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
Voltage : 10.8V
Capacity : 4400mAh/48WH / 6Cell
Color : white/black (please note color when you place order)
Dimension : 203.5*53.1*30.6(mm)

9cell UM09H41 battery please click here

Replace battery part number:

UM09C31, UM09G31, UM09H31, UM09H36, UM09H41, UM09G41, UM09H71
UM09G51, UM09G71, UM09G75, UM09H56, UM09H70, UM09H73, UM09H75

This battery is also compatible with the following models :

Acer Aspire One 253h NAV50 Series
Acer Aspire One 532 all Series
Acer Aspire One 532h all Series
Aspire One 532h, Aspire One 532h-2067,
Aspire One 532h-21b, Aspire One 532h- 21r,
Aspire One 532h-21s, Aspire One 532h-2206,
Aspire One 532h- 2223, Aspire One 532h-2242,
Aspire One 532h-2268, Aspire One 532h- 2288,
Aspire One 532h-2298, Aspire One 532h-2309,
Aspire One 532h-2326, Aspire One 532h-2333,
Aspire One 532h-2382, Aspire One 532h- 2406,
Aspire One 532h-2527, Aspire One 532h-2575,
Aspire One 532h-2588, Aspire One 532h-2594,
Aspire One 532h-2622, Aspire One 532h- 2630,
Aspire One 532h-2676, Aspire One 532h-2727,
Aspire One 532h-2730, Aspire One 532h-2742,
Aspire One 532h-2789, Aspire One 532h- 2806,
Aspire One 532h-2807, Aspire One 532h-2825,
Aspire One 532h-2938, Aspire One 532h-2942,
Aspire One 532h-2962, Aspire One 532h- 2964,
Aspire One 532h-2997, Aspire One 532h-2Bb,
Aspire One 532h -2Bb_XP316, Aspire One 532h-2Br_XP316 ,
Aspire One 532h-2Bs,Aspire One 532h-2Bs_XP316,
Aspire One 532h-2Db, Aspire One 532h-2Db_W7616,
Aspire One 532h-2Db_W7625, Aspire One 532h-2DGb_W7625 3G,
Aspire One 532h-2DGr_W7625 3G ,Aspire One 532h-2DGs_W7625 3G,
Aspire One 532h-2Dr, Aspire One 532h-2Dr_W7616,
Aspire One 532h-2Ds, Aspire One 532h- 2Ds_W7616,
Aspire One 532h-2Ds_W7625, Aspire One 532h-B123,
Aspire One 532h-B123F, Aspire One 532h-CBK123G,
Aspire One 532h- CBW123G, Aspire One 532h-CPK11,
Aspire One 532h-CPR11, Aspire One 532h- CPW11,
Aspire One 532h-R123, Aspire One 532h-W123,
Aspire One 532h-W123F

Acer Aspire One AO532h all Series
Acer Aspire One AO532h-2Db
Acer Aspire One AO532h-2Dr
Acer Aspire One AO532h -2Ds
Acer Aspire One AO532h-21s
Acer Aspire One AO532h-21b
Acer Aspire One AO532h-21r
Acer Aspire One AO532h-2223
Acer Aspire One AO532h-2226
Acer Aspire One AO532h-2730 R)

Acer Aspire One 532G all Series
Acer Aspire One AO532G all Series

Acer Aspire One 533 Series
Aspire One 533-13083
Aspire One 533-13531
Aspire One 533-13827
Aspire One 533- 13856
Aspire One 533-13870
Aspire One 533-13897
Aspire One 533-13DGkk_W7625 3G
Aspire One 533-13Dkk
Aspire One 533- 13Dkk_W7325
Aspire One 533-13Dkk_W7625
Aspire One 533-13Drr
Aspire One 533-13Drr_W7325
Aspire One 533-13Dww
Aspire One 533-13Dww_W7325
Aspire One 533-23096
Aspire One 533-23227
Aspire One 533-23571
Aspire One 533-23923
Aspire One 533- N55Dkk
Aspire One 533-N55Dkk_W7625 Noir
Aspire One 533-N55Drr
Aspire One 533-N55Dww
Aspire One 533-N55Dww_W7625 Blanc

Acer Aspire One AO533 Series
Aspire one AO533-KK3G
Aspire one AO533-WW3G

Gateway LT21 10.1¡± Inch Series
Gateway LT2101n,
Gateway LT2102, LT2102g, LT2102h, LT2102n
Gateway LT2103, LT2103h, LT2103n
Gateway LT2104, LT2104u, LT2104n
Gateway LT2105n
Gateway LT2106h, LT2106, LT2106u, LT2106n, LT2106k
Gateway LT2107, LT2107h
Gateway LT2108, LT2108u, LT2108k
Gateway LT2109k
Gateway LT2110, LT2110u, LT2110k
Gateway LT2113, LT2113u
Gateway LT2114, LT2114u
Gateway LT2115, LT2115u
Gateway LT2118, LT2118u
Gateway LT2119, LT2119u
Gateway LT2120, LT2120u
Gateway LT2122, LT2122u
Gateway LT2123, LT2123u

Acer E-Machines eMachines 350 350-21G16i eM350 NAV50 NAV51 Series
Packard Bell EasyNote Dot S2 Series

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 Gateway LT21 10.1 Inch 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.