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P51 power adapter

P50/P70 and later specific matters only
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charlienyc
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Joined: Mon Mar 26, 2007 9:32 pm
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P51 power adapter

#1 Post by charlienyc » Wed Jan 24, 2018 10:50 am

Hi,
I got my new ThinkPad P51 recently and want a spare power adapter. Ideally it would be either thinner or lighter than the 170W one that came with the laptop, to use for travel. Am I restricted to the same model # or are the other 170W adapters with rectangular tips close enough?

What came with it: 4X20E50574, 45N0371, 45N0372, ADL170NDC2A
I've seen many adapters (on fleabay) that share the same 4X20E50574 but have different part numbers, like 45N0373 and ADL170NLC2A

Taking it a step further, I'm thinking the 135W adapters won't cut it. True?
Cheers
-charlie-
P51 20HHCTO | i7-7700HQ 3.8GHz | 8GB | 256 SSD + 1 TB HD | Win10/64 | 15.6 IPS M-T
R61 8932-CTO | T8100 2.1GHz | 4GB | 250 GB 5400 | Win7/32 | 15.4" WSXGA+
A31 2653-Q5U | P4M 2.0GHz | 1GB | 120GB 5400 | XP Pro | 15" SXGA+

RealBlackStuff
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Re: P51 power adapter

#2 Post by RealBlackStuff » Wed Jan 24, 2018 11:50 am

That P51 is a Workstation/Desktop.
I'd suggest you get a 12.5" X220/X230 or similar for traveling.
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Greg Gebhardt
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Re: P51 power adapter

#3 Post by Greg Gebhardt » Thu Jan 25, 2018 7:29 am

A smaller charge will likely just maintain the battery while in use and would still charge when shut down. I used to use a smaller charger on my W series workstation, a small warning would appear when you plug it in but it worked very well. Loved the smaller charger for traveling.
Greg Gebhardt
Jacksonville, Florida

charlienyc
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Posts: 86
Joined: Mon Mar 26, 2007 9:32 pm
Location: chicago

Re: P51 power adapter

#4 Post by charlienyc » Thu Jan 25, 2018 12:29 pm

Greg Gebhardt wrote:A smaller charge will likely just maintain the battery while in use and would still charge when shut down. I used to use a smaller charger on my W series workstation, a small warning would appear when you plug it in but it worked very well. Loved the smaller charger for traveling.
Thanks Greg! This is what I was hoping for, to use the laptop on battery for a few hours, then leave it charging for a while or overnight on trips. Have you used the 135W then?

Sent from my HTC 10 using Tapatalk

-charlie-
P51 20HHCTO | i7-7700HQ 3.8GHz | 8GB | 256 SSD + 1 TB HD | Win10/64 | 15.6 IPS M-T
R61 8932-CTO | T8100 2.1GHz | 4GB | 250 GB 5400 | Win7/32 | 15.4" WSXGA+
A31 2653-Q5U | P4M 2.0GHz | 1GB | 120GB 5400 | XP Pro | 15" SXGA+

RealBlackStuff
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Re: P51 power adapter

#5 Post by RealBlackStuff » Thu Jan 25, 2018 2:09 pm

charlienyc wrote:
Thu Jan 25, 2018 12:29 pm
Sent from my HTC 10 using Tapatalk
Please read: viewtopic.php?f=61&t=124261

charlienyc
Freshman Member
Posts: 86
Joined: Mon Mar 26, 2007 9:32 pm
Location: chicago

Re: P51 power adapter

#6 Post by charlienyc » Thu Jan 25, 2018 7:38 pm

Yup, got it.
-charlie-
P51 20HHCTO | i7-7700HQ 3.8GHz | 8GB | 256 SSD + 1 TB HD | Win10/64 | 15.6 IPS M-T
R61 8932-CTO | T8100 2.1GHz | 4GB | 250 GB 5400 | Win7/32 | 15.4" WSXGA+
A31 2653-Q5U | P4M 2.0GHz | 1GB | 120GB 5400 | XP Pro | 15" SXGA+

charlienyc
Freshman Member
Posts: 86
Joined: Mon Mar 26, 2007 9:32 pm
Location: chicago

Re: P51 power adapter

#7 Post by charlienyc » Mon Aug 06, 2018 11:46 pm

Just following up in case anyone's curious. I bought a USB 3 dock for this machine (P/N 40A80045US). Now I take away its 45W power adapter with me on trips. It charges the machine when I'm not working and is very lightweight and compact.
-charlie-
P51 20HHCTO | i7-7700HQ 3.8GHz | 8GB | 256 SSD + 1 TB HD | Win10/64 | 15.6 IPS M-T
R61 8932-CTO | T8100 2.1GHz | 4GB | 250 GB 5400 | Win7/32 | 15.4" WSXGA+
A31 2653-Q5U | P4M 2.0GHz | 1GB | 120GB 5400 | XP Pro | 15" SXGA+

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