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
Black rectangular laptop battery with label showing 11.1V 48Wh

Dr. Battery

Dr. Battery J1KND laptop battery 11.1V 48Wh

SKU CH-A3D1-Z5DD4

Replaces Dell Vostro and Inspiron batteries with an 11.1 V 48 Wh lithium-ion pack

  • Battery typeLithium-Ion
  • Battery voltage rating11.1 V
  • Battery capacity4,400 mAh
  • Product colorBlack
  • Product typeBattery
  • Compatible withCOMPATIBLE LAPTOP MODELS Dell: Inspiron Series: 13R, 13R (30
  • Restores mobility with 48 Wh lithium-ion capacity
  • Protects hardware through short-circuit, overheat and overload safeguards
  • Fits Dell Vostro 1440, 1550, 3550 and other listed models
  • Replaces original Dell batteries including 08NH55, 312-1201 and 312-0234
  • Backed by a Canadian brand established in 2006 with over 15 years experience

What this battery replaces

This Dr. Battery J1KND unit is a new lithium-ion replacement rated at 11.1V and 48Wh. It fits a long list of Dell Vostro and Inspiron models including the 1440, 1450, 1540, 1550, 2420, 2520, 3450, 3550, 3555 and 3750 series. The pack uses 4400 mAh cells and includes short-circuit, overheat and overload protections. It is built for owners who need a direct drop-in part for the original Dell batteries listed in the compatibility data.

Behaviour during extended use

The lithium-ion chemistry delivers steady voltage across the discharge cycle rather than a sharp drop near the end. Built-in protection circuits cut power if temperature or current exceed safe limits, so the pack remains stable during long work sessions. Cell balancing is handled internally, helping the battery hold its rated capacity over many charge cycles. No software calibration is required beyond the normal operating system routine.

Check before ordering

Confirm that your laptop model appears in the supported Vostro or Inspiron lists supplied above. Locate the part number on your existing battery and match it to one of the original Dell numbers such as 08NH55, 312-1201 or J1KND. Verify that the original battery shows 11.1V; a different voltage means the pack will not work. The remarks also advise checking the battery number before placing an order.

How it compares

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

Price $36.99
Pricier than about 66% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDr. Battery
Model nameDRPRODE240P-02
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating11.1 V
Battery capacity4,400 mAh
Compatibility
Compatible withCOMPATIBLE LAPTOP MODELS
Dell:
Inspiron Series:
13R, 13R (3010-D330), 13R (3010-D370HK), 13R (3010-D370TW), 13R (3010-D381), 13R (3010-D430), 13R (3010-D460HK), 13R (3010-D460TW), 13R (3010-D480), 13R (3010-D520), 13R (3010-D621), 13R (Ins13RD-348), 13R (Ins13RD-438), 13R (Ins13RD-448), 13R (Ins13RD-448LR), 13R (N3010), 13R (T510431TW), 13R (T510432TW), 13R N3010, 14 (N4050), 14 3420, 14R, 14R (4010-D330), 14R (4010-D370HK), 14R (4010-D370TW), 14R (4010-D381), 14R (4010-D382), 14R (4010-D430), 14R (4010-D460HK), 14R (4010-D460TW), 14R (4010-D480), 14R (4010-D520), 14R (Ins14RD-438),

Questions about this item

Does the 11.1V 48Wh battery run hot or draw extra power during all-day use?

The lithium-ion pack includes short-circuit, overheat and overload protection, so it operates within normal thermal limits without extra power draw.

What must I already own for this Dr. Battery J1KND to work in my laptop?

You need a compatible Dell Inspiron 13R or Vostro 1440, 1450, 1540, 1550, 2420, 2520, 3450, 3550, 3550N, 3555 or 3750 that originally used an 11.1V battery such as part 08NH55 or 312-1201.

Will this 4400 mAh replacement behave the same as the original battery in an older Vostro 1540?

Yes, it matches the original 11.1V 48Wh specification and fits the same bay, so runtime and charging behave identically to the factory pack.

More in Laptop Chargers & Batteries

Similar items