Compatible with Laptop Models:

Probook 4330s  Probook 4436s   Probook 4535s
Probook 4331s  Probook 4440s   Probook 4540s
Probook 4430s   Probook 4441s   Probook 4545s
Probook 4431s   Probook 4446s   Probook 4741s
Probook 4435s   Probook 4530s

Compatible Part Numbers

3ICR19/66-2  HSTNN-Q87C-4   HSTNN-XB2O
633733-1A1  HSTNN-Q87C-5   HSTNN-XB2R
633733-321  HSTNN-Q88C-4    HSTNN-XB2T
633805-001  HSTNN-Q88C-5    HSTNN-XB3C
650938-001  HSTNN-Q89C       LC32BA122
HSTNN-DB2R   HSTNN-XB2E   PR06
HSTNN-I02C    HSTNN-XB2F   PR09
HSTNN-I97C-3  HSTNN-XB2G   QK646AA
HSTNN-I97C-4   HSTNN-XB2H  QK646U
HSTNN-I98C-5   HSTNN-XB2I   HSTNN-LB2R
HSTNN-I99C-3   HSTNN-XB2N   HSTNN-OB2R
HSTNN-I99C-4    HSTNN-IB2R

The formula for capacity and battery using time.

For example: Voltage: 11.1V; Capacity: 5200mAh/58Wh 

The capacity = 58Wh / Voltage * 1000

Battery using time = Charge Remaining / Dischage Rate(Amperage) 

For example: Charge Remaining(mAh): 6960; Amperage(mA):-2898 

The battery using time = 6960 / 2898 = 2.4 hours.