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Rectangular black lithium-ion laptop battery pack with label showing 40Wh 14.8V

TAURKENAM

TAURKENAM XCMRD MR90Y 40Wh 14.8V 4-Cell Laptop Battery

SKU CH-81KT-Z6AF0

40 Wh 14.8 V lithium-ion pack replaces Dell Inspiron 14R5437, 15R5537, 173737 and 17 5748 batteries

  • Battery TypeLithium-Ion
  • 40 Wh capacity powers Dell Inspiron models listed
  • 8 V lithium-ion chemistry matches original specifications
  • Four-cell design fits 14R 5437 15R 5537 17 3737 17 5748
  • A-grade cells deliver fast charging and long runtime
  • CE FCC RoHS certified for safety compliance

Compatible Dell Inspiron models

This replacement battery fits Dell Inspiron 14R5437 15R5537 173737 17 5748 5521 3521 5537 laptops. It is a new lithium-ion pack rated at 40Wh and 14.8V with four cells. The part matches original numbers XCMRD MR90Y V8VNT 312-1387 vr7hm x29kd xrdw2 ygmtn g35k4 6hy59 6k73m 6xh00 pvj7j 4wy7c. Buyers with other Dell series or non-listed models cannot use this pack.

Thermals noise and power draw

Lithium-ion chemistry runs cool during normal charge and discharge cycles with no moving parts to create noise. The 40Wh capacity at 14.8V delivers standard runtime for the supported Inspiron chassis. CE FCC and RoHS certifications confirm compliance with safety and emissions standards. No active cooling or fan is required.

Capacity decides fit

The single specification that determines compatibility is the 40Wh 14.8V four-cell rating matching the original XCMRD MR90Y part. If your service tag calls for a different watt-hour value voltage or cell count this battery will not fit or charge correctly. Verify the exact part number before ordering.

Highlights

  • 40 Wh capacity powers Dell Inspiron models listed
  • 8 V lithium-ion chemistry matches original specifications
  • Four-cell design fits 14R 5437 15R 5537 17 3737 17 5748
  • A-grade cells deliver fast charging and long runtime
  • CE FCC RoHS certified for safety compliance

Specifications

Battery TypeLithium-Ion

Questions about this item

How do I install the MR90Y battery in my Inspiron 15 5537 and what step is often missed?

Power off, unplug the AC adapter, slide the release latch, swap the pack, then press until the latch clicks; the missed step is forgetting to reconnect the AC adapter for the first full charge.

What replacement will the XCMRD pack need after extended use?

The lithium-ion cells degrade over time; when runtime falls below your needs, replace the entire 40Wh pack.

What limit appears first during a long work session on this 14.8V battery?

The 40Wh capacity sets the runtime ceiling; sustained load will drain the pack until the laptop initiates low-power shutdown.

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