Please ensure the product(s) that you are going to buy fits the brand, model and part number of your device.

Specifications:

Battery Type: Li-ion
Color: black
Dimension: 202.10 x 42.90 x 20.35 mm
Capacity: 4400mAh
Volt: 11.1V

Replace battery part number:

BTP-ANJ1, BTP-AOJ1, BTP-APJ1
BTP-AQJ1, BTP-ARJ1, BTP-AS3620
BTP-AMJ1 BTP-ASJ1, BTP-B2J1
TM07B41, TM07B71, TM07A72, MS2180, MS2181
MS2204, MS2211, MS2229, MS2230, 934T2470F
GARDA31, GARDA32, GARDA53, GARDA72, LC.BTP01.010,
LC.BTP01.011, LC.BTP01.010, BT.00603.012, BT.00604.006

This battery is also compatible with the following models :

ACER
TravelMate 2420 3240 3280 3302 3304 5540 AS5560 AS5540 AS3640, AS3620 AS3670
Aspire 3620 5540 5550 5560 Series TravelMate 2420 2440 3240 3250 3280 Acer Extensa 3100,
Acer Extensa 4420 4420-5239
Acer TravelMate 6252-100508Mi,
Acer TravelMate 6293-6311
Acer Aspire 2920Z Series
Aspire 2920Z-2A2G16Mi,
Acer TravelMate 3250 Series
Acer Aspire 3670 5540 5560 5590 2420 2920 3620 Series
TravelMate 4320 4330 2420 2423 2424 2440 2470 Series
TravelMate 4520 4720 3240 3250 6293 6493 6593 Series
TravelMate 3280 3290 3300 6231 6291 6292 6294 Series
Extensa 4620 4720 3100 4120 4220 4420 Series
Ferrari 1100 Series
Acer Aspire 2420 Series
Acer Aspire 3640,
Acer Aspire 3670,
Acer Aspire 5590,
Acer Extensa 3100,
Acer TravelMate 4320,
Acer TravelMate 6252,
Acer TravelMate 6252-100508Mi
Acer TravelMate 3250 Series
Acer Aspire 2920 Series
Aspire 2920-1A2G16Mi, Aspire 2920-302G25Mi,
Aspire 2920-3A2G12Mi, Aspire 2920-3A2G25Mn,
Aspire 2920-5A2G25Mi, Aspire 2920-602G25Mn,
Aspire 2920-603G25Mi, Aspire 2920-832G32Mn

Acer Aspire 2920Z Series
Aspire 2920Z-2A2G16Mi, Aspire 2920Z-2A2G25Mi,
Aspire 2920Z-3A2G12Mi

Acer Aspire 3620 Series
Aspire 3620A, Aspire 3623NWXMi
Aspire 3623WXMi, Aspire 3628AWXCi
Aspire 3628NWXMi, Aspire 3628WXMi

Acer Aspire 5540 Series
Aspire 5541ANWXMi, Aspire 5542ANWXMi

Acer Aspire 5550 Series
Aspire 5552NWXMi

Acer Aspire 5560 Series
Aspire 5561AWXMi, Aspire 5562WXMi,
Aspire 5563WXMi

Acer TravelMate 2420 Series
TravelMate 2420A, TravelMate 2423WXCi,
TravelMate 2423WXMi, TravelMate 2424NWXMi,
TravelMate 2424WXCi, TravelMate 2424WXMi,
TravelMate 2428AWXMi

Acer TravelMate 2440 Series
TravelMate 2470

Acer TravelMate 3240 Series
TravelMate 3242NWXMi

Acer TravelMate 3280 Series
TravelMate 3282NWXMi, TravelMate 3282WXMi,
TravelMate 3284WXMi, TravelMate 3290

Acer TravelMate 3300 Series
TravelMate 3302WXMi, TravelMate 3304WXMi

Acer TravelMate 6231 Series
TravelMate 6231-100508Ci, TravelMate 6231-300508,
TravelMate 6231-300512, TravelMate 6231-300512a,
TravelMate 6231-301G12, TravelMate 6231-401G12Mi

Acer TravelMate 6291 Series
TravelMate 6291-101G12, TravelMate 6291-101G12Mi,
TravelMate 6291-101G16, TravelMate 6291-3A1G12Mi,
TravelMate 6291-6753

