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Battery for Dell Inspiron 7779/7778, Latitude 3379, Vostro 5568 — MicroBattery FC92N Li‑Ion
Replacement laptop battery MicroBattery FC92N compatible with Dell Inspiron 7779 and 7778, Latitude 3379 and Vostro 5568. This Lithium‑Ion (Li‑Ion) battery is designed to restore portable power to compatible notebook models, enabling mobile use, system maintenance, and extended runtime for tasks away from mains power.
This MicroBattery Li‑Ion battery provides a factory‑style replacement power source that restores original runtime characteristics for supported Dell models. It supports repeated charge cycles typical of modern laptop batteries and is intended for easy swapping during repairs or device maintenance. The design focuses on compatibility and reliable energy delivery for everyday mobile computing.
Power down the laptop and disconnect it from the mains before beginning. Remove the service panel or battery access cover according to the device manufacturer’s instructions, then carefully disconnect and remove the old battery. Install the replacement battery ensuring connector alignment and secure mounting. Reattach the access cover and power on the laptop to verify proper charging and operation. Follow the laptop manufacturer’s service manual for steps specific to each model.
Charge the replacement battery fully before first use and perform normal charge/discharge cycles. Use the laptop’s power management settings to optimize runtime and avoid prolonged deep discharge. For safety, use only compatible chargers and follow Dell’s maintenance guidance when replacing internal components.
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