ZTHY 54Wh Laptop Battery for Dell Latitude & Precision

ZTHY DR02P R73TC 54Wh 3‑cell replacement battery restores portable power for compatible Dell Latitude, Precision and Inspiron laptops.

If your Dell laptop no longer holds a reliable charge, this ZTHY 54Wh Li‑ion battery is designed as a like‑for‑like replacement for multiple Latitude, Precision and select Inspiron models. The pack matches the original voltage and capacity specifications so it fits and performs like the factory unit. It ships brand new, in black, and uses the compatible OEM part numbers listed to help you confirm fit before purchase.

Which Dell models and part numbers does this battery support?

This battery is cross‑referenced to several Dell compatible part numbers and fits many 13‑ to 15‑inch Latitude, Precision and Inspiron models. Check your laptop’s existing battery label or service tag to verify compatibility before ordering.

• Compatible part numbers: DR02P, R73TC, 2X1V9, GRWKG, 803W6, CN‑0803W6, JTG7N
• Fits: Latitude 3340 / 3440 / 3450 / 3540 / 3550 / 5340 / 5350 / 5440 / 5450 / 5540 / 5550
• Also for: Precision 3480 / 3490 / 3580 / 3590 and Dell Inspiron 14 Plus 7441 variants
• Special notes: R73TC fits Precision 3580/3590 but not Latitude 15 3580/3590 — confirm model label

How do I install and initialize the new battery?

Installation is straightforward: power down, remove the old pack, seat the replacement, and reconnect. If the system does not immediately recognize the battery, a simple reconnect and charge cycle often resolves initialization.

• Turn off the laptop and remove any external power before replacing the battery
• Ensure the battery connector is fully seated and the latch engages
• If unrecognized, reinstall, discharge to 10–20% (not 0%), then charge and cycle 3–4 times to calibrate

What are the electrical specifications and safety reminders?

This ZTHY replacement is a lithium‑ion pack that matches the original Dell battery electrical specs so it integrates with charging circuitry and power management. Handle and store lithium batteries with standard precautions to prevent damage or short circuits.

• Battery type: Li‑ion, Voltage: 11.4V, Capacity: 54Wh (3 cells)
• Color and finish: black housing, new from manufacturer
• Do not puncture, expose to high heat, or dispose of in household trash; follow local battery recycling rules

Will this replacement affect performance or battery life?

When correctly installed, this replacement is intended to restore the run time you had with the original battery, matching the factory voltage and capacity rating. Battery longevity depends on usage patterns, power settings and charging habits.

• Expect comparable runtime to the original 54Wh specification under similar workloads
• Battery health improves with regular calibrated charge cycles and avoiding deep discharges
• If issues occur, recheck connector seating and perform the recommended charge/discharge cycles

Who is this for: This ZTHY DR02P R73TC 54Wh battery is aimed at owners of compatible Dell Latitude, Precision and select Inspiron 2‑in‑1 and laptop models who need a reliable OEM‑spec replacement. It's ideal for professionals, students and mobile workers seeking a straightforward swap to regain original portable battery life without buying a new machine. Always confirm your laptop model and part number against the compatibility list before purchasing.