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Cheap 42t4431 20V,90W laptop ac adapters

1. replacement adapter for lenovo 42t4431, 20V, 4.500A, 90W, laptop ac adapters

Cheap 42t4431 20V,90W laptop ac adapters
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Product ID: 1061026
Input: AC 100~240V 50~60Hz
Output Voltage: 20V
Output Current: DC 4.5A
Power: 90W
Connector: 7.9mm*5.5mm
Property: replacement [?]
Replace brand: lenovo
Warranty: 18 months

Relevant lenovo Laptop Batteries

lenovo battery
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Product ID: 1001317
Battery Type: Li-ion
Property: replacement [?]
Voltage: 10.8 V
Battery capacity: 6600 mAh
Color: black
Warranty: 12 months
lenovo battery

Relevant lenovo Laptop Batteries

lenovo battery
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Product ID: 1002229
Battery Type: Li-ion
Property: original [?]
Voltage: 11.1 V
Battery capacity: 8400 mAh
Color: black
Warranty: 9 months
lenovo battery

Relevant lenovo Laptop Batteries

lenovo battery
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Product ID: 1002013
Battery Type: Li-ion
Property: original [?]
Voltage: 10.8 V
Battery capacity: 5200 mAh
Color: Black
Warranty: 9 months
lenovo battery

Relevant lenovo Laptop Batteries

lenovo battery
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Product ID: 1002593
Battery Type: Li-ion
Property: original [?]
Voltage: 14.4 V
Battery capacity: 2200 mAh
Color: Black
Warranty: 9 months
lenovo battery

Relevant lenovo Laptop Batteries

lenovo battery
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Product ID: 1001769
Battery Type: Li-ion
Property: replacement [?]
Voltage: 10.8 V
Battery capacity: 6600 mAh
Color: Black
Warranty: 12 months
lenovo battery

Relevant lenovo Laptop Batteries

lenovo battery
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Product ID: 1001616
Battery Type: Li-ion
Property: replacement [?]
Voltage: 14.4 V
Battery capacity: 4000 mAh
Color: black
Warranty: 12 months
lenovo battery

Relevant lenovo Laptop Batteries

lenovo battery
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Product ID: 1001318
Battery Type: Li-ion
Property: replacement [?]
Voltage: 10.8 V
Battery capacity: 4400 mAh
Color: black
Warranty: 12 months
lenovo battery

Relevant lenovo Laptop Batteries

lenovo battery
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Product ID: 1002594
Battery Type: Li-ion
Property: replacement [?]
Voltage: 11.1 V
Battery capacity: 4400 mAh
Color: Black
Warranty: 12 months
lenovo battery

Relevant lenovo Laptop Batteries

lenovo battery
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Product ID: 1001733
Battery Type: Li-ion
Property: replacement [?]
Voltage: 14.4 V
Battery capacity: 2200 mAh
Color: Black
Warranty: 12 months
lenovo battery

Relevant lenovo Laptop Batteries

lenovo battery
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Product ID: 1002303
Battery Type: Li-ion
Property: original [?]
Voltage: 11.1 V
Battery capacity: 5200 mAh
Color: Black
Warranty: 9 months
lenovo battery

Lenovo 42t4431 laptop ac adapters can replace the following part number:

LENOVO
42T4431

42t4431 laptop ac adapters is compatible with the following models :

