Technical Specifications

Product Code : 4321

Battery Type : Li-ion                       

Battery Capacity : 4400mAh        

Battery Weight : 320g

Battery Voltage : 10.8V

Cell QTY : 6 Cell

Battery Color : Black

Battery Dimension : 269*42*20mm

Compatible battery codes

587706-761

HSTNN-CB1A

HSTNN-CBOX

HSTNN-DB1A

HSTNN-Q78C

HSTNN-Q78C-3

HSTNN-Q78C-4

HSTNN-Q81C

HSTNN-UB1A

HSTNN-W79C-5

HSTNN-W79C-7 

HSTNN-LB1B

Fits machine models

ProBook 4320 Series

ProBook 4320s Series

ProBook 4321 Series

ProBook 4321s Series

ProBook 4520 Series

ProBook 4520s Series

Your Right choice

1. professional laptop battery manufacture.

2. Powerful R&D team,best technical support.

3. Battery shell mold through sophisticated design, using high-intensity fire produced eco-friendly materials, the appearance of original equipment batteries to meet the requirements.

4. Using the most advanced power management chip, a combination of safe design, makes our safe and reliable battery in the premise, to achieve the best performance.

5. Batteries factory to be carried out in strict appearance and performance testing to guarantee to customers that have 100 percent yield.

6. Battery through fully computerized refined by advanced technology, lead-free operating system to ensure that the product is not mercury, lead, cadmium and other harmful substances, in full compliance with the requirements of environmental protection.

7. Battery allows you to enjoy life, wonderful moment.

8. Factory directly offer, competitive price.

9. One year warranty.

Proper use 

1. Upon initial use (or after a prolonged storage period) the battery may require two to three charge/discharge cycles before achieving maximum capacity.

2. If the battery will not be used for a month or longer, it’s recommended that it is removed from the device and stored in a cool, dry, clean place at about a 50% capacity level.

3. Leaving a battery in a laptop while using an electrical outlet for long periods of time will keep the battery in a constant stake of charging up and that will reduce the life cycle of the battery.