Note : 1. 10.8V and 11.1V are compatible, they are in common use. 2. The 6600mAh(9 Cells) battery will extend out about 1 inch from the back of the laptop, bigger size but lasting longer.

Product Features

Excellent Quality，Thorough Service

The replacement battery for IBM 42T4544 from BatteryBuy.us will be your best choice. We offer the high quality laptop battery at a more reasonable price. Our IBM 42T4544 batteries can be charged/discharged for at least 600 cycles. Being made of ABS plastic case and the original IC protection chip, it could give you new experience of excellent durability.

With first-class quality assurance, the battery for IBM 42T4544 provides protections of voltage, short circuit, charging time, ESD, and so on. Each IBM 42T4544 laptop battery has passed a series of safety certifications, such as CE, UL, ROHS, ISO9001/9002. It will be rigorously tested by our technicians before being shipped to your hands. We will try our best to select a high quality IBM 42T4544 battery for you.

In addition, we provide a 30-day money back guarantee and a one-year warranty for you. If you have any dissatisfaction after receiving the battery for IBM 42T4544, you can click the link to find more details about our Returns and Warranty service. Please rest assured to purchase from us！

Multiple Intelligent Protection

INTELLIGENT PROTECTION
VOLTAGE PROTECTION
SHORT CIRCUIT PROTECTION
ESD PROTECTION
OVER HEAT PROTECTION
OVER (DIS)CHARGE PROTECTION
CHARGING TIME PROTECTION
CLASS A PROTECTION

Product Larger Images

Compatible IBM Part Numbers

40Y6795
40Y6797
40Y6798
40Y6799
41N5666
42T4504
42T4511
42T4513
42T4544
42T4560
42T4561
42T4566
42T4572
42T5233
42T5234
42T5245
42T5246
92P1134
92P1142
ASM 42T4545
ASM 92P1128
ASM 92P1130
ASM 92P1132
ASM 92P1138
ASM 92P1140
ASM 92P1142
FRU 42T4502
FRU 42T4504
FRU 42T4511
FRU 42T4513
FRU 42T4619
FRU 42T4651
FRU 42T5232
FRU 42T5233
FRU 92P1127
FRU 92P1129
FRU 92P1131
FRU 92P1133
FRU 92P1137
FRU 92P1139
FRU 92P1141

