We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular black lithium-ion battery pack with label showing model M5Y1K 14.8V 40Wh

FIRSTWELL

FIRSTWELL M5Y1K 40Wh 14.8V laptop battery

SKU CH-C3DB-GHR1M

A 14.8 V, 40 Wh lithium-ion pack with four cells fits Dell Inspiron 14, 15 and 17 models from the 3000 and 5000 series

  • Battery TypeLaptop Batteries
  • 40Wh capacity keeps Dell Inspiron running longer
  • 8V lithium-ion chemistry matches original power specs
  • 4-cell design fits 15, 14 and 17 inch models
  • Replaces M5Y1K, P51F, VN3N0 and other Dell part numbers
  • 100% new battery includes manual for easy installation

40Wh 14.8V Replacement Battery

This 40Wh lithium-ion battery operates at 14.8V and contains four cells. It is built as a direct replacement for Dell Inspiron 14, 15 and 17 models in the 3000 and 5000 series as well as select Vostro 14 and 3558 units. The pack measures 10.6 by 1.5 by 0.75 inches and ships new with a manual.

Capacity and Runtime

The 40Wh rating and 2600mAh capacity restore the original runtime spec for the listed notebooks. It comfortably powers daily office work, web browsing and video playback. Heavier workloads such as sustained gaming or video rendering will deplete the charge faster than the original higher-capacity packs offered on some configurations.

Upgrading from Worn Packs

This unit replaces Dell part numbers including M5Y1K, P51F, VN3N0, GXVJ3, HD4J0, 453-BBBQ, 451-BBMG and 991XP. The jump is worthwhile when the original battery no longer holds a useful charge or the laptop shuts down unexpectedly on battery power. It is not suited for machines that require a higher-wattage or different-voltage pack.

Highlights

  • 40Wh capacity keeps Dell Inspiron running longer
  • 8V lithium-ion chemistry matches original power specs
  • 4-cell design fits 15, 14 and 17 inch models
  • Replaces M5Y1K, P51F, VN3N0 and other Dell part numbers
  • 100% new battery includes manual for easy installation

Specifications

Battery TypeLaptop Batteries

Questions about this item

Will the 14.8V 40Wh M5Y1K battery fit my Dell Inspiron 15 5000 series 5558 alongside the original charger?

Yes, the 4-cell lithium-ion pack replaces part numbers including P51F and 451-BBMG used in the 5558, and it charges through the laptop's existing 14.8V rail.

How can I confirm the 2600mAh M5Y1K is working correctly after I install it?

The battery should report 14.8V and near 40Wh in the BIOS or Dell Power Manager, and the laptop should run on battery alone without shutting down.

Does the M5Y1K package include screws or tools for the 3551 chassis, or just the battery?

The box contains 1 M5Y1K battery and a manual; mounting screws and any pry tools are not included and must be sourced separately.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.