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Rectangular black lithium-polymer laptop battery with connector and label

PISKEKAT

PISKEKAT M5Y1K 14.8V 40Wh laptop battery

SKU CH-MDJ4-2BT7F

A 14.8 V 40 Wh lithium-polymer replacement battery compatible with numerous Dell Inspiron, Latitude and Vostro models

  • Battery TypeLaptop Batteries
  • Lithium-polymer chemistry provides stable 14.8V output for reliable Dell performance
  • 40Wh capacity delivers extended runtime across Inspiron 15 3000 and 5000 series
  • Four-cell design balances power density with lightweight portability for daily use
  • Replaces multiple Dell part numbers including K185W and GXVJ3 for broad compatibility
  • Manufacturer backs the battery with twelve-month warranty for added confidence

Compatible Dell models

This lithium-polymer battery replaces part numbers M5Y1K, K185W, GXVJ3, HD4J0, WKRJ2, VN3N0, 1KFH3, 991XP and 451-BBMG. It fits Dell Inspiron 15 3000, Inspiron 15 5000, Inspiron 14, Inspiron 17, Latitude 3460, 3470, 3560, 3570 and Vostro 3459, 3468, 3559, 3562, 3572, 3578 series laptops. Check the original battery label before ordering to confirm compatibility.

Sustained discharge behaviour

The 40Wh, 14.8V, 4-cell pack delivers a steady 2600mAh capacity during typical workloads such as web browsing, document editing and video playback. Lithium-polymer chemistry maintains stable voltage across the discharge curve, so runtime remains consistent until the low-battery threshold triggers system sleep.

Practical limits of the form factor

As a direct-fit replacement, the battery occupies the original chassis bay and connects through the stock Dell connector. It cannot be used in laptops that require a different voltage, cell count or physical footprint. Buyers needing higher capacity or a different voltage must select a model designed for their specific chassis.

Highlights

  • Lithium-polymer chemistry provides stable 14.8V output for reliable Dell performance
  • 40Wh capacity delivers extended runtime across Inspiron 15 3000 and 5000 series
  • Four-cell design balances power density with lightweight portability for daily use
  • Replaces multiple Dell part numbers including K185W and GXVJ3 for broad compatibility
  • Manufacturer backs the battery with twelve-month warranty for added confidence

Specifications

Battery TypeLaptop Batteries

Questions about this item

Does the 14.8 V 40 Wh lithium-polymer pack run hot or draw extra power during all-day use?

The battery operates at its rated 14.8 V and 40 Wh capacity; normal discharge does not generate noticeable heat or increase system power draw beyond the laptop's own consumption.

My Dell Inspiron 15 5559 shows part number K185W on the old battery — will this M5Y1K unit fit without any other parts?

Yes, the M5Y1K replaces K185W, GXVJ3, HD4J0, WKRJ2, VN3N0, 1KFH3, 991XP and 451-BBMG directly; no extra cables or adapters are required.

I also keep a Latitude 3470 as a backup — does the 4-cell 2600 mAh design work in that model too?

The Latitude 3470 is listed among the compatible models, so the same 4-cell 2600 mAh pack will power it without modification.

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