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

DELL

DELL 14.8V 40Wh M5Y1K Laptop Battery for Vostro 3458 3459 3558 3559 Latitude 3460 3560

SKU CH-HF77-6KCY3

A 14.8 V, 40 Wh lithium-ion battery for Dell Vostro 3458, 3459, 3558, 3559 and Latitude 3460, 3560 laptops

  • CompatibilityCompatible with Dell Vostro 3458 3459 3558 3559 Latitude 346
  • Battery TypeLithium-Ion
  • 40Wh capacity powers Dell Vostro and Latitude models through extended sessions
  • 8V lithium-ion chemistry matches original voltage for stable operation
  • Four premium cells deliver reliable energy density and consistent output
  • CE and RoHS certified for safety and environmental compliance
  • 100% compatible with Vostro 3458 3459 3558 3559 and Latitude 3460 3560

Direct replacement for Vostro and Latitude

This 14.8 V 40 Wh lithium-ion battery fits Dell Vostro 3458 3459 3558 3559 and Latitude 3460 3560 models. It uses a four-cell design to restore full mobile runtime for office work, study or travel. The unit is supplied new and carries CE and RoHS certification.

Swaps out a worn original pack

It replaces a factory battery that no longer holds charge or that shuts down under load. The upgrade is worth it when the laptop must run unplugged for meetings, commutes or classroom sessions and the old pack delivers only a fraction of its rated capacity.

Verify the exact part before ordering

Dell uses two physically different batteries for these model families and they are not interchangeable. Compare the shape, connector position and label details on your existing pack against the product photos to confirm a correct match.

Highlights

  • 40Wh capacity powers Dell Vostro and Latitude models through extended sessions
  • 8V lithium-ion chemistry matches original voltage for stable operation
  • Four premium cells deliver reliable energy density and consistent output
  • CE and RoHS certified for safety and environmental compliance
  • 100% compatible with Vostro 3458 3459 3558 3559 and Latitude 3460 3560

Specifications

CompatibilityCompatible with Dell Vostro 3458 3459 3558 3559 Latitude 3460 3560
Battery TypeLithium-Ion

Questions about this item

Will the M5Y1K battery fit inside a Dell Vostro 3559 chassis?

The M5Y1K is listed as compatible with the Vostro 3559; compare the physical shape and connector orientation with your original battery before installing.

What is the correct order for installing the 4-cell 14.8V pack?

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

When should the 40Wh lithium-ion unit be replaced?

Replace the pack when the laptop no longer holds a useful charge or the operating system reports a significant capacity loss.

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