Compatible IBM Laptop Models

ThinkPad R500
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
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
ThinkPad R61 (14.1" & 15.0" STANDARD SCREENS AND 15.4" WIDESCREEN)
ThinkPad R61 7642
ThinkPad R61 7643
ThinkPad R61 7644
ThinkPad R61 7645
ThinkPad R61 7646
ThinkPad R61 7647
ThinkPad R61 7648
ThinkPad R61 7649
ThinkPad R61 7650
ThinkPad R61 7657
ThinkPad R61 8914
ThinkPad R61 8918
ThinkPad R61 8919
ThinkPad R61 8920
ThinkPad R61 8927
ThinkPad R61 8928
ThinkPad R61 8929
ThinkPad R61 8930
ThinkPad R61 8932
ThinkPad R61 8933
ThinkPad R61 8934
ThinkPad R61 8935
ThinkPad R61 8936
ThinkPad R61 8937
ThinkPad R61 8942
ThinkPad R61 8943
ThinkPad R61 8944
ThinkPad R61 8945
ThinkPad R61 8947
ThinkPad R61 8948
ThinkPad R61 8949
ThinkPad R61
ThinkPad R61E (15.4" WIDESCREEN)
ThinkPad R61E 7642
ThinkPad R61E 7643
ThinkPad R61E 7644
ThinkPad R61E 7645
ThinkPad R61E 7646
ThinkPad R61E 7647
ThinkPad R61E 7648
ThinkPad R61E 7649
ThinkPad R61E 7650
ThinkPad R61E 7657
ThinkPad R61E 8914
ThinkPad R61E 8918
ThinkPad R61E 8919
ThinkPad R61E 8920
ThinkPad R61E 8927
ThinkPad R61E 8928
ThinkPad R61E 8929
ThinkPad R61E 8930
ThinkPad R61E 8932
ThinkPad R61E 8933
ThinkPad R61E 8934
ThinkPad R61E 8935
ThinkPad R61E 8936
ThinkPad R61E 8937
ThinkPad R61I (14.1" & 15.0" STANDARD SCREENS AND 15.4" WIDESCREEN)
ThinkPad R61I 7642
ThinkPad R61I 7643
ThinkPad R61I 7644
ThinkPad R61I 7645
ThinkPad R61I 7646
ThinkPad R61I 7647
ThinkPad R61I 7648
ThinkPad R61I 7649
ThinkPad R61I 7650
ThinkPad R61I 7657
ThinkPad R61I 8914
ThinkPad R61I 8918
ThinkPad R61I 8919
ThinkPad R61I 8920
ThinkPad R61I 8927
ThinkPad R61I 8928
ThinkPad R61I 8929
ThinkPad R61I 8930
ThinkPad R61I 8932
ThinkPad R61I 8933
ThinkPad R61I 8934
ThinkPad R61I 8935
ThinkPad R61I 8936
ThinkPad R61I 8937
ThinkPad R61I 8943
ThinkPad SL300
ThinkPad SL400
ThinkPad SL400C
ThinkPad SL500
ThinkPad SL500C
ThinkPad T500
ThinkPad T60 1951
ThinkPad T60 1952
ThinkPad T60 1953
ThinkPad T60 1954
ThinkPad T60 1955
ThinkPad T60 1956
ThinkPad T60 2007
ThinkPad T60 2008
ThinkPad T60 2009
ThinkPad T60 2613
ThinkPad T60 2623
ThinkPad T60 2637
ThinkPad T60 6369
ThinkPad T60 6371
ThinkPad T60 6372
ThinkPad T60 6373
ThinkPad T60 6374
ThinkPad T60 6457
ThinkPad T60 6458
ThinkPad T60 6459
ThinkPad T60 6460
ThinkPad T60 6461
ThinkPad T60 6462
ThinkPad T60 6463
ThinkPad T60 6465
ThinkPad T60 6466
ThinkPad T60 6467
ThinkPad T60 6468
ThinkPad T60 6469
ThinkPad T60 6470
ThinkPad T60 6471
ThinkPad T60 8741
ThinkPad T60 8742
ThinkPad T60 8743
ThinkPad T60 8744
ThinkPad T60 8745
ThinkPad T60 8746
ThinkPad T60
ThinkPad T60P 1951
ThinkPad T60P 1952
ThinkPad T60P 1953
ThinkPad T60P 1954
ThinkPad T60P 1955
ThinkPad T60P 1956
ThinkPad T60P 2007
ThinkPad T60P 2008
ThinkPad T60P 2009
ThinkPad T60P 2613
ThinkPad T60P 2623
ThinkPad T60P 2637
ThinkPad T60P 6369
ThinkPad T60P 6370
ThinkPad T60P 6371
ThinkPad T60P 6372
ThinkPad T60P 6373
ThinkPad T60P 6374
ThinkPad T60P 6457
ThinkPad T60P 6458
ThinkPad T60P 6459
ThinkPad T60P 6460
ThinkPad T60P 6461
ThinkPad T60P 6462
ThinkPad T60P 6463
ThinkPad T60P 6465
ThinkPad T60P 6466
ThinkPad T60P 6467
ThinkPad T60P 6468
ThinkPad T60P 6469
ThinkPad T60P 6470
ThinkPad T60P 6471
ThinkPad T60P 8741
ThinkPad T60P 8742
ThinkPad T60P 8743
ThinkPad T60P 8744
ThinkPad T60P 8745
ThinkPad T60P 8746
ThinkPad T60P
ThinkPad T61 (14.1" STANDARD SCREENS AND 15.4" WIDESCREEN)
ThinkPad T61 6457
ThinkPad T61 6458
ThinkPad T61 6459
ThinkPad T61 6460
ThinkPad T61 6461
ThinkPad T61 6462
ThinkPad T61 6463
ThinkPad T61 6464
ThinkPad T61 6465
ThinkPad T61 6466
ThinkPad T61 6467
ThinkPad T61 6468
ThinkPad T61 6470
ThinkPad T61 6471
ThinkPad T61 8889
ThinkPad T61 8890
ThinkPad T61 8891
ThinkPad T61 8892
ThinkPad T61 8893
ThinkPad T61 8894
ThinkPad T61 8895
ThinkPad T61 8896
ThinkPad T61 8897
ThinkPad T61 8898
ThinkPad T61 8899
ThinkPad T61 8900
ThinkPad T61 8938
ThinkPad T61 8939
ThinkPad T61
ThinkPad T61P (14.1" STANDARD SCREENS AND 15.4" WIDESCREEN)
ThinkPad T61P 6457
ThinkPad T61P 6458
ThinkPad T61P 6459
ThinkPad T61P 6460
ThinkPad T61P 6461
ThinkPad T61P 6462
ThinkPad T61P 6463
ThinkPad T61P 6464
ThinkPad T61P 6465
ThinkPad T61P 6466
ThinkPad T61P 6467
ThinkPad T61P 6468
ThinkPad T61P 6470
ThinkPad T61P 6471
ThinkPad T61P 8889
ThinkPad T61P 8890
ThinkPad T61P 8891
ThinkPad T61P 8892
ThinkPad T61P 8893
ThinkPad T61P 8894
ThinkPad T61P 8895
ThinkPad T61P 8896
ThinkPad T61P 8897
ThinkPad T61P 8898
ThinkPad T61P 8899
ThinkPad T61P 8900
ThinkPad T61P 8938
ThinkPad T61P 8939
ThinkPad T61P
ThinkPad W500
ThinkPad Z60M 0660
ThinkPad Z60M 0672
ThinkPad Z60M 0673
ThinkPad Z60M 0674
ThinkPad Z60M 0675
ThinkPad Z60M 2529
ThinkPad Z60M 2530
ThinkPad Z60M 2531
ThinkPad Z60M 2532
ThinkPad Z60M 9450
ThinkPad Z60M 9451
ThinkPad Z60M 9452
ThinkPad Z60M 9453
ThinkPad Z60M
ThinkPad Z61E 0660
ThinkPad Z61E 0672
ThinkPad Z61E 0673
ThinkPad Z61E 0674
ThinkPad Z61E 0675
ThinkPad Z61E 2529
ThinkPad Z61E 2530
ThinkPad Z61E 2531
ThinkPad Z61E 2532
ThinkPad Z61E 9450
ThinkPad Z61E 9451
ThinkPad Z61E 9452
ThinkPad Z61E 9453
ThinkPad Z61E
ThinkPad Z61M 0660
ThinkPad Z61M 0672
ThinkPad Z61M 0673
ThinkPad Z61M 0674
ThinkPad Z61M 0675
ThinkPad Z61M 2529
ThinkPad Z61M 2530
ThinkPad Z61M 2531
ThinkPad Z61M 2532
ThinkPad Z61M 9450
ThinkPad Z61M 9451
ThinkPad Z61M 9452
ThinkPad Z61M 9453
ThinkPad Z61M
ThinkPad Z61P 0660
ThinkPad Z61P 0672
ThinkPad Z61P 0673
ThinkPad Z61P 0674
ThinkPad Z61P 0675
ThinkPad Z61P 2529
ThinkPad Z61P 2530
ThinkPad Z61P 2531
ThinkPad Z61P 2532
ThinkPad Z61P 9450
ThinkPad Z61P 9451
ThinkPad Z61P 9452
ThinkPad Z61P 9453
ThinkPad Z61P

