MITSU laptop battery for Toshiba C850 / L800 / S855, 4400 mAh, 10.8–11.1 V

MITSU laptop battery for Toshiba C850 / L800 / S855, 4400 mAh, 10.8–11.1 V is a replacement battery designed to restore portable power for compatible Toshiba notebook models. It supplies the nominal capacity of 4400 mAh within a rated voltage range of 10.8–11.1 V to match standard laptop charging and power delivery systems, enabling typical mobile use such as web browsing, document editing and media playback.

Advantages

This MITSU battery provides a direct replacement solution that aligns with the original voltage range and offers a practical capacity for everyday tasks. It is designed to integrate with the notebook's existing power management and charging circuitry, offering predictable runtime performance. The battery's specifications make it suitable for mobile users who need to restore or extend operating time without changing the laptop's charging setup.

Suitable for

• Restoring runtime on Toshiba C850, L800 and S855 laptops
• Everyday productivity: office applications and web browsing
• Media playback and light multimedia use
• Replacing an aged or degraded battery to regain reliable battery life

Key specifications

• Nominal capacity: 4400 mAh
• Rated voltage: 10.8–11.1 V
• Compatibility: Toshiba C850, L800, S855 series
• Form factor: laptop internal replacement battery

How to use

Power down the laptop and disconnect any external power source before replacing the battery. Remove the existing battery following the laptop manufacturer's instructions, then install the MITSU replacement ensuring correct alignment and secure connection. After installation, connect the laptop to its charger and perform a full charge cycle to calibrate the battery and the notebook's power management system. Use the operating system's battery indicator to monitor charge level and health.

Recommendations

For optimal lifespan, avoid deep discharges and prolonged storage at full charge. Store the battery in a cool, dry place if not used for extended periods and follow the laptop manufacturer's guidelines for charging and battery care. If you experience unusual heat, swelling or rapid discharge, discontinue use and consult a qualified service technician.