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Black rectangular lithium-ion laptop battery with connector pins

FOCUSTEC

FOCUSTEC M5Y1K 40Wh 14.8V laptop battery for Dell Inspiron 14 15 17 3000 5000 series

SKU CH-Q92F-HQTNP

A 40Wh lithium-ion replacement battery with 14.8V output and 2600mAh capacity fits Dell Inspiron 14, 15 and 17 series 3000 and 5000 models

  • Battery typeLithium-Ion
  • 40Wh capacity powers Dell Inspiron 14 15 17 3000 5000 series laptops
  • 8V lithium-ion chemistry matches original voltage for stable operation
  • 4-cell design delivers up to 500 recharge cycles for long service life
  • Overheat short-circuit and overload protections with UL CE FCC RoHS certifications ensure safe use
  • Replaces Dell part numbers M5Y1K GXVJ3 6YFVW HD4J0 P47F P63F P51F

Compatible Dell Laptops

This FOCUSTEC M5Y1K battery replaces the original power pack in a wide range of Dell Inspiron 14, 15 and 17 models across the 3000 and 5000 series, plus selected Vostro and Latitude 3570 units. It is aimed at owners of those specific laptops who need a fresh 40 Wh lithium-ion cell to restore full mobility.

Installation Requirements

The pack fits directly into the existing battery bay without extra cables or adapters and uses the laptop's native charging circuit. It frees the user from a worn-out cell that no longer holds charge, but it cannot add capacity beyond the original 40 Wh design or work with models outside the listed compatibility list.

Sustained Use Behaviour

Rated at 14.8 V and 2600 mAh, the four-cell lithium-ion unit delivers consistent voltage across long sessions and is certified to UL, CE, FCC and RoHS standards with overheat, short-circuit and overload protection. The supplier rates it for 500-plus recharge cycles, so capacity loss under daily charging remains gradual rather than sudden.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $25.99
Cheaper than about 60% of the 27,790 comparable items (median $30.99).

Specifications

Power
Battery typeLithium-Ion

Questions about this item

How many recharge cycles does the 40Wh M5Y1K battery support before capacity fades?

The battery is rated for up to 500+ recharge cycles over its lifespan.

Does the 14.8V M5Y1K battery include protection against overheating during all-day use?

Yes, it has overheat, short-circuit and overload protections plus UL, CE, FCC and RoHS certifications.

Which Dell laptop models must the buyer already own for this M5Y1K 40Wh battery to fit?

It fits Inspiron 14, 15, 17 3000 and 5000 series models such as 3451, 3558, 3567, 5559, 5758 and Vostro 3458, 3559.

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