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rmhoon
Paper Tape
Posts: 3
Registered: ‎11-17-2019
Location: US
Views: 202
Message 1 of 6

Lenovo Z710 strange charging issue...help please

My Lenovo Ideapad Z-710 has a strange battery charging issue. When the laptop is turned off and plugged in, the battery charges to 100%. When I power the laptop on, the indicator light shows it is still charging, but it actually starts running off the battery and of course the battery starts discharging. When the battery runs all the way down, the laptop shuts off. I have replaced both the charger and the battery with the same results. 

Plugged in with battery in place and turned on: Laptop will operate as long as the battery has some charge and shuts off when battery is depleated.

Plugged in with battery removed and turned on: Laptop will run all the time.

Plugged in with battery in place and turned off: Battery charges to 100%

Unplugged with battery in place and turned on: Laptop runs normally until battery is depleated

Any ideas on what could cause this. I read somewhere that it has a battery switch board in it. 

 

Support Specialist
Posts: 190
Registered: ‎11-04-2019
Location: US
Views: 165
Message 2 of 6

Re: Lenovo Z710 strange charging issue...help please

 

Welcome to the Community Forums @rmhoon! Glad to have you here.

 

Would just like to get additional details from you for this to be sorted out properly:

 

  • Do you still see the charging icon/symbol on the Z710 laptop's screen when you plug in the charger?
  • Are you getting any on screen message(s) when you connected the charger?

You can perform a power drain on your device by pressing/holding the Power button for at least 10 seconds.

After that, try loading BIOS settings into defaults, here's how:

 

  • From an off state, press the Novo button that's next to Power button to access BIOS menu.
  • Inside BIOS, press F9 on your keyboard to load it to defaults.
  • Once done, press F10 on the keyboard to save changes & exit.

Once loaded to defaults, update your laptop's battery driver, you can do that by:

 

 

  • Right clicking on Start/Windows symbol and selecting Device Manager
  • Under Device Manager, look for Batteries option and right-click Microsoft ACPI-Compliant Control Method Battery again. 
  • Select the Update Driver and restart device.

Try using the laptop again once you're done with those steps and check on how it will go through.

 

Regards.



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rmhoon
Paper Tape
Posts: 3
Registered: ‎11-17-2019
Location: US
Views: 157
Message 3 of 6

Re: Lenovo Z710 strange charging issue...help please

The charging icon when the battery is in and it is plugged in shows the percent of the battery life and says plugged in. I am not getting any on screen messages when the charger is plugged in. When I unplug the charger the screen gets a little dimmer and when I plug the charger

back in the screen brightens back up.

 

I had already done a power drain and did a bios update. I also checked for battery updates. 

 

It still is doing the same thing. 

 

I certainly appreciate your assistance on this!

Support Specialist
Posts: 190
Registered: ‎11-04-2019
Location: US
Views: 136
Message 4 of 6

Re: Lenovo Z710 strange charging issue...help please

 

Hello again @rmhoon!

 

Since you've mentioned that the laptop's display also get dim/dark when you removed the adapter, you can also try removing the adapter from the laptop again and may use a pen light to see if there's a faint image that'll reflect on the laptop's display. And also do this step when inside BIOS menu.

 

If you're able to see an image after doing this step, this means that electricity signal that the laptop's screen is getting is not enough or sufficient to power on the screen itself. Try to check if there's also an available Windows update on your device.

 

With that, this could also mean that this maybe a hardware issue, specifically with the mother/power board even if you're already using a new charger/batter and may require repairs for it to function properly again. It seems that the power or electricity isn't distributed properly on the device that is why the it is not functioning properly.

 

You can check this link to see the list of Lenovo certified repair partners that can assist or help you in repairing the device.

 

Thanks!



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rmhoon
Paper Tape
Posts: 3
Registered: ‎11-17-2019
Location: US
Views: 126
Message 5 of 6

Re: Lenovo Z710 strange charging issue...help please

I'm sorry, I didn't mean to imply that the screen went dark. It just gets a little dimmer like it is switching between battery saving mode and normal mode. The screen is very viewable in either case.

I do agree that it is probably a hardware issue. I'm just not sure if the power board controls the switching between the charger and battery or if there is a separate battery switching circuit board.

I am capable of changing out any of the boards, but would like to figure out which board is the culprit...power supply board, main board, ot battery switching board if there is one. Also if these parts are even still available.

Thanks, Ron

Support Specialist
Posts: 190
Registered: ‎11-04-2019
Location: US
Views: 117
Message 6 of 6

Re: Lenovo Z710 strange charging issue...help please

 

Hello @rmhoon!

 

Please can check page 59, item 1 of your device's hardware maintenance manual to see the steps on how you can lift/dissamble the power board off your device.

 

Just to give you a heads up, it may also be an issue with the system board as a point of failure aside from the power board.

 

You may also use this link to see the list of parts that can be used for your device and may sign in to this site to check for their availability. 

 

You can also provide the part number of each part(s) to local stores to check if they do have it in stock.

 

Thanks!



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If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.

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