RUEMIU 66Wh H5CKD 15V Laptop Battery for Dell

RUEMIU H5CKD is a 66Wh (4400mAh), 15V 4-cell lithium-ion replacement battery made to restore long runtime to compatible Dell Inspiron, Latitude and Vostro laptops.

When your Dell laptop no longer holds a reliable charge, swapping in a higher-capacity, OEM-compatible pack can bring multi-hour runtime back without replacing the whole machine. This RUEMIU upgraded H5CKD battery uses a 66Wh chemistry (an increase over some original 53Wh variants) while matching the contact layout and part numbers used in many Inspiron 2-in-1 and mainstream Dell notebooks. The pack ships with basic repair tools and a simple manual to help you install it safely.

Will this battery fit my specific Dell model?

Yes when your laptop matches the compatible models and part numbers listed. The H5CKD battery is designed for a range of Inspiron 2-in-1 and clamshell systems and aligns with several Dell service part codes for direct replacement.

• Works with Inspiron 5400, 5406, 5501, 5502, 5402, 5300 series
• Compatible with Inspiron 7300, 7306, 7405, 7500, 7506 2-in-1 Silver models (not compatible with the Black 2-in-1 series)
• Also compatible with Latitude 3410 and 3510, and Vostro 5402/5502 models
• Recognizes part numbers: H5CKD, 07T8CD, 7T8CD, 0TXD03, TXD03, 09077G, 9077G

How much longer will the RUEMIU 66Wh battery power my laptop?

The upgraded 66Wh capacity provides noticeably longer runtime versus many original 53Wh packs under comparable workloads. Actual runtime varies by usage, screen brightness and background processes, but expect an increase in on-battery time for everyday tasks such as web browsing, document editing and media playback.

• Capacity: 66Wh (4400mAh) for extended use
• Voltage: 15V, designed to match original Dell battery power delivery
• Cell count: 4-cell pack for balanced energy density and size
• Typical benefit: longer general productivity and media playback sessions

What safety and performance features are included?

The RUEMIU battery integrates a smart protection IC and standard lithium-ion safeguards to help preserve both battery and laptop health. These protections reduce risks associated with overheating and electrical faults while supporting stable charging and discharge cycles.

• Smart IC chip for temperature control and proper charge management
• Protection from overcharge, over-discharge, overvoltage and short circuit
• Quality-controlled cells and manufacturing to meet typical replacement standards
• Includes installation manual and basic repair tools to ensure correct fitting

How do I install this replacement battery and what comes in the box?

Installation is straightforward for a user comfortable opening a laptop’s access panel; the package includes a manual and tools to guide you step-by-step. If you prefer, a certified technician can perform the swap to avoid warranty or service concerns.

• Package contents: RUEMIU H5CKD battery, repair toolset, installation manual
• Simple screw-and-plug swap for compatible models—follow manual instructions
• Customer support from RUEMIU for questions or installation help
• Recommend powering down and disconnecting AC before replacing the battery

Who is this for: This replacement battery is best for Dell owners whose Inspiron, Latitude or Vostro laptop shows reduced battery life or fails to hold a charge, and who want a cost-effective power upgrade rather than buying a new computer. It's ideal for students, remote workers and anyone who needs longer unplugged sessions and a direct-fit, higher-capacity alternative to certain original Dell battery models.