cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Puttichai
Paper Tape
Posts: 3
Registered: ‎05-20-2016
Location: SG
Views: 801
Message 1 of 4

U41-70: charging but battery percentage never increases

Hi,

 

I have U41-70. The problem is that now my battery is at around 15%. When I charge it, even for many many hours, the battery percentage never increases. The battery gauge says it is charging and the battery status is good. Furthermore, the LED is orange and slowly blinking. Do you have any idea what is happening here?

Retired Support Specialist
Posts: 3,772
Registered: ‎12-24-2015
Location: IN
Views: 783
Message 2 of 4

Re: U41-70: charging but battery percentage never increases

Welcome to the forums Puttichai!

 

I'd imagine that one or more cells have gone bad.

Reset the BIOS to default before you do anything else. 

  1. Unplug AC adapter (remove from notebook).
  2. Remove main battery
  3. Press and hold the power button for 30 seconds (power drain)
  4. Replace main battery
  5. Replace AC adapter (plug into wall then notebook)

 

The fuse is a safety mechanism, which will open under a number of conditions, often in the case when some of the cells in the battery become too different in charge capacity. In a worst case scenario, this would be the result of an internal short, so the fuse opens to prevent the battery from further charging / discharging, and limits the possibility of damage to the system from the battery.  While this can occur at some point in a batteries life, like tires or brakes on your car wearing out.

 

The orange blinking means the battery has between 5% and 20% charge.

 

I would suggest you to visit the nearest authorised Lenovo authorised support for hardware assistance. Below are the battery details:

 

Battery FRU   5B10G78612

Battery FRU   5B10G78610

Battery FRU   5B10G78611

Battery FRU   5B10G78609

 

Let us know how you get on.

Regards,                                                                        

Shashi

 

Tap that Star button below to award a Kudo if I helped.
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"

Puttichai
Paper Tape
Posts: 3
Registered: ‎05-20-2016
Location: SG
Views: 771
Message 3 of 4

Re: U41-70: charging but battery percentage never increases

Hi Shashi,

 

So what solves my problem is power draining (pressing and holding the power button for 30 sec.) The problem might be the fuse as you mentioned.

Now when charging, the battery percentage goes up as usual. Everything seems ok so far.

Thank you so much for your suggestion!

 

Puttichai

Retired Support Specialist
Posts: 3,772
Registered: ‎12-24-2015
Location: IN
Views: 765
Message 4 of 4

Re: U41-70: charging but battery percentage never increases

Great that all goes well. 

Please feel free to utilize our forums at any time.

Cheers!!Smiley Happy

           

Regards,

Shashi

 

Tap that kudos button if I helped 
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! 

Check out current deals!


Shop current deals

Top Kudoed Authors