Correction of the correct method of laptop battery Do not take pity on you laptop battery! Some people in order to spare his own HP EliteBook 6930p battery, long home without frequently used to extend HP EliteBook 6930p life up to this point of view is wrong. Remove the cloak of battery battery factory has been activated (if you buy the hoard goods, long time hoarding, need to be re-activated). So there is no need to be bought back three the secondary shutdown adequate than 12 hours. elitebook 6930p calibration method: When the battery capacity decreased a lot and obviously feeling reduce the time you can use the battery calibration, the official story is the best 3 month correction time.