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Rectangular black laptop battery with label showing 40Wh 14.8V

PISKEKAT

PISKEKAT M5Y1K 40Wh 14.8V laptop battery

SKU CH-WXS4-H40EW

New 40 Wh 14.8 V replacement battery for Dell Inspiron 14, 15 and 17 3000 and 5000 series plus Vostro and Latitude models

  • Battery typeLaptop Batteries
  • 40 Wh capacity powers Dell Inspiron 14, 15 and 17 models
  • 8 V output matches original M5Y1K, VN3N0 and YU12005-13001D part numbers
  • CE, FCC and RoHS certified with Grade A cells for safe charging
  • Built-in circuit protection guards against over-voltage, over-current and short circuits
  • 12-month warranty backed by 24 x 7 email support

What this battery replaces

This 40Wh 14.8V unit replaces the original M5Y1K, GXVJ3, HD4J0, K185W, VN3N0 and many other Dell part numbers. It fits Inspiron 14, 15 and 17 models across the 3000 and 5000 series, plus select Vostro and Latitude 3460 or 3560 machines. The swap is worth it when the old pack no longer holds a useful charge or shows swelling. Installation uses the existing bay and connectors with no extra tools.

Capacity and cell quality

The pack delivers 40 watt-hours from Grade A cells that support fast charging and low self-discharge. Built-in circuit protection guards against over-charge, over-discharge and short circuits. CE, FCC and RoHS certifications confirm the safety baseline. The 12-month warranty covers defects, with email support available around the clock.

Behaviour under sustained load

During long work sessions the battery maintains a steady voltage curve thanks to the protection circuitry and cell matching. Heat stays moderate because the chemistry is optimised for typical office and media workloads rather than peak bursts. Capacity fade follows the normal lithium-ion profile, so run-time remains predictable across months of daily cycling.

How it compares

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

Price $28.99
Typical for this category: the median of 27,790 items is $30.99.

Specifications

Power
Battery typeLaptop Batteries

Questions about this item

Does the M5Y1K battery use the same connector and form factor as the original Dell VN3N0 part?

Yes, the M5Y1K replaces the VN3N0 and matches the original connector and shape for the listed Dell models.

What is the common mistake when fitting this 14.8V pack into an Inspiron 15 5000 series?

Forgetting to disconnect the internal ribbon cable before removing the old battery can damage the motherboard header.

After how many charge cycles should I expect the 40Wh capacity to drop noticeably?

Typical lithium-ion cells show measurable wear after 300 to 500 full cycles; plan a replacement around that point.

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