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Rectangular black lithium-ion laptop battery with six cells and label showing 11.1 V 48 Wh

FOCUSTEC

FOCUSTEC J1KND 11.1 V 48 Wh 6-Cell Laptop Battery

SKU CH-Y3SZ-0G3M0

Replacement 11.1 V 48 Wh lithium-ion battery with six cells and 500-plus recharge cycles for Dell Inspiron and Vostro laptops

  • Battery TypeLithium-Ion
  • Lithium-ion chemistry delivers 48 Wh capacity
  • 1 V output matches original Dell specifications
  • Six cells provide 500-plus recharge cycles over battery life
  • CE FCC ROHS UL certified for safety compliance
  • Fits Inspiron N5010 N5110 N7010 N7110 and Vostro 3550 3450 1440 3750

Replacement battery for Dell Inspiron series

This 6-cell lithium-ion battery delivers 11.1 V and 48 Wh capacity for a wide range of Dell Inspiron and Vostro laptops. It is a new, direct replacement for part numbers including J1KND, TKV2V and 4T7JN. The unit carries CE, FCC, ROHS and UL certifications and is rated for over 500 recharge cycles.

Suitable for owners of listed Dell models needing

Buyers with laptops outside the compatible model list should look elsewhere, as fit and electrical matching are not guaranteed. This product does not support devices requiring a different voltage, cell count or connector layout.

Simple user-installable swap with no tools required

Installation typically involves releasing the battery latch, removing the old pack and snapping the new one into place. Issues arise when the battery bay is damaged or when the laptop firmware does not recognise the replacement, which may require a BIOS update.

Highlights

  • Lithium-ion chemistry delivers 48 Wh capacity
  • 1 V output matches original Dell specifications
  • Six cells provide 500-plus recharge cycles over battery life
  • CE FCC ROHS UL certified for safety compliance
  • Fits Inspiron N5010 N5110 N7010 N7110 and Vostro 3550 3450 1440 3750

Specifications

Battery TypeLithium-Ion

Questions about this item

Which Dell laptop models does the 11.1 V 48 Wh J1KND battery fit?

It replaces the original in Inspiron N4010, N4050, N4110, N5010, N5030, N5040, N5050, N5110, N7010, N7110, 3420, 3520, 1440 and Vostro 3450, 3550, 3750.

Will the 6-cell 11.1 V pack charge correctly on the original Dell AC adapter?

Yes, the 11.1 V 48 Wh lithium-ion cell configuration matches the factory voltage so the existing charger regulates charge current normally.

How can I confirm the battery is holding its rated 48 Wh after the first few cycles?

Run a full charge, then discharge to shutdown while logging capacity in the BIOS or a tool like BatteryInfoView; a healthy pack should report near 48 Wh.

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