Acer TravelMate 6292 Series
TravelMate 6292-101G08, TravelMate 6292-101G16Mi,
TravelMate 6292-101G16Mn, TravelMate 6292-101G16N,
TravelMate 6292-102G16N, TravelMate 6292-301G16Mi,
TravelMate 6292-301G16MN, TravelMate 6292-301G16N,
TravelMate 6292-302G16, TravelMate 6292-302G16Mi,
TravelMate 6292-302G16Mn, TravelMate 6292-302G16N,
TravelMate 6292-5B2G16Mi, TravelMate 6292-5B2G16Mn,
TravelMate 6292-602G16Mn, TravelMate 6292-602G25Mn,
TravelMate 6292-603G32Mi, TravelMate 6292-6059,
TravelMate 6292-6700, TravelMate 6292-702G25Mn,
TravelMate 6292-832G25Mn, TravelMate 6292-834G25Mi,
TravelMate 6292-834G25Mn, TravelMate 6292-834G32Mi,
TravelMate 6292-932G25Mn

Acer TravelMate 6492 Series
TravelMate 6492-602G16Mn, TravelMate 6492-702G25Mn,
TravelMate 6492-812G25Mn, TravelMate 6492-832G25N,
TravelMate 6492-601G16N
Acer TravelMate 6293 Series (Model LG1)
6293-2A2G25Mn (LX.TQP0Z.223)
6293-5B2G25Mi (LX.TQP0Z.226)
6293-5B3G32Mn (LX.TQP0X.018)
6293-5B4G16n (LX.TQN0Z.110)
6293-5B4G25n (LX.TQN0Z.109)
6293-6055 (LX.TPQ0Z.E94, LX.TQP0Z.E94)
6293-6097 (LX.TQP0C.011)
6293-6170 (LX.TQP03.035)
6293-6280 (LX.TQP0Z.325)
6293-6311 (LX.TQP0Z.322)
6293-6464 (LX.TQP03.275)
6293-652G16Mn (LX.TQP0Z.736)
6293-652G2 (LX.TQP0Z.A90)
6293-652G25Mn (LX.TQP0Z.276, LX.TQP0Z.A99, LX.TQP0Z.B13, LX.TQP0Z.B15)
6293-652G25n (LX.TQM0Z.023, LX.TQP0Z.B17)
6293-653G32Mn (LX.TQN0Z.240)
6293-6555 (LX.TQP0Z.H33)
6293-662G16Mn (LX.TQN0Z.474)
6293-6640 (LX.TQP0Z.A37)
6293-6657 (LX.TQP03.274)
6293-6696 (LX.TPQ0Z.319, LX.TQP0Z.319)
6293-6727 (LX.TQP0Z.C54)
6293-6761 (LX.TQP0Z.423)
6293-6994 (LX.TQP0Z.C41)
6293-6B2G16Mn (LX.TQP0C.007, LX.TQP0Z.016, LX.TQP0Z.314, LX.TQP0Z.328)
6293-6B2G25Mn (LX.TQP0X.032, LX.TQP0Z.033, LX.TQP0Z.336, LX.TQP0Z.371, LX.TQP0Z.395, LX.TQP0Z.397, LX.TQP0Z.C55, LX.TQP0Z.D26)
6293-6B4G32 (LX.TQN0Z.122)
6293-842G25 (LX.TQP0Z.606)
6293-842G25Mi (LX.TQP0Z.272)
6293-842G25Mn (LX.TQP0Z.059, LX.TQP0Z.176, LX.TQP0Z.189, LX.TQP0Z.504, LX.TQP0Z.613)
6293-842G32Mn (LX.TQP0Z.425)
6293-843G32n (LX.TQP0Z.285)
6293-844G25Mn (LX.TQP0Z.138, LX.TQP0Z.139, LX.TQP0Z.305, LX.TQP0Z.C17)
6293-844G25n (LX.TQP0Z.134)
6293-844G32Mn (LX.TQN0Z.018, LX.TQN0Z.027, LX.TQN0Z.071, LX.TQN0Z.112, LX.TQP0Z.511)
6293-862G25Mn (LX.TQN0Z.004)
6293-863G32n (LX.TQN0Z.118)
6293-864G32Mn (LX.TQN0Z.116, LX.TQP0C.015, LX.TQP0Z.282)
6293-864G32n (LX.TQN0Z.108)
6293-873G32n (LX.TQP0Z.H47)
6293-873G32n-3G (LX.TQN0Z.542)
6293-874G32Mn (LX.TQP0Z.327, LX.TQP0Z.D24, LX.TQP0Z.H25)
6293-942G25Mn (LX.TQP0Z.015)
6293-964G32 (LX.TQN0Z.107)
LX.TQP03.034, LX.TQP03.038
Acer TravelMate 6493 Series (Model JAQ10)

