HP Probook 4530s 4535s 4540s 4545s

Laptop battery for hp probook 4330s 4331s 4430s 4431s 4435s 4530s 4535s 4536s 4440s 4441s 4446s 4540s 4545s compatible models: for hp probook 4330s 4331s 4430s 4431s 4435s 4436s 4440s 4441s 4445s 4446s 4530s 4535s 4540s 4545s pr06 pr09 qk646ut 633805-001 hstnn-db2r hstnn-lb2r hstnn-ob2r replacement notebook laptop battery batteries high quality grade "a" cells. charges quickly. longer discharge time. steady output and low power consumption. more than 500 times charge-discharge cycles.all products are certified by ce rohs ul1642 fcc for safety.