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 laptop battery with label showing 40Wh 14.8V 4-Cell

PISKEKAT

PISKEKAT M5Y1K 40Wh 14.8V 4-Cell laptop battery

SKU CH-EXTH-CJZBC

A 40Wh 14.8V 4-cell lithium-ion replacement battery for Dell Inspiron 14, 15 and 17 3000 and 5000 series laptops, tested for over 1500 hours with up to 1000 recharge cycles

  • Battery TypeLaptop Batteries
  • Up to 1000+ recharge cycles for long service life
  • 40Wh capacity with 2700mAh at 14.8V delivers extended runtime
  • Tested for over 1500 hours to ensure reliability
  • Smart chip regulates temperature for stable performance in cold conditions
  • Built-in overcharge, overcurrent, overheat and short-circuit protection for safe charging

Replacement battery for Dell Inspiron

This 40Wh lithium-ion pack replaces the original M5Y1K unit in compatible Dell Inspiron 14, 15 and 17 models across the 3000 and 5000 series. It delivers 14.8V from four cells rated at 2700mAh and is tested for up to 1000 recharge cycles. The smart chip regulates temperature to maintain consistent performance.

Suits owners of listed Inspiron models

Buyers whose laptop uses a different part number or voltage should look elsewhere, as this pack only fits the models and OEM codes shown in the compatibility list. It is not for systems that require a higher capacity or a different cell count. Verify the exact model before ordering.

Straightforward swap with a screwdriver

Installation typically needs only a screwdriver to remove the bottom cover and exchange the old pack. The built-in protection guards against overcharge, overcurrent, overheating and short circuits. The main risk is fitting it to an unsupported model, which will prevent the laptop from recognising the battery.

Highlights

  • Up to 1000+ recharge cycles for long service life
  • 40Wh capacity with 2700mAh at 14.8V delivers extended runtime
  • Tested for over 1500 hours to ensure reliability
  • Smart chip regulates temperature for stable performance in cold conditions
  • Built-in overcharge, overcurrent, overheat and short-circuit protection for safe charging

Specifications

Battery TypeLaptop Batteries

Questions about this item

Which Dell Inspiron model numbers does the M5Y1K 40Wh battery replace?

It replaces batteries in Inspiron 14, 15 and 17 3000 and 5000 series including 5559, 5558, 3451, 3558, i3558, 3565, 3567, 5451, 5755, 5756, 5458, 5759 and 5758.

Will the 14.8V 4-cell pack fit the original battery bay without modification?

Yes, the M5Y1K matches the OEM form factor for the listed Inspiron models and installs with only a screwdriver.

How can I confirm the battery is charging correctly after installation?

The smart chip manages temperature and protects against overcharge, overcurrent and short circuit; the OS will show normal charge percentage and cycle count up to 1000+ cycles.

Also in this aisle

People compared these

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