lenovo-40y7700
IBM
ThinkPad R60 0656
ThinkPad R60 0657
ThinkPad R60 0658
ThinkPad R60 0659
ThinkPad R60 9444
ThinkPad R60 9445
ThinkPad R60 9446
ThinkPad R60 9447
ThinkPad R60 9455
ThinkPad R60 9456
ThinkPad R60 9457
ThinkPad R60 9458
ThinkPad R60 9459
ThinkPad R60 9460
ThinkPad R60 9461
ThinkPad R60 9462
ThinkPad R60 9463
ThinkPad R60 9464
ThinkPad R60 Series
ThinkPad R60e 0656
ThinkPad R60e 0657
ThinkPad R60e 0658
ThinkPad R60e 0659
ThinkPad R60e 9444
ThinkPad R60e 9445
ThinkPad R60e 9446
ThinkPad R60e 9447
ThinkPad R60e 9455
ThinkPad R60e 9456
ThinkPad R60e 9457
ThinkPad R60e 9458
ThinkPad R60e 9459
ThinkPad R60e 9460
ThinkPad R60e 9461
ThinkPad R60e 9462
ThinkPad R60e 9463
ThinkPad R60e 9464
ThinkPad R60e Series
LENOVO
THINKPAD L421-7854-XXX
THINKPAD L421-7856-XXX
THINKPAD L421-TODOS OS
THINKPAD L430-2464-XXX
THINKPAD L430-2465-XXX
THINKPAD L430-2466-XXX
THINKPAD L430-2468-XXX
THINKPAD L430-2469-XXX
THINKPAD L510
THINKPAD L510-2873-XXX
THINKPAD L510-5072-XXX
THINKPAD L510-TODOS OS
THINKPAD L512
THINKPAD L512-2550-XXX
THINKPAD L512-2597-XXX
THINKPAD L512-2598-XXX
THINKPAD L512-2599-XXX
THINKPAD L512-4444-XXX
THINKPAD L512-4447-XXX
THINKPAD L512-TODOS OS
THINKPAD L520-5010-XXX
THINKPAD L520-5015-XXX
THINKPAD L520-5016-XXX
THINKPAD L520-5017-XXX
THINKPAD L520-5019-XXX
THINKPAD L520-7859-XXX
THINKPAD L520-7860-XXX
THINKPAD L520-TODOS OS
THINKPAD L530-2475-XXX
THINKPAD L530-2478-XXX
THINKPAD L530-2479-XXX
THINKPAD L530-2481-XXX
THINKPAD L530-2485-XXX
Thinkpad R400
ThinkPad R400 7443
Thinkpad R400 Series
THINKPAD R400-2782-XXX
THINKPAD R400-2783-XXX
THINKPAD R400-2784-XXX
THINKPAD R400-2786-XXX
THINKPAD R400-2787-XXX
THINKPAD R400-2788-XXX
THINKPAD R400-2789-XXX
THINKPAD R400-7438-XXX
THINKPAD R400-7439-XXX
THINKPAD R400-7440-XXX
THINKPAD R400-7443-XXX
THINKPAD R400-7445-XXX
THINKPAD R400-7446-XXX
THINKPAD R400-7447-XXX
THINKPAD R400-TODOS OS
Thinkpad R500
THINKPAD R500-2712-XXX
THINKPAD R500-2713-XXX
THINKPAD R500-2714-XXX
THINKPAD R500-2716-XXX
THINKPAD R500-2717-XXX
THINKPAD R500-2718-XXX
THINKPAD R500-2719-XXX
THINKPAD R500-2720-XXX
THINKPAD R500-2731-XXX
THINKPAD R500-2732-XXX
THINKPAD R500-2733-XXX
THINKPAD R500-2734-XXX
THINKPAD R500-2735-XXX
THINKPAD R500-2736-XXX
THINKPAD R500-2737-XXX
THINKPAD R500-TODOS OS
THINKPAD R60-9444-XXX
THINKPAD R60-9445-XXX
THINKPAD R60-9446-XXX
THINKPAD R60-9447-XXX
THINKPAD R60-9455-XXX
THINKPAD R60-9456-XXX
THINKPAD R60-9457-XXX
THINKPAD R60-9458-XXX
THINKPAD R60-9459-XXX
THINKPAD R60-9460-XXX
THINKPAD R60-9461-XXX
THINKPAD R60-9462-XXX
THINKPAD R60-9463-XXX
THINKPAD R60-9464-XXX
THINKPAD R60-TODOS OS
THINKPAD R60E-TODOS OS
ThinkPad R61 7732
ThinkPad R61 7733
ThinkPad R61 7734
ThinkPad R61 7735
ThinkPad R61 7736
ThinkPad R61 7737
ThinkPad R61 7738
ThinkPad R61 7742
ThinkPad R61 7743
ThinkPad R61 7744
ThinkPad R61 7751
ThinkPad R61 7753
ThinkPad R61 7754
ThinkPad R61 7755
ThinkPad R61 8914
ThinkPad R61 8918
ThinkPad R61 8932
ThinkPad R61 8942
ThinkPad R61 8943
THINKPAD R61 SERIES(14.1 15.0 15.4 SCREEN)
ThinkPad R61 Series(14.1 15.0 standard screens and 15.4 widescreen)
ThinkPad R61 Series(14.1 widescreen)
THINKPAD R61-TODOS OS
ThinkPad R61e 7649
