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Techie compatible for Dell Inspiron 15 3521, Inspiron 17R 5721, Latitude 3440, Vostro 3445 laptop battery (4 Cell).

(47 customer reviews)


SKU 3521 / 5421 4C Categories ,
  • Capacity: 2200 mAh | Voltage: 14.8 V | Number of cells: 4 | 12-month warranty.
  • Laptop battery approved by Bureau of Indian Standards.
  • Quality product – 100% compatible with your laptop, identical size, including all electronic safety measures.
  • Our batteries are designed for maximum safety: Overheat, Short-circuit, and overload protection, together with CE/RoHS certifications.

In stock

Return : 15 Days

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with COD & reliable return policy

Hassle-free replacement

15-days easy replacement & refund


Techie compatible for Dell Inspiron 15 3521, Inspiron 17R 5721, Latitude 3440, Vostro 3445 laptop battery.

Battery Ratings: Li-ion, Capacity: 2200mAh, Cell: 4, Voltage: 14.8V

Compatible part numbers (p/ns):

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

Compatible Laptop Model:

  • Dell Inspiron 14 3421
  • Dell Inspiron 14R 5421
  • Dell Inspiron 15 3521
  • Dell Inspiron 15R 5521
  • Dell Inspiron 17 3721
  • Dell Inspiron 17R 5721
  • Dell Latitude 2421
  • Dell Latitude 2521
  • Dell Latitude 3440
  • Dell Latitude 3540
  • Dell Latitude 3721
  • Dell Latitude 3737
  • Dell Latitude 5437
  • Dell Latitude 5537
  • Dell Latitude 5737
  • Dell Vostro 2421
  • Dell Vostro 2521
  • Dell Vostro 3445
  • Dell Vostro 3446
  • Dell Vostro 3546
  • Dell Inspiron 3442
  • Dell Inspiron 15 3542
  • Dell inspirion 15 3543

NOTE: Please check above battery part number (P/N) from the label of existing battery. If your laptop’s battery part number is not listed here, feel free to contact us at 8088242424 our team will help you to decide which battery will be suitable for your laptop.

Additional information

2200 mAh



Number of cells


Cells technology


Over charge protection


Over discharge protection





12 months

Reviews (47)

47 reviews for Techie compatible for Dell Inspiron 15 3521, Inspiron 17R 5721, Latitude 3440, Vostro 3445 laptop battery (4 Cell).

Based on 47 reviews
5 star
4 star
3 star
2 star
1 star
Showing 39 of 47 reviews (5 star). See all 47 reviews
  1. Dr. Sumit (verified owner)

    All good so far, well packed, fits like the original and is charging fine…

  2. Deekshant sharma (verified owner)

    Working Well

  3. TRIBHUVAN SONI (verified owner)

    Really impressed with this battery .

  4. VENKATA THOTAKURA (verified owner)

    Reasonably priced. Good packing

  5. Abhishek P. (verified owner)

    A good price and quick delivery and great customer support.

  6. raghu (verified owner)

    Its working fine without any issues.

  7. NIKHIL (verified owner)

    Good service… received battery in 4 days ..thanks and regards, NIKHIL

  8. Shyam Bhatt (verified owner)

    Good Quality

  9. RajRajesh

    Super perfomance.

  10. Rajesh S. (verified owner)

    Quality Product.Beyond Expectation.

  11. Suyash Baradkar (verified owner)

    Good Service,fast delivery,genuine Product.Overall Sartisfied

  12. SOUMEN GHOSH (verified owner)

    Excellent everything, product quality, delivery, communication, customer support all are okey

  13. Jagadeeshreddy (verified owner)

    Product is working fine…well delivered.. thankyou..

  14. Rishi Ranjan (verified owner)

    Good one

  15. Ayush (verified owner)

    Working well. Battery is 32wh instead of original 40wh. But worth it for the price.

  16. dhakan v. (verified owner)


  17. Swaroop Voleti (verified owner)

    Initially had a doubt on Techie but I gave a try, guess what the product is working amazing but product is chinese.

