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:  dark grey
Dimension:  150.00x77.30x20.00 mm
Capacity:  4400 mAh
Volt:  14.80 V

Replace battery part number: 
COMPAQ
CM2041A CM2041B
CM2051A CM2051B
CM2051E CM2000
CM2020 CM2040
CM2041A CM2050
CM2051A CM2060
CM2070 
116314-001 138184-001
176778-001 176780-B21
177458-001 202960-001
222114-001 234232-B21
239817-001 292560-001
292861-001 293768-001
293817-001 293876-001
330936-001 330985-B21
347732-001 347736-001
388644-B21 388647-001

 
This battery is also compatible with the following models : 
COMPAQ
PRESARIO 1200 PRESARIO 1200 SERIES PRESARIO 1200T
PRESARIO 1200T SERIES PRESARIO 1200US PRESARIO 1200XL
PRESARIO 1200XL101 PRESARIO 1200XL102 PRESARIO 1200XL103
PRESARIO 1200XL104 PRESARIO 1200XL105 PRESARIO 1200XL106
PRESARIO 1200XL109 PRESARIO 1200XL110 PRESARIO 1200XL111
PRESARIO 1200XL118 PRESARIO 1200XL119 PRESARIO 1200XL125
PRESARIO 1200XL126 PRESARIO 1200XL127 PRESARIO 1200XL3
PRESARIO 1200XL300 PRESARIO 1200XL325 PRESARIO 1200XL401
PRESARIO 1200XL404 PRESARIO 1200XL406 PRESARIO 1200XL408
PRESARIO 1200XL409 PRESARIO 1200XL420 PRESARIO 1200XL423
PRESARIO 1200XL500 PRESARIO 1200XL505 PRESARIO 1200XL510
PRESARIO 1200XL515 PRESARIO 1200XL526 PRESARIO 1200XL SERIES
PRESARIO 1201AP PRESARIO 1201Z PRESARIO 1207
PRESARIO 1210 PRESARIO 1214 PRESARIO 1214SR
PRESARIO 1215 PRESARIO 1216 PRESARIO 1220
PRESARIO 1221 PRESARIO 1230 PRESARIO 1232
PRESARIO 1234 PRESARIO 1235 PRESARIO 1236
PRESARIO 1237 PRESARIO 1240 PRESARIO 1242
PRESARIO 1244 PRESARIO 1245 PRESARIO 1246
PRESARIO 1247 PRESARIO 1250 PRESARIO 1255
PRESARIO 1256 PRESARIO 1260 PRESARIO 1262
PRESARIO 1266 PRESARIO 1267 PRESARIO 1270
PRESARIO 1272 PRESARIO 1273 PRESARIO 1274
PRESARIO 1275 PRESARIO 1277 PRESARIO 1278
PRESARIO 1279 PRESARIO 1280 PRESARIO 12XL
PRESARIO 12XL101 PRESARIO 12XL103 PRESARIO 12XL104
PRESARIO 12XL106 PRESARIO 12XL109 PRESARIO 12XL110
PRESARIO 12XL111 PRESARIO 12XL112 PRESARIO 12XL113
PRESARIO 12XL114 PRESARIO 12XL115 PRESARIO 12XL125
PRESARIO 12XL201 PRESARIO 12XL202 PRESARIO 12XL204
PRESARIO 12XL206 PRESARIO 12XL211 PRESARIO 12XL212
PRESARIO 12XL220 PRESARIO 12XL222 PRESARIO 12XL223
PRESARIO 12XL300 PRESARIO 12XL301 PRESARIO 12XL302
PRESARIO 12XL303 PRESARIO 12XL305 PRESARIO 12XL307
PRESARIO 12XL310 PRESARIO 12XL311 PRESARIO 12XL312
PRESARIO 12XL314 PRESARIO 12XL320 PRESARIO 12XL323