ThinkPad R61e 7650
THINKPAD R61E SERIES(15.4 SCREEN)
ThinkPad R61e Series(15.4 widescreen)
THINKPAD R61E-TODOS OS
ThinkPad R61i 7650
ThinkPad R61i 7732
ThinkPad R61i 7742
ThinkPad R61i 8918
ThinkPad R61i 8932
ThinkPad R61i 8943
THINKPAD R61I SERIES(14.1 15.0 15.4 SCREEN)
ThinkPad R61i Series(14.1 15.0 standard screens and 15.4 widescreen)
ThinkPad R61i Series(14.1 widescreen)
THINKPAD R61I-4666-XXX
THINKPAD R61I-7642-XXX
THINKPAD R61I-7643-XXX
THINKPAD R61I-7644-XXX
THINKPAD R61I-7645-XXX
THINKPAD R61I-7646-XXX
THINKPAD R61I-7647-XXX
THINKPAD R61I-7648-XXX
THINKPAD R61I-7649-XXX
THINKPAD R61I-7650-XXX
THINKPAD R61I-7657-XXX
THINKPAD R61I-7732-XXX
THINKPAD R61I-7733-XXX
THINKPAD R61I-7734-XXX
THINKPAD R61I-7735-XXX
THINKPAD R61I-7736-XXX
THINKPAD R61I-7737-XXX
THINKPAD R61I-7738-XXX
THINKPAD R61I-7742-XXX
THINKPAD R61I-7743-XXX
THINKPAD R61I-7744-XXX
THINKPAD R61I-7751-XXX
THINKPAD R61I-7753-XXX
THINKPAD R61I-7754-XXX
THINKPAD R61I-7755-XXX
THINKPAD R61I-8914-XXX
THINKPAD R61I-8918-XXX
THINKPAD R61I-8919-XXX
THINKPAD R61I-8920-XXX
THINKPAD R61I-8927-XXX
THINKPAD R61I-8928-XXX
THINKPAD R61I-8929-XXX
THINKPAD R61I-8930-XXX
THINKPAD R61I-8932-XXX
THINKPAD R61I-8933-XXX
THINKPAD R61I-8934-XXX
THINKPAD R61I-8935-XXX
THINKPAD R61I-8936-XXX
THINKPAD R61I-8937-XXX
THINKPAD R61I-8942-XXX
THINKPAD R61I-8943-XXX
THINKPAD R61I-8944-XXX
THINKPAD R61I-8945-XXX
THINKPAD R61I-8946-XXX
THINKPAD R61I-8947-XXX
THINKPAD R61I-8948-XXX
THINKPAD R61I-8949-XXX
THINKPAD R61I-TODOS OS
ThinkPad Reserve Edition 8748
THINKPAD S230U
ThinkPad S230u Twist
THINKPAD S430-3364-XXX
ThinkPad SL300
ThinkPad SL300 273867B
THINKPAD SL300-2738-XXX
THINKPAD SL300-4411-XXX
THINKPAD SL300-TODOS OS
ThinkPad SL400
THINKPAD SL400-2743-XXX
THINKPAD SL400-4413-XXX
THINKPAD SL400-TODOS OS
ThinkPad SL410
THINKPAD SL410-2842-XXX
THINKPAD SL410-2874-XXX
THINKPAD SL410-TODOS OS
ThinkPad SL500
THINKPAD SL500-2746-XXX
THINKPAD SL500-4414-XXX
THINKPAD SL500-TODOS OS
ThinkPad SL510
THINKPAD SL510-2847-XXX
THINKPAD SL510-2875-XXX
THINKPAD SL510-TODOS OS
ThinkPad T400 2764
ThinkPad T400 2765
ThinkPad T400 6473
ThinkPad T400 7417
ThinkPad T400 Series
THINKPAD T400-2764-XXX
THINKPAD T400-2765-XXX
THINKPAD T400-2766-XXX
THINKPAD T400-2767-XXX
THINKPAD T400-2768-XXX
THINKPAD T400-2769-XXX
THINKPAD T400-2773-XXX
THINKPAD T400-2815-XXX
THINKPAD T400-6473-XXX
THINKPAD T400-6474-XXX
THINKPAD T400-6475-XXX
THINKPAD T400-7417-XXX
THINKPAD T400-7420-XXX
THINKPAD T400-7425-XXX
THINKPAD T400-7434-XXX
THINKPAD T400-TODOS OS
ThinkPad T400s 2801
ThinkPad T400s 2808
ThinkPad T400s 2809
ThinkPad T400s 2815
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 T410-i5
ThinkPad T410-i7
THINKPAD T410-TODOS OS
THINKPAD T410I-2516-XXX
THINKPAD T410I-2518-XXX
THINKPAD T410I-2519-XXX
THINKPAD T410I-2522-XXX
THINKPAD T410I-2537-XXX
THINKPAD T410I-2538-XXX
THINKPAD T410I-2539-XXX
THINKPAD T410I-TODOS OS
ThinkPad T410s
THINKPAD T410S-TODOS OS
THINKPAD T410SI
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
THINKPAD T420-4177-XXX
THINKPAD T420-4178-XXX
THINKPAD T420-4179-XXX
THINKPAD T420-4180-XXX
THINKPAD T420-4236-XXX
THINKPAD T420-4237-XXX
THINKPAD T420-4238-XXX
lenovo-40y7700

