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Rectangular black lithium-polymer laptop battery with label showing model numbers

FOCUSTEC

FOCUSTEC M5Y1K 14.8V 40Wh laptop battery

SKU CH-X4EE-C2PGG

Replaces Dell Inspiron, Latitude and Vostro batteries with a 14.8V 40Wh lithium-polymer pack

  • Battery TypeLithium-Ion
  • Lithium-polymer chemistry delivers 14.8V 40Wh capacity
  • 4-cell design provides 2600mAh runtime for daily tasks
  • Replaces Dell part numbers K185W GXVJ3 M5Y1K HD4J0
  • Compatible with Inspiron 15 3000 5000 Latitude Vostro models
  • New condition ensures full performance from first charge

Compatible Dell models

This replacement battery fits a wide range of Dell Inspiron 14, 15 and 17 laptops as well as selected Latitude and Vostro models. It is built for owners of those specific machines who need a direct swap for the original pack. Buyers with other Dell series or non-Dell laptops cannot use this unit.

Lithium-polymer construction

The pack uses a 4-cell lithium-polymer design rated at 14.8V and 40Wh. Its physical connector and screw-hole pattern match the original Dell layout, so installation requires only a screwdriver and no adapter cables. The sealed casing prevents electrolyte leaks during daily transport.

Capacity and voltage limits

At 40Wh the battery supplies less runtime than higher-capacity packs offered for the same chassis. The fixed 14.8V output means it cannot power devices that expect a different voltage. Users needing longer unplugged sessions must accept shorter intervals between charges.

Highlights

  • Lithium-polymer chemistry delivers 14.8V 40Wh capacity
  • 4-cell design provides 2600mAh runtime for daily tasks
  • Replaces Dell part numbers K185W GXVJ3 M5Y1K HD4J0
  • Compatible with Inspiron 15 3000 5000 Latitude Vostro models
  • New condition ensures full performance from first charge

Specifications

Battery TypeLithium-Ion

Questions about this item

What voltage does the 14.8V 40Wh lithium-polymer battery deliver to the laptop?

The pack supplies 14.8 volts at 40 watt-hours, matching the original Dell specification for the listed Inspiron, Latitude and Vostro models.

Which Dell chassis designs accept the 4-cell M5Y1K form factor?

The battery fits Inspiron 15 3000 (3555 3558 3559 3565 3567 3568 3573 3576), Inspiron 15 5000 (5551 5552 5555 5558 5559 5566), Inspiron 14 (3451 3458 3462 5451 5455), Inspiron 17 (5755 5758 5759), Latitude 3460 3470 3560 3570 and Vostro 3459 3468 3559 3562 3572 3578.

What is the correct order to connect the 4-cell pack during installation?

Power off the laptop, disconnect the AC adapter, remove the old battery, insert the new pack until the latch clicks, then reconnect AC power and turn the system on.

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