PRESARIO 12XL325 PRESARIO 12XL326 PRESARIO 12XL327
PRESARIO 12XL330 PRESARIO 12XL4 PRESARIO 12XL400
PRESARIO 12XL401 PRESARIO 12XL403 PRESARIO 12XL405
PRESARIO 12XL406 PRESARIO 12XL408 PRESARIO 12XL409
PRESARIO 12XL410 PRESARIO 12XL411 PRESARIO 12XL414
PRESARIO 12XL416 PRESARIO 12XL420 PRESARIO 12XL421
PRESARIO 12XL423 PRESARIO 12XL426 PRESARIO 12XL427
PRESARIO 12XL428 PRESARIO 12XL430 PRESARIO 12XL500
PRESARIO 12XL501 PRESARIO 12XL502 PRESARIO 12XL504
PRESARIO 12XL505 PRESARIO 12XL506 PRESARIO 12XL509
PRESARIO 12XL510 PRESARIO 12XL512 PRESARIO 12XL513
PRESARIO 12XL515 PRESARIO 12XL517 PRESARIO 12XL519
PRESARIO 12XL520 PRESARIO 12XL521 PRESARIO 12XL526
PRESARIO 12XL527 PRESARIO 12XL530 PRESARIO 12XL531
PRESARIO 12XL SERIES PRESARIO 1456 PRESARIO 1600
PRESARIO 1600 SERIES PRESARIO 1600T SERIES PRESARIO 1600XL145
PRESARIO 1600XL SERIES PRESARIO 1610 PRESARIO 1611
PRESARIO 1615 PRESARIO 1620 PRESARIO 1621
PRESARIO 1622 PRESARIO 1625 PRESARIO 1626
PRESARIO 1630 PRESARIO 1635 PRESARIO 1640
PRESARIO 1650 PRESARIO 1655 PRESARIO 1665
PRESARIO 1670 PRESARIO 1672 PRESARIO 1675
PRESARIO 1680 PRESARIO 1681 PRESARIO 1682
PRESARIO 1685 PRESARIO 1687 PRESARIO 1688
PRESARIO 1690 PRESARIO 1692 PRESARIO 1693
PRESARIO 1694 PRESARIO 16XL140 PRESARIO 16XL141
PRESARIO 16XL142 PRESARIO 16XL144 PRESARIO 16XL145
PRESARIO 16XL146 PRESARIO 16XL147 PRESARIO 16XL150
PRESARIO 16XL255 PRESARIO 16XL256 PRESARIO 16XL257
PRESARIO 16XL258 PRESARIO 16XL SERIES PRESARIO 1800
PRESARIO 1800 SERIES PRESARIO 1800T PRESARIO 1800T-800
PRESARIO 1800T-850 PRESARIO 1800T SERIES PRESARIO 1800XL
PRESARIO 1800XL190 PRESARIO 1800XL280 PRESARIO 1800XL380
PRESARIO 1800XL390 PRESARIO 1800XL481 PRESARIO 1800XL SERIES
PRESARIO 1805 PRESARIO 1810 PRESARIO 1820
PRESARIO 1825 PRESARIO 1827 PRESARIO 1830
PRESARIO 18XL180 PRESARIO 18XL181 PRESARIO 18XL182
PRESARIO 18XL183 PRESARIO 18XL185 PRESARIO 18XL186
PRESARIO 18XL280 PRESARIO 18XL281 PRESARIO 18XL2 SERIES
PRESARIO 18XL380 PRESARIO 18XL381 PRESARIO 18XL390
PRESARIO 18XL481 PRESARIO 18XL482 PRESARIO 18XL483
PRESARIO 18XL484 PRESARIO 18XL485 PRESARIO 18XL580
PRESARIO 18XL581 PRESARIO 18XL583 PRESARIO 18XL584
PRESARIO 18XL585 PRESARIO 18XL586 PRESARIO 18XL590
PRESARIO 18XL SERIES PRESARIO 2940 PROSIGNIA 150

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 292560-001 292861-001 293817-001 293876-001 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.