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How to do when your lenovo 40y678 laptop battery won't charge

1, Please check the hardware at first:

  a, Clean the lenovo 40y678 battery contacts. Try charging the laptop battery with the power off. Some laptops draw a lot of power -- so much so that they can't efficiently charge the battery and run demanding tasks at the same time. If the battery doesn't seem to be getting fully charged, shut down the laptop entirely and see how it goes.

  b, Try a deep charge. If the lenovo 40y678 battery is in a bad state, you might be able to bring it back to life with a deep charge cycle. First, make sure it's complete discharged by running the laptop with the battery installed (and the AC adapter removed) until the laptop completely dies. Then charge the laptop overnight.

  c, If your original old battery still charges and discharges but your new replacement lenovo 40y678 battery will not, the new battery may have run to 0% or it may be a defective unit. This may be an indication that you need to replace your AC Adapter. It is more difficult to charge a new battery than it is to charge an older "broken in" battery. If your AC adapter is not outputting the correct amount of power you can run your computer, and charge an old battery, but you may be unable to charge a brand new battery.

If neither battery will recharge, you are most likely experiencing a failure in the laptop charge system (AC adapter, charge port, or motherboard charge circuit).

2, Configuring and upgrading software:

  a, Make sure you're on the latest BIOS revision for your laptop. Windows system, you could also try a repair install and rule out a corrupt installation.

  b, Have a look at your power settings, open up your control panel, and head into the Power Options.
There are several settings in here, take a quick glance around to make sure that nothing looks out of place. The particular one to look out for is the setting that causes your laptop to shut down if your battery percentage drops to a certain low threshold.

  c, Update your drivers, open up the device manager, and under Batteries you'll find a number of entries.
There should usually be three, one for the battery itself, one for the charger and a third called 'Microsoft ACPI Compliant Control Method Battery'. Right click on all of these entries head into properties, then into the driver tab and find the 'Update Driver' button (This may also be found by just right clicking the entry and hitting 'Update driver software'). Once you've done this, restart your laptop and try plugging the charger in again.

If you try all of these troubleshooting steps and your battery is still not working properly, it's time to get a new battery.

Cheap 40y678 10.8V,11.1V,3 cell 6 cell laptop batteries

1. original battery for lenovo 40y678, 10.8 voltage, 2900 mAh, 3 cells, Li-Polymer laptop batteries

Cheap 40y678 10.8V,11.1V,3 cell 6 cell laptop batteries
Click to view more pictures
Product ID: 1003010
Battery Type: Li-Polymer
Property: original battery [?]
Voltage: 10.8 V
Battery capacity: 2900 mAh (3 cell)
Color: black
Warranty: 9 months

2. replacement battery for lenovo 40y678, 11.1 voltage, 3600 mAh, 6 cells, Li-ion laptop batteries

Cheap 40y678 10.8V,11.1V,3 cell 6 cell laptop batteries
Click to view more pictures
Product ID: 1002294
Battery Type: Li-ion
Property: replacement battery [?]
Voltage: 11.1 V
Battery capacity: 3600 mAh (6 cell)
Color: Black
Replace brand: lenovo
Warranty: 12 months

Lenovo 40y678 Laptop AC Adapters

lenovo  adapter
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Product ID: 1061201
Input: AC 100~240V 50~60Hz
Output Voltage: 20V
Output Current: DC 4.5A
Power: 90W
Connector: 7.9mm*5.5m
Property: original [?]
Warranty: 12 months
LENOVO 40Y7700 adapter

Lenovo 40y678 Laptop AC Adapters

lenovo  adapter
Click for more pictures
Product ID: 1061200
Input: AC 100~240V 50~60Hz
Output Voltage: 20V
Output Current: DC 3.25A
Power: 65W
Connector: 7.9mm*5.5mm
Property: original [?]
Warranty: 12 months
LENOVO PA-1650-72 adapter

Lenovo 40y678 Laptop AC Adapters

lenovo  adapter
Click for more pictures
Product ID: 1061026
Input: AC 100~240V 50~60Hz
Output Voltage: 20V
Output Current: DC 4.500A
Power: 90W
Connector: 7.9mm*5.5mm
Property: replacement [?]
Warranty: 18 months
LENOVO 40Y7700 adapter

Lenovo 40y678 Laptop AC Adapters

lenovo  adapter
Click for more pictures
Product ID: 1061065
Input: AC 100~240V 50~60Hz
Output Voltage: 20V
Output Current: DC 3.250A
Power: 65W
Connector: 7.9mm*5.5mm
Property: replacement [?]
Warranty: 18 months
LENOVO 40Y7700 adapter

Lenovo 40y678 laptop batteries can replace the following part number:

LENOVO

40y678 laptop battery is compatible with the following models :