Shipping Methods

Payment Methods

Warranty

1-Year Warranty
All our high quality replacement batteries for IBM 42T4544 laptop come with a 1-year warranty. Warranty is applicable if the buyer has installed the battery properly in the device and has treated the battery correctly.

30-Day Money Back Guarantee
Our goal is to turn customer satisfaction into ‘Complete Customer Satisfaction’. That's why we offer you a 30-day money back guarantee, on top of our warranty and RMA procedure for defects!
Please note: in order to qualify to get your money back, you must first contact us and await instructions before sending back your product.

Returns

If you have a problem with one battery which bought from us, please contact us first. We will process your request and try to find a solution for your problem. If the problem cannot be fixed by our technical support engineer, we will generate an RMA number (Return Material Authorization) for you. If inspection concludes that the returned battery is defective, a new battery will be shipped out without extra charge.
Please note: we cannot process returned batteries if you have not yet received an RMA number.

FAQs

Q: Is this IBM 42T4544 battery compatible with my laptop？

A: Through product compatibility table, you can check if IBM 42T4544 battery is compatible with your laptop. Clicking product larger Images, you can confirm the selected correctness of IBM 42T4544 laptop battery. What’s more, please pay attention to check if the voltage (rated value) is the same as your old one. For more details please click How to find one correct battery for my laptop?

Q: How long will the IBM 42T4544 battery last? When should I replace my battery?

A: All rechargeable batteries are being spoilt gradually from the date it starts running. Performance degradation will be found by users in 18-24 months. When the runtime is unable to meet your demand, we’d suggest you buy a new IBM 42T4544 battery.

Q: How to charge my IBM 42T4544 laptop battery correctly？

A: There is no need for you to charge the battery over 12 hours, just charge and discharge it normally instead. Because lithium-ion battery has no memory effect. Additionally, you should charge in time while the power remains only 10%-20%. If your battery won’t be used for a long time, please charge it once a month and keep battery power over 50%. Moreover, there is no harm even if you charge battery while using your laptop or supply external power in a fully-charged state. However, if your laptop has been running at high speed for a long time, which causes overheat insides, you'd better take the IBM 42T4544 battery out of laptop.

Q: How to replace my IBM 42T4544 laptop battery?

1 Turn off laptop and unplug the power cord.
2 Remove the battery release button, and then uninstall your old IBM 42T4544 battery carefully.
3 Use a clean cloth to wipe off dust from the battery compartment. It’d be better if you could wipe the exposed conductive part, which connects battery and laptop, with alcohol to remove the copper rust before installing a new battery.
4 Keep your laptop and battery in a cool dry place (heat may destroy a battery).
5 Install new IBM 42T4544 replacement battery into your laptop, and remember to close the battery latch.