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Black rectangular lithium-ion laptop battery with label showing 40Wh 14.8V 185W

TOPKTEAM

TOPKTEAM M5Y1K 40Wh 14.8V 185W laptop battery

SKU CH-K1XA-PDQYK

40 Wh 14.8 V lithium-ion replacement battery with four cells for compatible Dell laptops

  • Battery TypeLithium-Ion
  • 40 Wh capacity extends runtime between charges
  • 8 V output matches Dell system requirements
  • 185 W power rating supports demanding workloads
  • Four-cell lithium-ion design balances weight and endurance
  • Tested replacement battery ensures reliable fit and function

Genuine Dell replacement battery

The TOPKTEAM M5Y1K is a 40Wh lithium-ion battery built to 14.8V for compatible Dell Inspiron laptops. It arrives new and tested, ready to restore full mobile operation without modification.

Thermals and power profile

Rated at 185 W, the pack delivers stable output under normal workloads while the four-cell lithium-ion chemistry keeps heat generation low. No active cooling is required and the unit runs silently during typical use.

Build integration

The black 4-cell form factor slots directly into the designated bay, using the laptop's existing charging circuitry and connectors. It frees the user from tethered AC power and adds no extra cables or mounting hardware to the chassis.

Highlights

  • 40 Wh capacity extends runtime between charges
  • 8 V output matches Dell system requirements
  • 185 W power rating supports demanding workloads
  • Four-cell lithium-ion design balances weight and endurance
  • Tested replacement battery ensures reliable fit and function

Specifications

Battery TypeLithium-Ion

Questions about this item

How do I install the M5Y1K 40Wh 14.8V battery and which step do people often miss?

Power off the laptop, disconnect the AC adapter, remove the old pack, connect the new 4-cell Li-ion battery, then secure the latch before turning the machine back on.

What maintenance or replacement will the M5Y1K 40Wh battery need later?

The 40Wh Li-ion pack will gradually lose capacity; plan to replace it once runtime drops below your needs, typically after several hundred charge cycles.

What limit appears first on the M5Y1K 40Wh 14.8V battery during sustained high-load use?

The 185 W power ceiling is reached before the 40Wh capacity is fully drained, so heavy workloads hit the wattage limit first.

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