*Please double check your old battery against our pictures, mainly unique edges and connection points*
Compatible Part Number (Ctrl+F)
HP COMPAQ
HSTNN-IB1A HSTNN-CB1A HSTNN-DB1A HSTNN-CBOX HSTNN-LB1A
HSTNN-Q78C HSTNN-Q78C-3 HSTNN-Q78C-4
HSTNN-Q81C HSTNN-Q81C-3 HSTNN-Q81C-4
HSTNN-W79C-5 HSTNN-W79C-7
HSTNN-W80C
HSTNN-I86C-3 HSTNN-I86C-4 HSTNN-I86C-5
HSTNN-I85C-3 HSTNN-I85C-4 HSTNN-I85C-5
587706-761 587706-761 587706-751 593572-001 BQ350AA
Compatible Model (Ctrl+F)
COMPAQ
Compaq 320 Compaq 321 Compaq 325 Compaq 326
Compaq 420 Compaq 421
Compaq 620 Compaq 621
HP
HP 420 HP 425 HP 4320t HP 620 HP 625
ProBook 4320s ProBook 4321s ProBook 4325s ProBook 4326s
ProBook 4420s ProBook 4421s ProBook 4425s
ProBook 4520s ProBook 4525s ProBook 4720s
Proper Battery Usage
> For first time usage, please charge the battery for 3 to 4 hours before using the laptop – usually it requires 2 to 3 charge/ discharge cycles before the battery achieves maximum capacity.
> Best practice is to unplug the charger when the battery is full. And plug in charger when battery reaches 20% to 30%.
> Usage time depends on how you are using your laptop. eg screen brightness, number of applications running etc. Average time is around 2 to 3 hours of continuous usage.
> Careful not to short-circuit the battery by placing the terminals in contact with other metal objects.
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