Battery for Lenovo P14s / T490 51Wh 11.55V Li-Ion by Triton (L18L3P73) 4372 mAh, black

Replacement Triton laptop battery compatible with Lenovo P14s and T490 series. This black lithium‑ion battery provides a nominal capacity of 51 Wh (4372 mAh) at 11.55 V and is supplied as a single unit intended to restore portable runtime for office, travel and field work. The battery is designed to match the physical size and connector types of the specified Lenovo models and delivers standard rechargeable Li‑Ion performance for everyday computing tasks.

Advantages

The Lithium‑Ion chemistry offers a balance of energy density and weight, enabling extended runtime without adding significant bulk to your laptop. With 51 Wh nominal capacity and a rated voltage of 11.55 V, the battery supports typical productivity workflows such as document editing, web browsing and videoconferencing. Supplied in a black finish, the unit is intended as a direct replacement that fits into the original battery compartment and uses the laptop’s existing charging circuitry.

Suitable for

• Lenovo P14s users needing a direct replacement battery
• Lenovo T490 owners who require restored mobile runtime
• Professionals working remotely or travelling with a laptop
• Field technicians and on‑site staff needing reliable power between charges

Key specifications

• Battery technology: Lithium‑Ion (Li‑Ion)
• Nominal energy: 51 Wh
• Capacity: 4372 mAh
• Nominal voltage: 11.55 V
• Colour: Black
• Quantity: 1 battery unit

How to use

Power down the laptop and disconnect any external power sources before replacing the battery. Remove the service cover following the laptop manufacturer’s instructions, slide out the depleted battery and insert the replacement so that the connector aligns securely with the laptop contacts. Refit the cover, reconnect power and allow the battery to charge fully before first use to ensure accurate battery level reporting. Use the laptop’s power management settings to monitor charge cycles and health.

Recommendations

For best long‑term battery performance, avoid deep discharges and extreme temperatures. Charge the battery before storing for extended periods, and use the laptop’s built‑in battery calibration or health tools periodically to maintain accurate capacity reporting.