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Rectangular black laptop battery with label showing model M5Y1K 62Wh 14.8V 4200mAh

DELL M5Y1K 62Wh 14.8V 4200mAh laptop battery

SKU CH-3R5Y-W7WST MPN M5Y1K

A 62 Wh lithium-ion replacement battery for Dell Inspiron 14, 15 and 17 models, upgrading the original 40 Wh design for longer runtime

  • Battery type96 W
  • Battery voltage rating20 V
  • Power adapter voltage20 V
  • Measurements14.33 in W × 12.83 in H × 9.06 in D
  • Product typeCharger
  • Key featuresLithium ion, Rechargeable, 14.8 V, 4,200 mAh, 4200 milliampe
  • 62Wh capacity extends runtime over the original 40Wh design
  • 8V lithium-ion chemistry matches Dell Inspiron and Vostro voltage requirements
  • Smart IC chip protects against overheating, overcharging and short circuits
  • Replaces part numbers M5Y1K, P47F, GXVJ3 and more for wide model coverage
  • New 4-cell battery weighing 100 grams installs without extra tools

62Wh 14.8V replacement battery

This 62Wh lithium-ion battery replaces the original 40Wh M5Y1K unit in compatible Dell Inspiron and Vostro laptops. It delivers 4200mAh at 14.8V using a four-cell design for extended runtime. The pack includes an installation manual and built-in smart IC protection against overheating, overcharging, overvoltage and short circuits.

Verify model or part number first

Before ordering, confirm that your laptop model or original battery part number appears in the compatibility list. Supported models include Inspiron 14 3000 and 5000 series, Inspiron 15 3000 and 5000 series, Inspiron 17 5000 series and Vostro 3458 and 3459. Matching the exact part number such as M5Y1K, P47F or GXVJ3 ensures correct fit and voltage alignment.

Fits internal battery bay directly

The battery installs into the existing internal compartment without adapters or external cables. Its 14.8V output matches the system requirement, freeing you from reliance on the AC adapter for longer periods. The 100 gram weight and compact form factor maintain the original chassis balance and portability.

How it compares

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

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

Specifications

Product
Brand nameDELL
Model nameM5Y1K
Part numberM5Y1K
Product typeCharger
Power
Battery type96 W
Battery voltage rating20 V
Power adapter voltage20 V
Size & build
Measurements14.33 in W × 12.83 in H × 9.06 in D
Product weight100 g

Questions about this item

What comes in the box with the DELL M5Y1K battery and do I need any extra parts?

The package includes the M5Y1K 62Wh 14.8V 4200mAh lithium-ion battery and an installation manual. No additional components or tools are required for fitting it to a compatible Dell Inspiron or Vostro laptop.

The listing mentions an upgraded 62Wh capacity versus the original 40Wh design — which one should I choose?

The supplied unit is the upgraded 62Wh 4-cell version, which delivers more energy and longer run time than the earlier 40Wh design while using the same 14.8V voltage and M5Y1K part number.

How does the 62Wh rating translate to actual usage once the battery is installed in my Dell laptop?

At 14.8V and 4200mAh the 62Wh capacity provides extended operating time compared with the original 40Wh battery, and the built-in smart IC chip protects against overheating, overcharging, overvoltage and short circuits during daily use.

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