Hp Elitebook 840 850 845 855 740 745 750 755 Battery-CM03XL

The laptop battery is compatible with 

Before using the new replacement battery for the first time, make sure that the battery is fully charged. 

Compatible Models: 

HP EliteBook 740 G1 G2 

HP EliteBook 745 G1 G2

HP EliteBook 750 G1 G2

HP EliteBook 755 G1 G2 G3 G4 G5 

HP EliteBook 840 G1 G2 

HP EliteBOOK 845 G2    

HP EliteBook 850 G1 G2 

HP EliteBOOK 855 G2 

HP ZBook 14 G2 

HP ZBook 15U G2 

HP ZBook 14 E7U24AA Mobile Workstation 

Compatible Part Number:     CM03 CM03XL CO06 CO06XL CM03024XL-PL CM03050XL

Replacement batteries need breaking in: fully charge the notebook battery, discharge it down to 20% remaining and then fully charge it again, repeat 3-4 times to break-in the notebook battery and get it to charge to its maximum  ·Do not impact, drop, crush, pierce, throw or hit your laptop battery pack, as it can damage the battery cell inside.Lithium Ions can be ruined if the voltage drops below a certain level, avoid letting your notebook battery drain completely and repeatedly.Do not store your laptop away for extended periods with the battery attached. Please remove the replacement battery pack from the notebook before storing it away.
Fully charge/discharge battery up to 4 cycles before achieving full capacity of a new battery  Fully charge and discharge the replacement laptop battery every two to three weeks for battery conditions