LENOVO
ThinkPad T400s 2801
ThinkPad T400s 2808
ThinkPad T400s 2809
ThinkPad T400s 281522M
ThinkPad T400s 28153FM
ThinkPad T400s 2815CTO
ThinkPad T400s 2815RP1
ThinkPad T400s 2815RQ5
ThinkPad T400s 2815RQ7
ThinkPad T400s 2815RS8
ThinkPad T400s 2815RW2
ThinkPad T400s 2823
ThinkPad T400s 2824
ThinkPad T400s 2825
THINKPAD T400S-0815-XXX
THINKPAD T400S-2801-XXX
THINKPAD T400S-2808-XXX
THINKPAD T400S-2809-XXX
THINKPAD T400S-2823-XXX
THINKPAD T400S-2824-XXX
THINKPAD T400S-2825-XXX
THINKPAD T400S-TODOS OS
ThinkPad T410s 2901CTO
ThinkPad T410s 2904A11
ThinkPad T410s 2904A13
ThinkPad T410s 2904C5M
ThinkPad T410s 2904CYM
ThinkPad T410s 2904HEM
ThinkPad T410s 2904HFM
ThinkPad T410s 2904HGM
ThinkPad T410s 2904HHM
ThinkPad T410s 29122AU
ThinkPad T410s 29122EM
ThinkPad T410s 29122GM
ThinkPad T410s 29122JM
ThinkPad T410s 29122KM
ThinkPad T410s 29123RM
ThinkPad T410s 29123XM
ThinkPad T410s 29123ZM
ThinkPad T410s 2912BB6
ThinkPad T410s 2912C23
ThinkPad T410s 2912CTO
ThinkPad T410s 2912PS7
ThinkPad T410s 2912PU5
ThinkPad T410s 2912R66
ThinkPad T410s 2912R78
ThinkPad T410s 2912RB7
ThinkPad T410s 2912RM9
ThinkPad T410s 2912RP9
ThinkPad T410s 2912RT4
ThinkPad T410s 2912RT5
ThinkPad T410s 2912RV2
ThinkPad T410s 2912RV3
ThinkPad T410s 2912RV9
ThinkPad T410s 2912RY7
ThinkPad T410s 2912RZ8
ThinkPad T410s 2912WAU
ThinkPad T410s 292425M
ThinkPad T410s 2924A54
ThinkPad T410s 2924A83
ThinkPad T410s 2924AH2
ThinkPad T410s 2924AT2
ThinkPad T410s 2924B65
ThinkPad T410s 2924CQ2
ThinkPad T410s 2924D19
ThinkPad T410s 2924DK3
ThinkPad T410s 2924E52
ThinkPad T410s 2924WAU
THINKPAD T410s(2926)
THINKPAD T410s(2928)
THINKPAD T410s(NUK3)
ThinkPad T410s-2901
ThinkPad T410s-2904
ThinkPad T410s-2907
ThinkPad T410s-2912
ThinkPad T410s-2924
THINKPAD T410S-TODOS OS
THINKPAD T410SI
ThinkPad T410si 2904GHM
THINKPAD T410SI-2494-XXX
THINKPAD T410SI-2901-XXX
THINKPAD T410SI-2904-XXX
THINKPAD T410SI-2907-XXX
THINKPAD T410SI-2912-XXX
THINKPAD T410SI-2924-XXX
THINKPAD T410SI-2926-XXX
THINKPAD T410SI-2928-XXX
THINKPAD T410SI-TODOS OS

Lenovo 40y678 laptop battery and other products you purchased from us are guaranteed!

  We warrant that the products sold in our website, other than explicitly stated, are 100% brand new and free from defects in material and workmanship.

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How long will my lenovo 40y678 batteries last?

The lifespan of a 40y678 laptop batteries will vary considerably with how it is used, how it is maintained and charged, temperature, and other factors.

Does lenovo 40y678 batteries self-discharge when not in use?

All batteries, include 40y678 laptop batteries, regardless of their chemistry, self-discharge. The rate of self-discharge depends both on the type of laptop battery and the storage temperature the batteries are exposed to. However, for a good estimate, wet flooded deep cycle laptop batteries self-discharge approximately 4% per week at 80°F.

Disclaimer:
The 40y678 laptop batteries and other products supplied by our Company are [replacement for] sold for use with certain product manufacturers, and any reference to products or trademarks of such companies is purely for the purpose of identifying the manufacturers with which our products [are replacement for] may be used. Our Company and this Web site are neither affiliated with, authorized by, licensed by, distributors for, nor related in any way to these manufacturers, nor are the products offered for sale through our web site manufactured by or sold with the authorization of the manufacturers with which our products [are replacement for] may be used.

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