Rechargeable Battery XCMR Dell Inspiron 14 3421 14R 5421 15 3521 15R 5521 MR90Y

 Dell Laptop Battery for Inspiron 14 3421, 14 N3421, 15 3521, 17 3721, Vostro 2421, 2521, Latitude 3540, 3440


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 Dell Laptop Battery for Inspiron 14 3421, 14 N3421, 15 3521, 17 3721, Vostro 2421, 2521, Latitude 3540, 3440

*Please double check your old battery against our pictures, mainly unique edges and connection points*

Compatible Laptop Brand



Brand New

Cell Number

6 Cells


5200 mAh

Output Voltage

10.8V / 11.1V



Cell Technology

Li-Ion Battery


1 Year from purchase

Compatible Battery Part Number (Use Ctrl+F to search)

MR90Y  N121Y PVJ7J  312-1387 G019Y     0MF69 6HY59 4DMNG       8RT13 8TT5W 68DTP 6XH00     9K1VP VR7HM V1YJ7 W6XNM   312-1390 6K73M YGMTN MK1R0 312-1392     49VTP

Compatible Laptop Model (Use Ctrl+F to search)

Vostro 2421 Vostro 2521 

Inspiron 14 (3421 3437)  Inspiron 14R (5421 5437) 

Inspiron 15 (3521 3537) Inspiron 15R (5521 5537) 

Inspiron 17 (3721 3737) Inspiron 17R (5721 5737) 

Dell Inspiron 14(Ins14VD-2306) 

Dell Inspiron 14(Ins14VD-2308) 

Dell Inspiron 14(Ins14VD-2316) 

Dell Inspiron 14(Ins14VD-2408) 

Dell Inspiron 14(Ins14VD-2418)

Dell Inspiron 14(Ins14VD-2518) 

Dell Inspiron 14(Ins14VD-A516) 

Ins14vr  Ins14v-A316

Proper Battery Usage

  • For first time usage, please charge the battery for 3 to 4 hours before using the laptop – usually it requires 2 to 3 charge/ discharge cycles before the battery achieves maximum capacity.

  • Best practice is to unplug the charger when the battery is full. And plug in charger when battery reaches 20% to 30%.

  • Usage time depends on how you are using your laptop. eg screen brightness, number of applications running etc. Average time is around 2 to 3 hours of continuous usage.

  • Careful not to short-circuit the battery by placing the terminals in contact with other metal objects.


  • Sent from Melbourne, Australia.

  • 1 business day handling time.

  • If customer provided the wrong address on order, they may need to pay an extra charge to change address.

  • If no one was home to receive the parcel, please contact your local courier to pickup or arrange re-delivery within 2 weeks. Parcel will be returned to us after 2 weeks. If that occurs, customer will pay a resend postage. 

  • The estimated arrival date is under best conditions. The actual delivery time may be affected by various factors, eg Holiday peaks etc.


  • If product is damaged or faulty upon arrival, you can return for replacement. 

  • If you change your mind, you can return for replacement or partial refund. Customer will cover return postage and resend or original postage. 

  • If you are returning for a refund 30 days after purchase, there is a 15% handling fee.


nbb-dell 5421/ MR90Y


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