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:
Capacity: 4000mAh
Volt: 11.1V(can not not compatible with 14.8)

Replace battery part number:

(can't compatible with 14.8V)
TM00741
TM00751
GRAPE32
LC.BTP00.005
CONIS71
BT.00603.024
BT.00604.011
T.00604.015
LIP6232ACPC
This battery is also compatible with the following models :
ACER
TravelMate 6410
TravelMate 6413
TravelMate 6414
TravelMate 6460
TravelMate 6463
TravelMate 6464
TravelMate 6465
Acer Extensa 5620G Serien,
Acer TravelMate 5710 Serien
Acer Extensa 5210 Serien
Extensa 5210-300508

Acer Extensa 5220 Serien
Extensa 5220-051G08Mi, Extensa 5220-100508,
Extensa 5220-100508Mi, Extensa 5220-101G08Mi,
Extensa 5220-1A1G12, Extensa 5220-1A1G16,
Extensa 5220-200508, Extensa 5220-201G08,
Extensa 5220-201G12Mi

Acer Extensa 5620Z Serien
Extensa 5620Z-1A2G08Mi, Extensa 5620Z-1A2G12Mi,
Extensa 5620Z-2A1G08Mi, Extensa 5620Z-2A1G16,
Extensa 5620Z-2A2G08Mi, Extensa 5620Z-3A1G16

Acer TravelMate 5310 Serien
TravelMate 5310-400508Mi

Acer TravelMate 5320 Serien
TravelMate 5320-051G16Mi, TravelMate 5320-101G12Mi,
TravelMate 5320-101G16Mi, TravelMate 5320-201G16Mi,
TravelMate 5320-202G16Mi, TravelMate 5320-2518

Acer TravelMate 5520 Serien
TravelMate 5520-401G16, TravelMate 5520-402G16Mi,
Travelmate 5520-501G12Mi, TravelMate 5520-501G16Mi,
Travelmate 5520-502G16Mi, TravelMate 5520-5134,
TravelMate 5520-5283, TravelMate 5520-5308,
TravelMate 5520-5313, TravelMate 5520-5421,
TravelMate 5520-5424, TravelMate 5520-5568,
TravelMate 5520-5678, TravelMate 5520-5762,
TravelMate 5520-5929, TravelMate 5520-6A1G08Mi,
TravelMate 5520-6A2G12Mi, TravelMate 5520-6A2G16Mi,
TravelMate 5520-7A2G16Mi

Acer TravelMate 5520G Serien
TravelMate 5520G-402G16, TravelMate 5520G-402G16Mi,
TravelMate 5520G-502G25Mi, TravelMate 5520G-602G25

Acer TravelMate 5720 Serien
TravelMate 5720-101G12Mi, TravelMate 5720-101G12Mn,
TravelMate 5720-301G12Mi, TravelMate 5720-301G12Mn,
TravelMate 5720-301G16Mi, TravelMate 5720-301G16N,
TravelMate 5720-302G12Mi, TravelMate 5720-302G16Mi,
TravelMate 5720-302G16Mn, TravelMate 5720-302G25Mi,
TravelMate 5720-601G16, TravelMate 5720-603G25Mn,
TravelMate 5720-6120, TravelMate 5720-6337,
TravelMate 5720-6340, TravelMate 5720-6370,
TravelMate 5720-6422, TravelMate 5720-6462,
TravelMate 5720-6560, TravelMate 5720-6565,
TravelMate 5720-6635, TravelMate 5720-6722,
TravelMate 5720-6758, TravelMate 5720-6831,
TravelMate 5720-6881, TravelMate 5720-6962,
TravelMate 5720-6969, TravelMate 5720-702G25BN

Acer TravelMate 5720G Serien
TravelMate 5720G-301G16, TravelMate 5720G-302G16,
TravelMate 5720G-302G16Mi, TravelMate 5720G-602G25N,
TravelMate 5720G-704G25N

Acer TravelMate 7520 Serien
TravelMate 7520-301G16, TravelMate 7520-401G16,
TravelMate 7520-402G16, TravelMate 7520-402G16Mi,
TravelMate 7520-501G16Mi, TravelMate 7520-502G16Mi,
Travelmate 7520-502G25Mn, TravelMate 7520-5594,
TravelMate 7520-5A1G16Mi, TravelMate 7520-6A1G12Mi,
TravelMate 7520-6A2G16Mi, TravelMate 7520-6A2G25Mi,
TravelMate 7520-7A1G12Mi, TravelMate 7520-7A2G16Mi,
TravelMate 7520-7A2G25Mi

Acer TravelMate 7520G Serien
TravelMate 7520G-401G16, TravelMate 7520G-401G16Mi,
TravelMate 7520G-402G16, TravelMate 7520G-402G16Mi,
TravelMate 7520G-402G25Mi, TravelMate 7520G-502G16,
TravelMate 7520G-502G20, TravelMate 7520G-502G25,
TravelMate 7520G-502G32Mi, TravelMate 7520G-730G50

Acer TravelMate 7720 Serien
TravelMate 7720-302G16MN, TravelMate 7720-302G25Mn

Acer TravelMate 7720G Serien
TravelMate 7720G-302G16Mn, TravelMate 7720G-302G25Mn,
TravelMate 7720G-601G16N, TravelMate 7720G-602G20N,
TravelMate 7720G-602G25N, TravelMate 7720G-602G32Mn,
Travelmate 7720G-702G50Mn, TravelMate 7720G-702G50N,
TravelMate 7720G-703G50Bn

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 TM00741 / LIP623ACPC Acer Extensa 5620 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.