ZTHY JK6Y6 40Wh Replacement Battery for Dell Latitude, Vostro, and Inspiron 2-in-1 (11.25V, 3-Cell, Silver)

Overview

Upgrade or replace with the ZTHY JK6Y6 40Wh battery, a Li-ion power pack designed to support daily laptop usage. The 3-cell design helps maintain a lighter profile while delivering usable capacity for work, study, and entertainment on the go. Built to fit a wide range of Dell laptops, it’s a practical option for restored mobility without changing the device’s exterior aesthetic.

Key Specifications

• Battery type: Li-ion
• Color: Black
• Voltage: 11.25V
• Capacity: 40Wh / 3-Cell
• New from Manufacturer

Model-Shapes and Compatibility

Compatible Part Numbers include JK6Y6, C5KG6, CF5RH. This battery is intended as a replacement for many Dell Latitude, Vostro, and Inspiron models listed in the product details. It is not compatible with all configurations, so please verify your original part number and physical size before purchasing. Note that there are two common Dell battery sizes in circulation: this 40Wh 3-cell model and a 53Wh 4-cell model (H5CKD). The JK6Y6 3-Cell unit is distinct in size and fit.

Models and Fitment

• Compatible with Dell Latitude series including 3410, 3510, 3120, 3140
• Compatible with Vostro 5300, 5401, 5501, 5402, 5300, 5301
• Compatible with Inspiron 5300, 5401, 5402, 5408, 5409, 5501, 5502, 5508, 5509
• 2-in-1 variants such as 7405, 7300, 7306, 7500 (silver variants)

Important: There are two Dell battery sizes in circulation. This JK6Y6 40Wh 3-Cell unit may not fit models outside the listed compatibility. Please open your laptop back cover and confirm the battery model you need before purchasing.

Setup and Wake-Up Tips

• If the new battery isn’t recognized after installation, recheck that the interface connector is fully seated.
• Discharge the battery to about 10–20%, then recharge. Repeat the cycle 3–4 times to help wake up the new cell.
• Maintain moderate usage during the initial charge cycles and avoid deep discharges.

This replacement is intended to restore portable power and does not guarantee runtime improvements or specific performance outcomes. For best results, ensure compatibility with your exact model and install correctly.