laptop battery 11.1V 4400mah For Dell D820 D531 D531N Series

Product Name

Laptop Battery for Dell D820 Series

Technical Specifications

Cell Type: Li-ion

Voltage:11.1V

Capacity: 4400MAH

Cells: 6 cells

Cell level: Grade A Cell

Color: Metallic silver

Weight: 308.5g

Dimension: 21*82*2 cm

Weight of box: 55.5g

Dimension of box: 24.5*93*47 cm

Rechargeable: Yes

Package: Individual brown neutral box

Compatible battery codes

(Compatible part no.)

310-9122, 310-9123, 312-0393, 312-0394, 312-0401, 312-0402, 312-0538, 451-10308, 451-10309, 451-10326, 451-10327, CF623, CF704, CF711, DF192, DF230, DF249, FF232, GX047, MM165, XD736, XD739, YD623, YD624, YD626

Fits laptop models

DELL Latitude D531, D531N, D820, D830, Precision M65, Precision M4300, Precision M4300 Mobile Workstation

Product Advantages

1. 100% OEM compatible

2. Factory directly offer, competitive price

3. Strictly control for quality assurance

4. RMA: 2% made of Chinese Grade A cells

5. One year warranty

6. Over voltage / Over current / Over temperature / Short circuit protection

7.Enviroment: Operating temperature 0 to 40°C                     Storage temperature -20 to 85 °C                     Storage humidity 5 % to 95%

8.Housing:ABS+PS fireproofing

9.With CE/ROHS/FCC

10.Guarantee to meet or exceed OEM specifications, no memory  

Win-Win Advantages

1. Professional laptop battery manufactory with 7 years experiences

2. Strong R&D department to design new models

3. Good pre-sale and after-sales service

4. Over 17 brands and 400 models for your option

5. Best technical support from our R&D department

Using tips for DELL D820

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.