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Black rectangular 4-cell lithium-ion laptop battery

FOCUSTEC

FOCUSTEC XCMRD 40Wh 14.8V 4-cell laptop battery for Dell Inspiron 14 15 17 Latitude 3440 3540 Vostro

SKU CH-VRRR-AKHB2

Replacement lithium-ion pack rated at 14.8 V and 40 Wh with four cells for compatible Dell Inspiron, Latitude and Vostro laptops

  • Battery TypeLithium-Ion
  • Replaces Dell XCMRD, P28F, FW1MN and 40+ other part numbers
  • Powers Inspiron 14, 15, 17 and Latitude 3440, 3540 series laptops
  • Supports Vostro 3441, 3546, 2421, 2521 and compatible models
  • 40 Wh lithium-ion capacity delivers extended runtime per charge
  • Built-in circuit protection safeguards against overcharge and short circuits

Compatible 40Wh lithium-ion battery

This 14.8V four-cell battery replaces part numbers XCMRD P28F 4WY7C FW1MN and many others. It fits Dell Inspiron 14 15 17 Latitude 3440 3540 and Vostro 3441 3546 models listed in the compatibility data. The pack uses grade A cells and includes built-in circuit protection.

Check your original part number

Before ordering match the code on your old battery against the supported list such as 312-1390 312-1387 312-1433 312-1392 451-12107 451-12108. Confirm the laptop model appears in the supported series including Inspiron 3542 3543 5521 5537 and Latitude E3440 E3540. Voltage must be 14.8V and capacity 40Wh.

No extra accessories or software included

The package contains only the replacement battery itself. There are no installation tools cables or driver discs supplied. The built-in protection circuit handles charge management without additional software. Buyers who need a screwdriver set or an external charger must source those separately.

Highlights

  • Replaces Dell XCMRD, P28F, FW1MN and 40+ other part numbers
  • Powers Inspiron 14, 15, 17 and Latitude 3440, 3540 series laptops
  • Supports Vostro 3441, 3546, 2421, 2521 and compatible models
  • 40 Wh lithium-ion capacity delivers extended runtime per charge
  • Built-in circuit protection safeguards against overcharge and short circuits

Specifications

Battery TypeLithium-Ion

Questions about this item

What comes in the box and is there anything else I need to buy to install it?

The box contains the 40Wh 14.8V 4-cell lithium-ion battery only; no tools, screws or adapters are included, so you may need a small Phillips screwdriver to open the laptop's battery compartment.

How do I know which of the listed part numbers matches my laptop?

Check the label on your original battery for any of the listed part numbers such as XCMRD, P28F, 4WY7C, FW1MN, 312-1390, 312-1387, 312-1433, 312-1392, 451-12107, 451-12108, M431R, M531R, M731R, P26E, P17E or P40F; a match confirms compatibility.

What does the 40Wh rating mean for real-world use in my Dell?

A 40Wh capacity at 14.8V typically delivers several hours of mixed office work on a compatible Inspiron 14, 15 or 17, Latitude 3440, 3540, E3440, E3540 or Vostro 2421, 2521 series before needing a recharge.

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