choccosuri RJ40G 63Wh 15.2V Laptop Battery for Dell

The choccosuri RJ40G is a 63Wh (15.2V) Grade‑A replacement laptop battery designed to restore full runtime for compatible Dell Latitude and Precision notebooks.

If your Dell Latitude 14 5420, Latitude 15 5520 or Precision 15 3560 is running short on battery life or shuts down unexpectedly, the choccosuri RJ40G offers a direct swap with the same voltage and capacity as the original pack. This four‑cell Li‑ion battery delivers 63Wh (3941mAh) at 15.2V, supports up to roughly 600 recharge cycles, and includes built‑in protections to help maintain stable operation and safe charging.

How does the RJ40G restore laptop battery life?

Replacing an aged or failing battery with the RJ40G returns your system to near‑factory runtime because it matches the original power specifications and uses Grade‑A cells. Expect noticeably longer unplugged usage compared with a degraded pack, plus consistent voltage under load for reliable performance.

• 63Wh (3941mAh) capacity for extended unplugged time.
• 15.2V nominal voltage matching original Dell specifications.
• Grade‑A cells for better energy retention and charging behavior.
• Rated for up to ~600 charge cycles for long service life.

Which Dell models and part numbers will this battery fit?

The RJ40G is built to be compatible with several Dell Latitude and Precision series and replaces multiple OEM part numbers. Confirm your laptop model or match one of the listed part numbers before purchasing to ensure a correct fit.

• Compatible models: Latitude 14 5420, Latitude 15 5520, Precision 15 3560.
• Common replacement part numbers: RJ40G, 01K2CF, 075X16, WY9DX, 0WK3F1, 0M3KCN, 005R42.
• Works with internal part codes such as P137G and P104F series.
• Always verify compatibility using your laptop service tag or part label.

What safety and durability features are included?

The choccosuri RJ40G incorporates multiple protections and undergoes testing to reduce risks like overheating, overcurrent, and short circuits. These safeguards help preserve both battery life and device stability while meeting common environmental and safety standards.

• Advanced circuit protection against short circuits and overloads.
• Low self‑discharge design for improved storage and standby life.
• Manufactured with Grade‑A cells and tested for stable voltage output.
• Built to support fast charging while minimizing heat build‑up.

What warranty and support come with the battery?

choccosuri backs the RJ40G with a one‑year warranty and a 60‑day returns window to give buyers confidence in compatibility and performance. Customer support resources are available if you need assistance installing the battery or confirming part numbers.

• 60‑day hassle‑free returns policy.
• 1‑year limited warranty covering defects in materials and workmanship.
• Support guidance on compatibility checks and installation steps.
• Clear product listing of compatible models and part numbers for verification.

Who is this for: The choccosuri RJ40G 63Wh battery is intended for owners of compatible Dell Latitude 14 5420, Latitude 15 5520 or Precision 15 3560 laptops who need to replace a worn battery and regain reliable unplugged runtime. It’s a good choice for professionals, students, and technicians seeking a direct, specification‑matched replacement with safety protections and manufacturer support. Before purchasing, check your laptop’s model label or service tag and compare part numbers to ensure a correct match.