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:  
Dimension:  
Capacity:  4400mAh
Volt:  11.1V
Description:
 
Replace battery part number: 
255-3S4400-F1P1 255-3S4400-G1L1
255-3S4400-S1S1 255-3S4000-S1P3
255-3S4400-C1S1 255-3S4400-F1P1
255-3S4400-G1L1 255-3S4400-S1S1
255-4S2000-S1P3
23-UG5C10-0A 23-UG5C1F-0A
23-UG5C1F-0A 23VGF1F-4A
63-UG5023-0A 63-UG5023-3A
63-UG5023-BA (4-cell) 63GUG5023-4A
63GUG5023-BA (4-cell)
7025340000 7027210000
805N00017 805N00033
3S4400-S1S1 3S4400-S1S1-02
3S4400-G1P1-02
3S4400-S1S1 3S4400-S1S1-02
255XX1 259XX1 255 / 259 Series / UN255 / UN259
SA20067-01 SA2006701 
This battery is also compatible with the following models : 
FUJITSU-SIEMENS

Amilo A1640 , A1645 , A7640 ,
Amilo M1405 , M1424 , M1425 , M1425(B) ,
Amilo M1437 , M1439 ,
Amilo M7405 , M7425 ,
Amilo Pro V2020 V300
Amilo M1450 M1451 M1450G M1451G
Fujitsu Siemens M1437G

GERICOM
BlockBuster Exellent 5000
BlockBuster Exellent 7000

MAXDATA
Eco 4000 4000A 4000I , 4500 4500A 4500I 4500IW

MAXDATA
Imperio 4000, 4000A, 4500, 4500A

UNIWILL
Uniwill 245EI2 Uniwill 245II0
Uniwill 245TI0 Uniwill 245TI2
Uniwill 255ELx Uniwill 255EN
Uniwill 255ENx Uniwill 255II3
Uniwill 255IIx Uniwill 255KI3
Uniwill 255TI2 Uniwill 255TI3
Uniwill 259EI Uniwill 259EI1
Uniwill 259EI3 Uniwill 259ELx
Uniwill 259EN Uniwill 259EN3
Uniwill 259ENx Uniwill 259IA0
Uniwill 259IA1 Uniwill 259IA2
Uniwill 259IA3 Uniwill 259IA7
Uniwill 259II0 Uniwill 259II1
Uniwill 259KI2 Uniwill 259ki3
Uniwill 259ki8 Uniwill 259ti2
Uniwill N245II0 Uniwill N245TI0
Uniwill N245TI2 Uniwill N255
Uniwill N255ELx Uniwill N255EN
Uniwill N255ENx Uniwill N255II3
Uniwill N255IIx Uniwill N255TI2
Uniwill N255TI3 Uniwill N259EI
Uniwill N259EI3 Uniwill N259ELx
Uniwill N259EN Uniwill N259EN3
Uniwill N259ENx Uniwill N259IA0
Uniwill N259IA1 Uniwill N259IA2
Uniwill N259IA3 Uniwill N259IA7
Uniwill N259II0 Uniwill N259II1
Uniwill N259KI2 Uniwill N259ki3
Uniwill N259ki8 Uniwill N259ti2

Packard bell
Packard bell Easy note D5710 PM710 & D5 series

WINBOOK
WINBOOK V300 series 
 

Understanding your MAXDATA Imperio 4000 4000A 4500 4500A Battery  Needs

What is the run time of  MAXDATA Imperio 4000 4000A 4500 4500A Battery ?

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.

How can I maximize the performance of my MAXDATA Imperio 4000 4000A 4500 4500A Battery?

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 MAXDATA Imperio 4000 4000A 4500 4500A 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.