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Black rectangular lithium-ion laptop battery with label showing M5Y1K 14.8V 40Wh

PISKEKAT

PISKEKAT 40Wh 14.8V M5Y1K laptop battery

SKU CH-32EG-7KXMT

Replacement lithium-ion battery with 40 Wh capacity and 14.8 V output fits Dell Inspiron 14, 15 and 17 models

  • Battery TypeLaptop Batteries
  • 40 Wh capacity powers compatible Dell Inspiron models
  • 8 V lithium-ion chemistry matches original specifications
  • Four-cell design fits 15, 14 and 17-inch chassis
  • Replaces Dell part numbers including GXVJ3, HD4J0 and WKRJ2
  • Brand-new unit supplied as a single battery

Replacement for Dell Inspiron and Vostro

This 40Wh lithium-ion battery replaces Dell part numbers including M5Y1K, P51F, VN3N0, WKRJ2, GXVJ3 and HD4J0. It fits Inspiron 14, 15 and 17 models across the 3000 and 5000 series as well as Vostro 14 3458 and 3558 laptops. The four-cell pack delivers 14.8V and ships in new condition.

Upgrade when the original pack fails

Swap this unit in when the factory battery no longer holds charge or triggers a capacity warning in the BIOS. The jump is worth it if runtime has dropped below usable levels or the system throttles because the old pack cannot sustain load. It restores the original 40Wh rating without requiring a higher-capacity chassis modification.

Fits existing bay with no extra hardware

The pack matches the OEM footprint of roughly 10.6 by 1.5 by 0.75 inches and weighs about nine ounces, so it seats in the same battery bay without adapters. No additional cabling or firmware steps are needed beyond the normal Dell battery calibration routine. It frees the user from tethering to an AC adapter during mobile work.

Highlights

  • 40 Wh capacity powers compatible Dell Inspiron models
  • 8 V lithium-ion chemistry matches original specifications
  • Four-cell design fits 15, 14 and 17-inch chassis
  • Replaces Dell part numbers including GXVJ3, HD4J0 and WKRJ2
  • Brand-new unit supplied as a single battery

Specifications

Battery TypeLaptop Batteries

Questions about this item

What are the exact dimensions of the 10.6 x 1.5 x 0.75 inch M5Y1K battery for my Dell Inspiron 15 5558?

The pack measures 10.6 inches long, 1.5 inches wide and 0.75 inch thick, matching the original Dell M5Y1K footprint.

Which screw or latch secures the 4-cell 14.8 V battery in a Dell Inspiron 14 3458, and what step is often missed?

Most Inspiron 14 3000 models use a single Phillips screw on the bottom cover; the step often missed is disconnecting the internal cable before lifting the old pack.

How many charge cycles can the 40 Wh lithium-ion M5Y1K deliver before it needs replacing?

A 40 Wh lithium-ion pack typically delivers 300–500 full cycles before runtime falls enough to warrant replacement.

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