TSKYBEAR Replacement T54FJ Laptop Battery for Dell Latitude & Inspiron – 57Wh, 11.1V, 6-Cell

Power that travels with you

The TSKYBEAR Replacement T54FJ Battery refreshes aging packs on a wide range of Dell Latitude and Inspiron notebooks. With 57Wh of energy and an 11.1V output, this 6‑cell Li‑ion pack supports daily tasks, meetings, classes, and travel without frequent recharges. It’s designed to restore portable power so you can stay productive wherever you work.

Broad compatibility for a smooth swap

This battery fits several Dell Latitude models including E6420, E6430, E6440, E6540, E5420, E5430, E5520, E5530, and E6530. It also covers multiple Inspiron variants such as 14R 5420, 15R 5520, 17R 5720, 7520, and 7720. A unified option saves time and reduces hassle when replacing an aging pack.

Key specifications at a glance

• Battery Type: Li-ion, Cells: 6, Capacity: 57Wh, Voltage: 11.1V
• Compatibility: Dell Latitude E6420/E6430/E6440/E6540/E5420/E5430/E5520/E5530/E6530 and Inspiron 14R 5420, 15R 5520, 17R 5720, 7520, 7720
• Compatible P/Ns include 04NW9, 2P2MJ, DHT0W, HCJWT, NHXVW, P8TC7, PRRRF, UJ499, YKF0M, X57F1, 8P3YX, P15F, P15G, P16G, 312-1242, 312-1324, 312-1325
• Up to 500 recharge cycles for longer life; CE and FCC safety certifications
• 12-month replacement service from the date of purchase

Practical performance matters. The 11.1V configuration aligns with typical original specs, supporting a stable power profile across daily workflows. Expect dependable startup, steady performance, and a predictable charging cadence as you move between locations.

Real-world use cases

• Travel and field work: more time between plugs during flights, meetings, and on-site visits
• Campus life: extended study sessions and classes with fewer interruptions for charging
• Remote work and freelancing: quick, safe battery swaps without hunting for adapters

Care, safety, and service

• CE and FCC certified for safety
• Designed to withstand hundreds of recharge cycles with consistent performance
• 12-month replacement service offers added peace of mind for normal use

Why choose TSKYBEAR

TSKYBEAR focuses on reliable replacement batteries that mirror original performance. The T54FJ line emphasizes broad model coverage, predictable energy delivery, and a warranty-backed purchase experience. This combination supports smoother transitions when upgrading aging packs without narrowing your device choices.