10.8V 5200mah XCMRD Laptop Battery for Dell Inspir...

Product Specification:

• Model Number: 3521
• Battery Type: Li-Ion, Rechargeable Batteries
• Voltage: 10.8V
• Capacity: 5200mah
• Cells:6-Cell
• Grade A+ cells
• Multiple protection
• Easy & Quick Installation
• Longer Battery Life
• Higher Capacity Cells
• Smarter Battery Management Chip
• Long Service Life
• Our battery is 100% compatible with the original battery and meets CE/FCC/ROHS/UL-certified standards. It is 100% new from the manufacturer and can support up to 1000 recharge cycles over the life of the battery
• Power Interface: Gold-plated connector points to ensure current transport excellently and serve stably.
• Enclosure: The enclosure is made of ABS + PC high-quality material, it has a high temperature-resistant function to protect your laptop from overheating
• Battery Buckle: The battery buckle is closely connected to the laptop, and the metal interface is stably powered 

Protection Features: 

1. Over Current Protection
2. Over Voltage Protection
3. Over Charge Protection
4. Overheat Protection
5. Short Circuit Protection
6. Featuring overcharging
7. ESD Protection
8. Intelligent Protection
9. Electromagnetic Protection

We guarantee:

1. All our products are A+ grade.
2. We are a factory, we can guarantee the quality of our products.
3. Our company has professional technical engineers who can help you solve any problems you encounter.
4. All products are strictly tested by our department before shipment.
5. Please contact us for free time, we will try our best to satisfy you.

Compatible Part Numbers:
312-139
312-1390
49VTP
68DTP
6KP1N
8TT5W
FW1MN
MK1R0
PVJ7J
V8VNT
X29KD
YGMTN
24DRM
4DMNG
6HY59
6XH00
9K1VP
G019Y
MR90Y
T1G4M
VR7HM
XCMRD
312-1387
312-1433
4WY7C
6K73M
8RT13
DJ9W6
G35K4
N121Y
V1YJ7
W6XNM
XRDW2
0MF69
MR90Y
MK1R0

Compatible Models:
Dell Inspiron 14-3421 Series
Dell Inspiron 14-3437 Series
For Inspiron 14-3442 Series
Dell Inspiron 14-5421 Series
Dell Inspiron 14-N3421 Series
Dell Inspiron 14-N5421 Series
Dell Inspiron 14R-3421 Series
Dell Inspiron 14R-5437 Series
Dell Inspiron 15-3521 Series
Dell Inspiron 15-3537 Series
Dell Inspiron 15-3542 Series
Dell Inspiron 15-3543 Series
Dell Inspiron 15R-5521 Series
Dell Inspiron 15R-5537 Series
Dell Inspiron 15R-N3521 Series
Dell Inspiron 15R-N5521 Series
Dell Inspiron 15R-N5537 Series
Dell Inspiron 17-3721 Series
Dell Inspiron 17-3737 Series
Dell Inspiron 17R-5737 Series
Dell Inspiron 17R-5748 Series
Dell Inspiron 17R-N3721 Series
Dell Inspiron 17R-N3737 Series
Dell Inspiron 17R-N5721 Series
Dell Inspiron 17R-N5737 Series
Dell Latitude 14 3000 Series
Dell Latitude 15 3000 Series
Dell Latitude 3440 Series
Dell Latitude 3540 Series
Dell Latitude E3440 Series
Dell Latitude E3540 Series
Dell Vostro 2421 Series
Dell Vostro 2521 Series
For Inspiron 3443
For Inspiron 3543
For Inspiron 7447

【IMPORTANT】: Press [ Ctrl+F ] to find the laptop models. The model list is not complete. if you can’t find your laptop model, please ASK a QUESTION or CONTACT US.

We are a professional manufacturer in this field of laptop batteries and chargers. We are committed to providing high quality, competitive cost, and superior performance battery and the best service to customers. If you have any questions or need help, please feel free to contact us.

Install A New Battery:

1. You need to turn off your laptop and disconnect the power.
2. Remove the old battery, carefully install the new battery in the battery case, and connect the wiring of the new battery.
3. If you don’t understand the above steps, you can search for the video about laptop battery installation on YouTube. Maybe it will help you.

Laptop Maintenance Tips:

1. New battery: For using a new battery, you’d better try a few cycles of discharging to 5%. then charging up to 95%. So that it can be activated completely
2. Overuse: Do not always run out of a battery to 0%, this would make it or usage life.
3. Charging sequence: When charging, first install the battery, then turn on the power. when fully charged, first cut off the power, then pull the power plug.
4. Long-term storage: Please store the unused battery fully charged. (Charge it once a month.) Do not store at low power to prevent reducing the lifespan of a battery
5. Charger: Do not replace the laptop adapter casually. If the original adapter cannot be applied due to malfunction or damage, please replace the models so as not to reduce the service life of the battery due to incompatibility.