• HP HSTNN-Q60C notebook batteries pack  for HP G42 G42t G72 G62 G62t series
• HP ST09 notebook batteries pack  for HP 8460w 8560w 8760w Mobile Workstations
• HP HSTNN-XB60 notebook batteries pack  for HP EliteBook 8540p 8730p 8740w
• HP HSTNN-DB1U notebook batteries pack  for Compaq Mini CQ10-400 PC Series
• HP F1739A notebook batteries pack  for HP Pavilion N3210 N3215 N3250 N3270 N3290 N3295
• HP MU06 notebook batteries pack  for HP Envy 17 Notebook PC
• HP_COMPAQ HSTNN-A25C notebook batteries pack  for HP Compaq Presario B1903TU B1904TU B1905TU B1952TU B1953TU
• HP_COMPAQ HSTNN-C12C notebook batteries pack  for HP Compaq NX-6310 NX-6320 NX-6325 series
• HP HSTNN-C16C notebook batteries pack  for HP Pavilion dv8211ea dv8211eu dv8211tx dv8212ea dv8212tx dv8213cl dv8213ea
• HP HSTNN-IB20 notebook batteries pack  for HP Pavilion dv8208tx dv8209tx dv8210ca dv8210ea dv8210tx dv8210us dv8208ea

1. Your new HP QK642AA notebook Battery comes in a discharged condition and must be charged before use (refer to your computer manual for charging instructions). Upon initial use (or after a prolonged storage period) the battery may require two to three charge/discharge cycles before achieving maximum capacity.
2. When charging QK642AA Battery for the first time your computer may indicate that charging is complete after just 10 or 15 minutes. This is a normal phenomenon with rechargeable batteries. Simply remove the notebook rechargeable batteries pack from the computer and repeat the charging procedure.
3. If HP QK642AA Battery packwill not be in use for a month or longer, it is recommended that it be removed from the device and stored in a cool, dry, clean place.
4. It is normal for QK642AA laptop computer Battery to become warm during charging and discharging.
5. A charged HP QK642AA laptop Battery will eventually lose its charge if unused. It may therefore be necessary to recharge the battery after a storage period.