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How to do when your lenovo fru 42t4542 laptop battery won't charge

1, Please check the hardware at first:

  a, Clean the lenovo fru 42t4542 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 fru 42t4542 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 fru 42t4542 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 fru 42t4542 10.8V,10.8V,6 cell 9 cell laptop batteries

1. original battery for lenovo fru 42t4542, 10.8 voltage, 5200 mAh, 6 cells, Li-ion laptop batteries

Cheap fru 42t4542 10.8V,10.8V,6 cell 9 cell laptop batteries
Click to view more pictures
Product ID: 1002228
Battery Type: Li-ion
Property: original battery [?]
Voltage: 10.8 V
Battery capacity: 5200 mAh (6 cell)
Color: black
Warranty: 9 months

2. original battery for lenovo fru 42t4542, 10.8 voltage, 7800 mAh, 9 cells, Li-ion laptop batteries

Cheap fru 42t4542 10.8V,10.8V,6 cell 9 cell laptop batteries
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Product ID: 1003088
Battery Type: Li-ion
Property: original battery [?]
Voltage: 10.8 V
Battery capacity: 7800 mAh (9 cell)
Color: BLACK
Warranty: 9 months

3. replacement battery for lenovo fru 42t4542, 10.8 voltage, 6600 mAh, 9 cells, Li-ion laptop batteries

Cheap fru 42t4542 10.8V,10.8V,6 cell 9 cell laptop batteries
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Product ID: 1001764
Battery Type: Li-ion
Property: replacement battery [?]
Voltage: 10.8 V
Battery capacity: 6600 mAh (9 cell)
Color: Black
Replace brand: lenovo
Warranty: 12 months

4. replacement battery for lenovo fru 42t4542, 10.8 voltage, 4400 mAh, 6 cells, Li-ion laptop batteries

Cheap fru 42t4542 10.8V,10.8V,6 cell 9 cell laptop batteries
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Product ID: 1001763
Battery Type: Li-ion
Property: replacement battery [?]
Voltage: 10.8 V
Battery capacity: 4400 mAh (6 cell)
Color: Black
Replace brand: lenovo
Warranty: 12 months

Lenovo fru 42t4542 Laptop AC Adapters

lenovo  adapter
Click for more pictures
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 fru 42t4542 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 fru 42t4542 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 fru 42t4542 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 fru 42t4542 laptop batteries can replace the following part number:

LENOVO
FRU 42T4542

fru 42t4542 laptop battery is compatible with the following models :

LENOVO
42T4647
45N1171
ThinkPad Elite X200s
ThinkPad X200 2023
ThinkPad X200 2024
ThinkPad X200 4184
ThinkPad X200 7454
ThinkPad X200 7455
ThinkPad X200 7457
ThinkPad X200 7458
ThinkPad X200 7458-RJ7
ThinkPad X200 7459
ThinkPad X200S
ThinkPad X200s 2046
ThinkPad X200s 2047
ThinkPad X200s 7460
ThinkPad X200s 7462
ThinkPad X200s 7465
ThinkPad X200s 7466
ThinkPad X200s 74663GU
ThinkPad X200s 7469
ThinkPad X200s 74698U
ThinkPad X200s 7469E2U
ThinkPad X200s 7470
ThinkPad X200s SL9400
ThinkPad X200si 7465
ThinkPad X200si 7466
ThinkPad X201-3323
ThinkPad X201i
ThinkPad X201S

Lenovo fru 42t4542 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 fru 42t4542 batteries last?

The lifespan of a fru 42t4542 laptop batteries will vary considerably with how it is used, how it is maintained and charged, temperature, and other factors.

Does lenovo fru 42t4542 batteries self-discharge when not in use?

All batteries, include fru 42t4542 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 fru 42t4542 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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