NEW  LITHIUM BATTERY TECHNOLOGY FOR HP COMPAQ Presario V6320CA HP PAVILION DV6000 DV9000 SERIES NOTEBOOKS CMOS / REAL TIME CLOCK BATTERY (replaces models and part references below) replaces P/N :  AHL03003095 replaces P/N : CR2032-2E31R+ 3 Volt LITHIUM BATTERY THIS BATTERY IS FOR THE MODELS HP PAVILION DV6000 HP PAVILION DV6100 HP PAVILION DV6200 HP PAVILION DV6300 HP PAVILION DV6500 HP PAVILION DV9000 HP PAVILION DV9220 HP PAVILION DV9300 HP PAVILION DV9330 COMPAQ PRESARIO V6000 COMPAQ PRESARIO V6100 COMPAQ PRESARIO  V6320CA COMPAQ PRESARIO V6400 COMPAQ PRESARIO V6500   Brand New 3 volt Lithium Battery for HP Compaq Pavilion & Presario series Notebooks. This brand new Lithium battery as shown will provide the necessary bias voltage to backup the firmware data that's on the eeprom chip restoring the date/time errors that you obtained on your Pavilion/Presario models listed. We ask that you first test our battery. Applicable voltage readings will be supplied to you, from which you can then retest to validate the voltage readings before replacing your cmos rtc battery. The user should be able to replace the cmos battery with no problems, although tools and test equipment would be necessary if problems remain on the notebook due to other factors not within the scope of the cmos battery curing the fault of the notebook.