Fancy Buying J1KND 11.1V 58Wh Laptop Battery for Dell

Fancy Buying J1KND is a 6-cell, 11.1V 58Wh Li-ion replacement laptop battery engineered to restore portable power to compatible Dell Vostro and Inspiron models.

When your notebook won’t hold a charge or dies unexpectedly, swapping in a fresh battery is the fastest way to get reliable runtime back. The Fancy Buying J1KND battery provides 58Wh (5200mAh) capacity with protective circuitry and Grade A cells, designed as a direct-fit replacement for many Dell part numbers. It aims to match OEM performance while offering safety features and a 12-month warranty.

Which Dell models and part numbers does this battery work with?

This battery is built to be compatible with numerous Dell Vostro and Inspiron models and many OEM part numbers. Before purchasing, compare your laptop’s battery model or part number to the compatibility list to ensure a direct replacement.

• Compatible laptops: Vostro 3550, 3450, 1440, 3750 and Inspiron series including N7010, N7110, N5010, N5110, N5030, N5040, N5050, 3520, N4010, N4110, N4050, M5010, 3420, M5030, M5040, M5110, M4110.
• Common compatible part numbers: 4T7JN, J1KND, 312-0233, 312-0234, 383CW, 451-11510 and many OEM codes listed on the product page.
• Check chassis label or remove old battery to confirm model/part number before ordering.

How long will the battery last on a single charge and over time?

Runtime depends on your laptop’s configuration and workload, but typical operation falls between 2 and 3.5 hours under moderate use. The battery uses Grade A cells and built-in protection that supports up to approximately 500 recharge cycles, preserving capacity and helping maintain a consistent charge profile.

• Nominal capacity: 58Wh / 5200mAh at 11.1V.
• Expected single-charge runtime: around 2–3.5 hours (varies with tasks and power settings).
• Cycle durability: rated for up to ~500 recharge cycles with normal use.

What safety features and build quality can I expect?

Safety is addressed with multiple circuit protections integrated on the battery’s PCB: overcharge, over-discharge, over-temperature, and short-circuit safeguards. The pack uses high-quality materials and components to reduce heat and support stable charging behavior, meeting standards expected for aftermarket replacements.

• Protections: overcharge, over-discharge, short-circuit, and thermal safeguards.
• Construction: 6-cell Li-ion assembly with quality circuit boards and Grade A cells.
• Performance: designed for fast charge acceptance and controlled power consumption.

What warranty, returns, and support are included?

Fancy Buying offers a customer-friendly return and warranty policy to give peace of mind. If the battery fails or doesn’t meet compatibility, you can request a refund or service within the specified window.

• 30-day full refund policy if you’re not satisfied.
• 12-month warranty covering manufacturing defects; support via the seller’s contact channel.
• Responsive customer service with replies typically within 24 hours for product inquiries.

Who is this for? The Fancy Buying J1KND 11.1V 58Wh replacement battery is aimed at owners of older Dell Vostro and Inspiron laptops who need a cost-effective, ready-to-install replacement to regain mobile runtime. It suits users who want a near-OEM fit with standard safety protections and a seller-backed warranty, including students, professionals, and small-business users maintaining legacy machines.