The laptop battery is compatible with 

HP ZBook 15U G6 Series

Battery Model
TT03 TT03XL
Note:Please check if this battery is compatible with your computer before purchasing.  

"How to Purchase the Correct Battery

Method 1:

1.   Press Windows + R on your laptop.
2.   Type """"msinfo32"""" and click OK.
3.   In the pop-up window, locate the """"System Model"""" to find your specific laptop model.

Method 2:

1.   Remove the battery from your computer.
2.   Check the model of your battery.
3.   Refer to the compatible list to ensure the model you are searching for matches the battery you need.

  If the model is listed as compatible, that's the right battery for your laptop.
Note: When purchasing the battery, make sure it is compatible with your laptop model to ensure proper functionality." High quality materials and battery cells to ensure true capacity and more recharge cycles. Expected operation time: 3-4 hours. This may vary, depending on device type and the way it is used. Low power consumption IC design. Overcharging and Discharging Circuit Protection.