choccosuri WY9DX Laptop Battery for Dell Latitude/Precision

choccosuri WY9DX is a direct-replacement 11.4V, 42Wh (3500mAh) Li‑ion laptop battery compatible with select Dell Latitude 5420/5520 and Precision 3560 models.

If your Dell Latitude or Precision laptop isn't holding charge like it used to, the choccosuri WY9DX replacement battery restores portable power without changing your machine. This 3‑cell Li‑ion pack is built to match original specifications and common OEM part numbers so you can swap it in and resume normal use. Designed with grade‑A cells and multi‑layer protection circuitry, the pack balances runtime and safety for everyday productivity.

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

The WY9DX battery is compatible with multiple Latitude 14/15 and Precision 15 SKUs and common OEM references. Check your laptop’s service tag or the part number on the original pack to confirm fit before purchasing.

• Compatible models: Latitude 14 5420, Latitude 15 5520, Precision 15 3560 series.
• Matchable part numbers: WY9DX, RJ40G, 01K2CF, 075X16, 005R42 and others listed.
• Alternate model codes: P104F, P137G and their numbered variants.

How long will the choccosuri WY9DX battery run and last?

Runtime depends on workload, display brightness, and connected peripherals; light tasks will see longer use than heavy processing. The pack is rated 42Wh (3500mAh) at 11.4V and is designed for at least 500 charge cycles before noticeable capacity loss under normal conditions.

• Rated capacity: 42Wh / 3500mAh at 11.4V.
• Cycle life: ≥500 cycles under standard usage.
• Performance varies by laptop configuration and settings.

What safety features and quality controls are included?

choccosuri builds the WY9DX with grade‑A cells plus integrated protection to reduce risks like overheating and short circuits. The battery undergoes electrical and compatibility testing to ensure stable voltage delivery and compliance with common environmental standards.

• Overheat, short‑circuit, and overload protection circuitry.
• Low self‑discharge design and stable voltage output.
• Manufacturing tests for electrical safety and fitment accuracy.

What warranty and support come with the battery?

Each choccosuri WY9DX battery includes a 60‑day return window plus a one‑year limited warranty for peace of mind. If you need compatibility help or installation guidance, the product details page provides troubleshooting steps and customer support options.

• 60‑day hassle‑free returns.
• 1‑year limited warranty covering manufacturing defects.
• Customer support and compatibility checking instructions provided online.

Who is this for: The choccosuri WY9DX replacement battery is intended for Dell laptop owners seeking a cost‑effective swap for a worn or failing OEM pack—especially IT technicians, mobile professionals, and students using Latitude 5420/5520 or Precision 3560 models who want reliable runtime without a full device replacement. Confirm your device’s part number before purchase to ensure the correct fit and performance.