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T440s 72Wh Battery will not charge 48Wh will charge?

2019-01-31, 20:54 PM

I have a 12 GB i7 t440s. All functions are normal, dirvers and bios updated.

The 24(Len 68 ) and also 48 ( Len 68+ )Wh batteries will both charge without trouble.

 I also have a fewof the  72 Wh (68+) odd that the 48 and 72 have the same reference (68+?) battery as well.

PROBLEM: all 3 72Wh batteries will not charge on this device? they are fitting properly and proper spec for this laptop.

 The 72 is not charging although recognized in the Lenovo Diagnostics software -battery diagnostic?

Machine Type Model: 20ARS1R703
 
Is this related to the Power supply? I think i am currently using a 65w Lenovo Original  with the flat yellow tip.
What else can i try?
 I would really like these extended batteries to work. They are rated as a specified option for this T440s device.Both sizes are typ 68+ and they fit this generation of T440 models?
 
Not recognized- 68+  72Wh :  These will not Recognize in the Laptop?
Batt 1: FRU - 45N1737  Rating MIN. 6080mAh   ( 2013.12 SKU )
Batt 2: FRU - 45N1738  Rating MIN. 6040mAh  ( 2014 08 SKU )
Batt 3: FRU - 45N1737  Rating MIN. 6080mAh  ( 2013 .12 SKU )
 
Recognized 68+  48 Wh:   THESE CHARGE AND WORK FINE in the PC
Batt 4: FRU - 45N1767Rating MIN 3930 mAh  ( 2017.03 SKU )
Batt 5: FRU - 45N1735 Rating MIN 4100mAh  ( 2014.02 SKU )
 
Please help?
 
 
 
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11382 Posts

01-02-2010

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Re: T440s 72Wh Battery will not charge 48Wh will charge?

2019-01-31, 21:28 PM

Are you sure these are real, OEM batteries or could they be aftermarket?  A lot of the aftermarket batteries are junk, and there are a lot of fakes.


Rich


I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo.
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Re: T440s 72Wh Battery will not charge 48Wh will charge?

2019-02-01, 14:03 PM

I am fairly certain these are not Fake batteries.

is there any way to validate the battery?

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10 Posts

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Re: T440s 72Wh Battery will not charge 48Wh will charge?

2019-02-01, 14:06 PM

UPDATE POST: my error - battery 3 ( Bottom of Pic is a Charging working 48 Wh 

No problem with that cell...

20 2 pieces are not recognized on the PC

 

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Re: T440s 72Wh Battery will not charge 48Wh will charge?

2019-02-01, 14:11 PM

UPDATE PIC all 3 72 Wh Batteries.

I cannot tell how to check for Genuine product?

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Re: T440s 72Wh Battery will not charge 48Wh will charge?

2019-02-01, 17:14 PM

Have these been used normally for the last 4 - 5 years (based on manufacture date)?  Stored in a closet?  


Rich


I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo.
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10 Posts

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  • Message 7 of 7

Re: T440s 72Wh Battery will not charge 48Wh will charge?

2019-02-07, 2:36 AM
not sure- why?
these are all bulk off lease options..
.
I have many (8+)of the 24 and 48 wHr-
all of which are low charge cycles ( less than 50 cycles ) and still have 90+ % charge capacity when running the diagnostics.

I believe my supplier is reliable and that the items are all genuine

I also found out from Lenovo support the AC charger is important too.
I only had the std 45 w

I now picked up a 90 w adapter but it still wont recognize or charge on the device?
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