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kevin_jarrett
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Posts: 32
Registered: ‎06-04-2015
Location: US
Views: 315
Message 1 of 6

USB-C Laptop Power Bank 14000 mAh 40AL140CWW - worked once?

Hi all, got this power bank (40AL140CWW) for my P1. It is listed as acceptable for the system on the Option Compatibility Matrix (January, 2019). Got it a while back, tested it, worked fine: https://www.reddit.com/r/thinkpad/comments/9uyew4/fieldtesting_the_lenovo_usbc_14000mah_power_bank/

 

Using it today (charged yesterday) ... all four lights on the bank come on when I plug it into my P1, but, the system is behaving differently ... previously, the bank powered the unit and its LEDs went off one by one as the charge decreased; the main battery indicator on the bottom did not move off 95%. This time, the main battery indicator shows a decreasing level of charge, and so far, the bank still has four LEDs illuminated. Even weirder, the "remaining time" at one point seemed to indicate the battery was present (showing 8+ hours remaining) but now, even that has changed, and the system is acting like there is no power bank installed at all (shows 3 hours and 33 min [77%] remaining.) I am using the USB-C power cord that came with the bank.

 

Is it defective?

 

TIA,

 

-kj-

P1: 8850H, FHD, 16gb, 512gb, P2000, IR Camera, Windows 10 Pro
T450s & X201t & M93p, too
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Message 2 of 6

Re: USB-C Laptop Power Bank 14000 mAh 40AL140CWW - worked once?

[Message thread moved to Displays, Options and Accessories for visibility.  AG]



I am a volunteer and neither a Lenovo nor a Microsoft employee.

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kevin_jarrett
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Posts: 32
Registered: ‎06-04-2015
Location: US
Views: 243
Message 3 of 6

Re: USB-C Laptop Power Bank 14000 mAh 40AL140CWW - worked once?

tl;dr - called support, getting it replaced under warranty.
P1: 8850H, FHD, 16gb, 512gb, P2000, IR Camera, Windows 10 Pro
T450s & X201t & M93p, too
kevin_jarrett
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Posts: 32
Registered: ‎06-04-2015
Location: US
Views: 205
Message 4 of 6

Re: USB-C Laptop Power Bank 14000 mAh 40AL140CWW - worked once?

Still waiting for "a supervisor" to contact me about authorizing this return, was supposed to be days ago...just an awful experience so far.

P1: 8850H, FHD, 16gb, 512gb, P2000, IR Camera, Windows 10 Pro
T450s & X201t & M93p, too
kevin_jarrett
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Posts: 32
Registered: ‎06-04-2015
Location: US
Views: 122
Message 5 of 6

Re: USB-C Laptop Power Bank 14000 mAh 40AL140CWW - worked once?

UPDATE: I just recieved, after many weeks, a replacement for this power bank as it had apparently failed. Well, what are the odds the replacement is bad, too? My process:

 

  1. Pack arrived yesterday, charged with my Thinkpad 135w AC adapter, all four lights on the pack illuminated successfully.
  2. Plugged the Thunderbolt cable into the pack and my P1, and can hear the USB connect sound, but, the unit is not receiving power. (It also does not charge the battery, but that is by design, it's intended only to power the unit.)
  3. Reversed the Thunderbolt cable, just for the hell of it, same result ... USB connect sound, no power to the unit.
  4. Plugged my iPhone 6s into the pack via Thunderbolt to Lightning cable ... does not charge.
  5. Plugged my iPhone 6s into the back via USB to Lightning cable ... DOES CHARGE.

 

So by process of elimination the issue appears to be localized to the Thunderbolt port on the pack itself (since I tried two different Thunderbolt cables, and both failed, those can be ruled out.)

 

I've contacted support, we'll see what they say.

 

Meanwhile, looking for other power bank alternatives, suggestions welcome.

 

TIA, kj

P1: 8850H, FHD, 16gb, 512gb, P2000, IR Camera, Windows 10 Pro
T450s & X201t & M93p, too
kevin_jarrett
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Posts: 32
Registered: ‎06-04-2015
Location: US
Views: 84
Message 6 of 6

Re: USB-C Laptop Power Bank 14000 mAh 40AL140CWW - worked once?

Does ANYONE have a WORKING 40AL140CWW power bank that can confirm how it is supposed to operate?

 

I don't need it to CHARGE the P1, just POWER it. 

 

The first one of these I bought did exactly that, exactly once. Now, even with a full charge, nothing happens when I plug it into the P1 other than a  "successful USB Connect" sound in Windows.

 

Have been dealing with Lenovo Support on this since November, my patience is essentially gone at this point, and I have no working power bank.

 

Help?

P1: 8850H, FHD, 16gb, 512gb, P2000, IR Camera, Windows 10 Pro
T450s & X201t & M93p, too

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