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Item specifics
  • Compatible Brand: DELL
  • Package: Yes
  • Battery Capacity: 4001 - 5000 MAh
  • Model Number: 3521 6 cell
  • Battery Voltage: 11.1V or 10.8V
  • Products Status: Stock
  • Type: Li-Ion
  • Marked capacity: 5200mAh
  • Real capacity: 4400mAh
Product Description

Dear customer:

  • Our store sells a variety of batteries, have opened the oversea warehouse in RU, US, UK, and AUS, as well as can transport to most countries in the world.


  • Due to the particularity of the battery, some countries’ buyers only can choose Seller’s Shipping Method to buy our product (you can search the tracking information on, and we promise that the goods will be arrived on time.)


  • If you have made order about our goods, you should accept our way of logistics, if you mind,do not buy it, please.



How to order battery?

  • Use "Ctrl+F" to search the key words from the website
  • The best way to find the battery you need is searching by the original battery code, and compare the picture of the battery, check the interfac
  • If you still can not make sure the battery, please contact us.



  • Most of the high capacity batteries (6600mAh, 8800mAh) looks uneven.
  • The photos are for reference only, and the sample is subject to the real product which you will receive.
  • Please take care your battery, the recharge cycle is based on how to use the battery.
  • Battery 3.6v and 3.7V, 7.2V and 7.4V, 10.8V and 11.1V, 14.4V and 14.8V are just different parameters, the actual effect is the same.


Postal code 35-, 07-, 38- and Balearen, Canary Islands, Las Palmas, Santa Cruz de Tenerife in Spain cannot be send.

Postal code 97- and 98- in France cannot be send.


For the long distance between warehouse and NVOCC we need some time for delivery. if you haven\'t searched the info of the goods, do not worry, just contact us immediately, we will spare no effect to help you solve the problem. your satisfaction is what we always persue, so please don\'t open a dispute rashly.Thanks for your trust.


This Laptop Battery can replace the following part numbers:

For Dell

XRDW2              YGMTN                 VR7HM                W6XNM 
X29KD                T1G4M                  V1YJ7                   V8VNT 
MR90Y                N121Y                   PVJ7J                   G019Y 
G35K4                 MK1R0                 9K1VP                  DJ9W6 
FW1MN               6XH00                  8RT13                  8TT5W 
6HY59                 6K73M                  6KP1N                  4DMNG 
4WY7C               68DTP                 312-1392               312-1433 
49VTP                24DRM                 312-1387               312-1390      0MF69 


This Laptop Battery is also compatible with the following models:

For Dell 
For VOSTRO 2521
For VOSTRO 2421
For Inspiron 17R 5721 
For Inspiron 17 3721
For Inspiron 15R 5521
For Inspiron 15 3521 
Fo rInspiron 14R 5421
For Inspiron14 3421 

Packaging Details
  • Unit Type: piece
  • Package Weight: 0.375kg (0.83lb.)
  • Package Size: 50cm x 40cm x 20cm (19.69in x 15.75in x 7.87in)
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Packaging Details
  • Unit Type: piece
  • Package Weight: 0.375kg (0.83lb.)
  • Package Size: 50cm x 40cm x 20cm (19.69in x 15.75in x 7.87in)
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