You may find battery detail specification as below:
Capacity:50WH
Voltage:11.55V
Battery Type:Li-ion
Color:Black
Battery Part Number:SS03XL
Replace Battery Part Numbers:
SS03XL HSTNN-LB8G HSTNN-IB8C 932823-421 933321-855
HSN-I12C HSN-I13C-4 HSN-I13C-5 HSN-I16C HSN-I17C-4 HSN-I17C-5

Compatible Laptop Models:
For HP EliteBook 730 G5
For HP EliteBook 735 G5
For HP EliteBook 740 G5
For HP EliteBook 745 G5
For HP EliteBook 755 G5
For HP EliteBook 830 G5
For HP EliteBook 840 G5
For HP EliteBook 735 G6
For HP EliteBook 745 G6
For HP EliteBook 830 G6
For HP EliteBook 840 G6
For HP ZBook 14U G5
For HP ZBook 14U G6
For HP MT44 Mobile Thin Client (3JG89EA)

Excellent Customer After-sales:
Free After-sales Technology Support by email

Battery Use Tips:
1.Please discharge the new battery capacity to 5% ,not to 0% and then charge to 95%, and cycle 3-4 times before normal use.
2.Don't connect adapter for a long time while using the battery. It may damage the battery.
3.Do not use or store the battery in hot or humid conditions.
4.If you remove the battery for a long time, charge it more than 80% at least one time within one month.
5.Do not disassemble, crush or puncture the battery. Do not dispose of the battery in fire or water.