How to check the lenovo 42t4431 adapter problem

  1, Make sure the 42t4431 AC adapter is firmly and securely plugged into the wall outlet. Check adapter indicator light. Many laptop AC adapters have a power indicator light on the adapter brick. Check for this indicator light and if there is one, make sure it is light up with a green light. If you see a power indicator it is a good indication that the adapter is at least receiving power.

  2, The metal tip on the lenovo 42t4431 adapter cord needs to be firmly attached to the laptop for the laptop to receive power from the adapter. Also, in either the metal tip on the adapter or the connection on the laptop, there is often a small metal pin. Make sure this pin is not bent or broken as that can cause a problem with the laptop receiving power from the adapter.

  3, Use a multimeter. Plug in the AC adapter. Then touch one probe to the negative part of the plug (usually the outer casing) and the other to the positive contact (typically a pin inside the plugs outer casing). Your looking for a match on the voltage and amperage listed under “output” on the sticker on the adapter. You don't need to worry about touching the positive probe to the negative contact and vise versa, it will not hurt it and you'll get the same reading either way.

If you see voltage or amperage that jumps around from high to low a lot, Ditch that adapter immediately, it can seriously damage anything it's plugged into.

If the voltageis off by just a bit that's ok, same goes for amperage. But if it's more than 1 volt or 1 amp off be concerned.

Note: a laptop should always be matched to an adapter that provides the exact voltage the sticker on the bottom of the laptop calls for. Again, 1 volt or less off is OK but not ideal. Anything under or over can damage the laptop. But amperage can go over and more than what is called for can be desirable as it will charge the laptop battery faster.

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Shopping with us is safe and secure. None of our customers have ever reported fraudulent use of their credit cards as a result of shopping with us.When you purchase lenovo 42t4431 laptop ac adapters from us, You can be assured that the information you give us is confidential. We do not sell, rent or share information of our customers with other parties.

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