  18. SIMUL DEY (verified owner)

    Fast & Prompt service. thanks a lot

  19. Aalap Patel (verified owner)

    It really helped me, I was in need of it as my laptop stopped working. If somehow I had lost it then it would have cost a New Laptop. Thanks Techie Store!

  20. Praveen Patil (verified owner)

    Really the Techie battery was awesome performance it’s very light weight nice.
    Thank you so much for Techie store!!

    Uploaded image(s):

    Image #1 from Praveen Patil
  21. Pankaj Mishra (verified owner)

    Till now its good , its been one week

  22. Santhosh Reddy (verified owner)


  23. Syed

    Very Professional service. The battery i had ordered had some charging issue and i raised a return, same day part was picked and inspection was carried out and a new batter was dispatched. The new battery is working fine. At first i was little worried but you guys have gained my confidence. Kudos to the team. Thanks.

  24. Anonymous (verified owner)

    Got it at 1529rs on republic day sale. Really good battery. It give me approx 2hours of backup.

  25. Ruman Mahato (verified owner)

    It was good experience, the laptop battery was excellent and it was a good deal with this price, this was a replacement battery for my Dell Inspiron 15R 5522 model and there was no issues in fitting it. On 100% charge it was showing a backup time of 2hrs and 25 mins. Over all a good deal with this price.

    Uploaded image(s):

    Image #1 from Ruman Mahato
    Image #2 from Ruman Mahato
    Image #3 from Ruman Mahato
    Image #4 from Ruman Mahato
  26. Kishor Athalye (verified owner)

    Excellent service

  27. JAIVIR SINGH (verified owner)


  28. Akhil Ravula (verified owner)

    Good as expected

  29. Kishor (verified owner)

    Completely compatible.

  30. Shahid Quamar (verified owner)

    It will be too early to say anything about back up however I’d like to say thanks to techie india to save my money to purchase a new laptop. Customer service is superb.

  31. crrajeshkaimal (verified owner)

    This is the first time I tried to order a product outside Amazon. Let me tell you these guys are genuine and the shipment was smooth, packing was excellent and the compatible battery was perfect for the price.

    Just to see if they are genuine I took cash on delivery paying extra 100 Rs, but still, it is worth it. Keep up the good job team. 5-star rating for you guys.

  32. Rajesh (verified owner)

    Battery fits the laptop perfectly. Quick delivery even during the Covid 19 pandemic. Appreciate your excellent service!

  33. dhondi rawool (verified owner)

    Bettery is working perfectly fine thax
    Stay safe❤️

  34. Kaushlendra kumar (verified owner)

    No problems in delivery.Good quality product come with protection packaging.

  35. Nirmal Kumar (verified owner)


  36. Darshan Dave (verified owner)

    best deal…very good battery….excellent instructions…go for it

  37. akbar1099

    Charging is good better than what i expected

  38. Sandeep Chukkala (verified owner)

    Product and packaging are good

  39. K.UMA MAHESHWARA RAO (verified owner)

    Very very Good

    Uploaded image(s):

    Image #1 from K.UMA MAHESHWARA RAO
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Frequently Asked Questions

Techie tries to ship your orders on the same day. After the order is confirmed the tracking link is sent on the registered email which includes the live location of the package and the estimate delivery time.


Your satisfaction is guaranteed when you order from Techie! If you decide not to use a product or find an issue in products, simply generate a return/replacement request within 15 days of delivery to get a replacement or refund.


We offer multiple online payment methods, including:

1. Credit Card and Debit Card
2. Net Banking
3. Wallet (Paytm, Phone pe, Mobikwik, FreeCharge, Airtel Money, Ola Money, Jio Money and PayZapp)
4. UPI
5. Cash on Delivery 

We do offer cash on delivery with extra COD fees of Rs.100 (Non-Refundable*)

Techie warrants our products against defects in materials and working for the warranty period from the date of purchase. The warranty period is for 1-year on laptop battery, laptop charger, barcode and power bank.


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3521 / 5421 4 cell Battery

Techie compatible for Dell Inspiron 15 3521, Inspiron 17R 5721, Latitude 3440, Vostro 3445 laptop battery (4 Cell).


In stock

Return : 15 Days

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