick that comes with the W530 must be a bad joke!

 

Would this one work?:

http://www.amazon.com/gp/product/B003ZMB19E?ie=UTF8&ref_=sr_1_1&s=electronics&qid=1287690548&sr=8-1&linkCode=shr&camp=213733&creative=393173&tag=wwwreallyawes-20

 

Which is the smallest power-adapter working with the W530?

 

Moderator Note; subject edited; post merged in. Was; Smallest power-adapter working with the W530?

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48 Posts

04-12-2013

Sweden

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  • Message 42 of 144

Re: W530 Power Adapters, 90W vs 135W Vs 170W

2013-05-05, 10:33 AM

Really no options out there?

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2483 Posts

04-08-2011

United States of America

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Re: W530 Power Adapters, 90W vs 135W Vs 170W

2013-05-05, 14:34 PM

wrote:

Really no options out there?


This queston has been asked and answered hundreds of times since the W510 came out with the 135W brick.

 

You can use a 90W charger with the W530, but only when it is turned off.  The 135W charger will work when the machine is on or off.

 

Some forum members figured out a way to get around the 90W limitation with a wiring modification.

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31 Posts

07-24-2012

Poland

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Re: W530 Power Adapters, 90W vs 135W Vs 170W

2013-06-06, 18:01 PM
Yes its quite easy, You must cut plug gum open and attach 1,5 kohm resistor betwen Ground (-) and center pin. Then Your laptop will recognize 170 W adapter plugged in.
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277 Posts

08-01-2008

United States of America

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Re: W530 Power Adapters, 90W vs 135W Vs 170W

2013-06-07, 21:47 PM

I write to salute Dragon-fly for his unflagging patience with those that were completely without experience with such a mod but wanted him to REWRITE his instructions "just one more time because I can't quite figure it out...". I tell people that Lenovo machines aren't the top of the heap any more but that the user community really is so.

 

I bought a w520 in October 2011 and have spent a lot of time here to learn and adapt my machine... Thanks to dragon-fly AND everyone else.

 

jonathan7007

 

 

4276-37U -- W520. Keeping an X61t just in case.
First laptop in my house was a luggable Osborne! Now that was a cool computer. (...for its time!)
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199 Posts

04-27-2009

Canada

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Re: W530 Power Adapters, 90W vs 135W Vs 170W

2013-06-07, 23:51 PM

?

 

^ i thought for a second i should just leave that alone but heres the rest.

 

Didnt quite understand your post other than a thank you and a "rewrite" instructions

 

basically you have three connections. outermost ring is Ground (0V), inner ring is Positive (+20V) and the centerpin is "detection"

 

What kadzbi said isnt totally incorrect but is overkill and harder to achieve. when Outerring (Ground) is connected (shorted) to centerpin (detection) it tells the laptop the power brick attached is 135W. this is all we need for the laptop to charge and function fully. this is what my instructions were. this must be done at the end the laptop is connected to.

 

what kadzbi said was to put a resistor between Outerring (Ground) and centerpin (detection) - this tells the laptop it has a 170W adapter attached. this will also work, but if the laptop ever decides to go use all the power it can, it will think it has up to 170W instead of up to 135W. now, in both cases, we're only feeding the laptop with a 90W adapter so either the adapter burns (if you have a cheap made in china adapter - i burnt one) or it shuts itself off properly. If it tries to suck up 170W, well, its just going to burn harder, faster. :Grinn:

 

What i did in my converter plug - i still have one i can build, version 3, - is i shorted Outerring (ground) to centerpin (detection) and as its just a small stubby adapter i dont have insnane amounts of extra wire, and less resistance, etc etc. so it works well. been using my version 3 ever since i sold my version one off - which was actually beefy-er in wire gauge than this version 3. (thus version 1 was uglyer but better in a sense)

 

Hope that helps.

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277 Posts

08-01-2008

United States of America

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Re: W530 Power Adapters, 90W vs 135W Vs 170W

2013-06-08, 1:46 AM

Dragon-Fly,

My post was a respectful thank you that I don't think you had received from all the respondents and lurkers who should, like me, marvel at your gracious patience and willingness to contribute. I myself would love to have an easy solution but know myself well enough not to try this. I use a 90W for convenience when I close the w520 or out it to sleep.

 

I was not critisizing your instructions in any way or asking for further clarification. I am thanking you for being among other generous people here.

 

As they say here in Hawaii, Mahalo nui.

4276-37U -- W520. Keeping an X61t just in case.
First laptop in my house was a luggable Osborne! Now that was a cool computer. (...for its time!)
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31 Posts

07-24-2012

Poland

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  • Message 48 of 144

Re: W530 Power Adapters, 90W vs 135W Vs 170W

2013-06-08, 11:56 AM

Yes, use 90W adapter wise, if You are charging battery at the same time and use 100% cpu in your W530 on 90W power supply then surelly sth has to burn/shutdown. BUT when a battery is not charging (is charged) and you are web browsing or editing office documents 90W powe supply is only a little bit warm. As usually wisedome is needed.

 

So You are saying that short circuit center pin to ground will make W530 use power supply as 135W which will operate without using battery?

Default 90W will charge battery when laptop is off, but will not work on AC power, thats why we need to modify the plug. On 135 W power supply it will use AC?

Im asking becouse its easier to short circut than put resistor :)

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199 Posts

04-27-2009

Canada

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Re: W530 Power Adapters, 90W vs 135W Vs 170W

2013-06-08, 14:07 PM

 

Link to picture

 

correct. im using my 90W to 135w mod cable and am using 100% Intel GPU and 100% K2000M Gpu on 90W Brick not charging battery. last 90W i burned i was charging the battery and doing all of that. IF 100% CPU + 100% Intel GPU + K2000m GPU, it can use up to 104W, im on an i7 3720QM FYI. (battery not being charged)

 

Moderator note; picture(s) totalling >50K converted to link(s) Forum Rules

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31 Posts

07-24-2012

Poland

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Re: W530 Power Adapters, 90W vs 135W Vs 170W

2013-06-09, 4:31 AM

Your adapter looks really nice, I couldn`t find plug with wire connected to center pin (mine has 2 wires +- only) so I had to cut the plug, it doesnt look so nice, but also works.

Where did You but those plugs?

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