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DSchana
What's DOS?
Posts: 1
Registered: ‎09-11-2015
Location: Canada
Views: 834
Message 1 of 2

Y40 - Battery life only last 30 min

My Lenovo y40 is only about 6 months old and the battery only last 30 minutes after full charge. It needs to stay on charge all of the time. I have tried installing new energy manager drivers. What do I do?

 

 

 

Mod's Edit: System model added to front of Subject line to improve visibility / clarity

 

 

 

Former Employee
Posts: 1,664
Registered: ‎09-16-2014
Location: US
Views: 582
Message 2 of 2

Re: Y40 - Battery life only last 30 min

In response to customer reports of unexpected battery gauge behavior on Y40-70 and Y40-80 laptops, Lenovo determined the battery gauge software is performing as expected. The unusual gauge results being reported are a reflection of the battery reaching end of life.

 

Lenovo has released a Service TIP to assist customers with obtaining battery replacements under warranty, or if out of warranty, to find a replacement battery from Lenovo-approved vendors. The Service TIP can be found here: https://support.lenovo.com/us/en/solutions/sf16-I0023

 

The part numbers for Y40-70/80 batteries are:

Y40 SP/A L13M4P01 7.4V48Wh 4cell bty (Y40-70/Y40-80) 121500248

Y40 LG L13L4P01 7.4V48Wh 4cell bty (Y40-70/Y40-80) 121500249 substitute part 121500251

Y40 CP/C L13C4P01 7.4V48Wh 4cell bty (Y40-70/Y40-80) 121500259 substitute part 121500251

 

To determine which battery came with your Y40 notebook, instructions for removing the bottom cover can be found in the Hardware Maintenance Manual pdf here. An alternative to opening your system (which does not void warranty) is to search for batteries using the model/product number located on the bottom cover.

 

Thank you,

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