Dell 5TFCY Battery

The Dell 5TFCY battery is a Lithium Polymer (LiPo) replacement cell designed for use with compatible Dell laptop models. Providing 3454 mAh capacity in a compact form factor, this battery aims to restore mobile power for everyday tasks and prolong device uptime. The unit is supplied in a black and blue enclosure and weighs approximately 0.235 kg, matching form and function requirements for straightforward installation and daily use.

Advantages

The Lithium Polymer chemistry offers a balance of energy density and safety suitable for portable computers. With a rated capacity of 3454 mAh, the Dell 5TFCY battery delivers extended run time compared with heavily depleted original cells and helps reduce the need for frequent mains charging. Its lightweight construction at around 0.235 kg supports portability, and the standardized physical design simplifies replacement in supported Dell laptop models.

Suitable for

• Replacing an aging or failing Dell laptop battery to restore battery life
• Keeping a spare battery for travel or field work where mains power is limited
• Service and repair operations that require a compatible Lithium Polymer battery

Key specifications

• Battery technology: Lithium Polymer (LiPo)
• Capacity: 3454 mAh
• Weight: 0.235 kg
• Product colour: Black, Blue

How to use

Power down the laptop and disconnect any external power source before starting the replacement. Remove the laptop back cover or battery access panel according to the device manufacturer’s instructions, taking care with screws and clips. Unplug the existing battery connector from the motherboard, and replace it with the Dell 5TFCY battery, ensuring the connector and mounting points align correctly. Reassemble the laptop and perform a full charge cycle to calibrate the new battery according to standard battery care practices.

Recommendations

To maximize service life, avoid exposing the battery to extreme temperatures, do not puncture or short-circuit the cell, and store the battery at roughly 40–60% charge if it will not be used for an extended period. Follow Dell’s device-specific instructions for safe replacement and disposal of the removed battery.