6493-5B4G25n (LX.TQA0Z.146)
6493-6031 (LX.TQ70Z.138)
6493-6054 (LX.TQL0Z.004)
6493-6280 (LX.TQ70Z.149)
6493-6495 (LX.TQ70Z.132)
6493-6615 (LX.TQL0Z.001)
6493-6768 (LX.TQ703.028)
6493-6899 (LX.TQ70Z.273)
6493-842G16Mn (LX.TQ70Z.142, LX.TQ70Z.143)
6493-842G25 (LX.TQ70Z.113)
6493-842G25Mn (LX.TQ70Z.141)
6493-844G32Mn (LX.TQ70Z.086, LX.TQ70Z.092, LX.TQ70Z.121, LX.TQ70Z.152, LX.TQ70Z.153, LX.TQ70Z.264, LX.TQ70Z.329, LX.TQA0Z.177, LX.TQA0Z.212, LX.TQA0Z.231)
6493-862G32 (LX.TQ70Z.115)
6493-863G32Mn (LX.TQ70Z.262)
6493-863G32n (LX.TQ70Z.130, LX.TQA0Z.224)
6493-864G32Mn (LX.TQA0Z.145, LX.TQA0Z.227)
6493-874G32 (LX.TQA0Z.367)

E-Machines eMachines D620 (Model MS2257) Series
D620-261G16 (LX.N230Y.018)
D620-261G16Mi (LX.N230Y.003, LX.N230Y.028, LX.N230Y.031, LX.N240Y.004)
D620-5102 (LX.N240Y.029)
D620-5133 (LX.N230Y.055)
D620-5137 (LX.N240C.024)
D620-5150 (LX.N240Y.023)
D620-5355 (LX.N230Y.038)
D620-5506 (LX.N240Y.022)
D620-5517 (LX.N230Y.039)
D620-5561 (LX.N230Y.043)
D620-5748 (LX.N240Y.006)
D620-5772 / D620-261G12Mi (LX.N230Y.041)
D620-5777 (LX.N230Y.046)
D620-5821 (LX.N240R.002)
D620-5932 (LX.N230Y.048)

laptop batteries have two main ratings on them: Volts and Amperes. Because size and weight of laptop batteries is limited when compared to larger batteries such as car batteries, most companies show their ratings with Volts and Milliamperes. One thousand Milliamperes equals 1 Ampere. When buying a battery, select batteries with the most Milliamperes (or mAh). Batteries are also rated by Watt-Hours, perhaps the simplest rating of all. This is found by multiplying the Volts and the Amperes together. For example:

14.4 Volts, 4000mAh (Note: 4000mAh is equal to 4.0 Amperes).

14.4 x 4.0 = 57.60 Watt-Hours

Watt-Hours signifies the energy needed to power one watt for one hour. This laptop battery can power 57.60 watts for one hour. If your laptop runs at 20.50 watts, as an example, this laptop battery could power your laptop for 2.8 hours.

There are several steps you can take to help you get maximum performance from your laptop battery:

Prevent the Memory Effect - Keep the laptop battery healthy by fully charging and then fully discharging it at least once every two to three weeks. Exceptions to the rule are Li-Ion batteries which do not suffer from the memory effect.

Keep the laptop Batteries Clean - It’s a good idea to clean dirty battery contacts with a cotton swab and alcohol. This helps maintain a good connection between the battery and the portable device.

Exercise the Battery - Do not leave the battery dormant for long periods of time. We recommend using the battery at least once every two to three weeks. If a laptop battery has not been used for a long period of time, perform the new battery break in procedure described above.

Battery Storage - If you don’t plan on using the laptop battery for a month or more, store it in a clean, dry, cool place away from heat and metal objects. NiCad, NiMH and Li-Ion batteries will self-discharge during storage; remember to recharge the batteries before use.

Upgrade my E-Machines D620-5772 D620-261G12Mi battery from NiMH to Li-Ion

NiCad, NiMH and Li-Ion laptop batteries are all fundamentally different from one another and cannot be substituted unless the laptop has been pre-configured from the manufacturer to accept more than one type of battery chemistry. Please refer to your manual to find out which rechargeable battery types the laptop device supports or use our Battery Finder above to find all the compatible laptop batteries for your device. It will automatically list all of the battery chemistries supported by your specific device. If your device does allow you to upgrade the battery from NiMH to Li-Ion, you will typically get longer run times.

For example, if your laptop uses a NI-MH battery that is 9.6 Volts, 4000mAh and the new li-ion laptop battery is 14.4 Volt, 3600mAh, then you will obtain longer run time with the li-ion battery.

Example.

Li-Ion: 14.4 Volts x 3.6 Amperes = 51.84 Watt Hours
Ni-MH: 9.6 Volts x 4 Amperes = 38.4 Watt Hours
The Li-Ion is stronger and has longer run time.