Dr. Battery 3UR18650Y-2-QC261 laptop battery 11.1V 4400mAh for Acer Aspire 3050 5500 TravelMate 2480 3260

Replacement battery for Acer Aspire and TravelMate

This Dr. Battery Professional Series unit is a new lithium-ion replacement rated at 11.1V and 4400 mAh. It fits a wide range of Acer Aspire 3000, 3600, 3680, 5000, 5500, 5570 and 5580 series models as well as Extensa 2400 and TravelMate 2400, 2480, 3200, 3220, 3230 and 3260 series notebooks. The pack is engineered to meet original specifications for proper fit and secure installation. Buyers with laptops outside these listed series cannot use this battery.

Steady output with integrated safety circuits

OEM-grade Li-ion cells provide stable voltage delivery during extended work sessions rather than only brief bursts. Built-in protection guards against over-charge, over-discharge, over-current and short-circuit conditions to protect both the battery and the notebook. The design targets consistent, dependable performance for everyday home, school and office workloads. Systems requiring a higher capacity pack will not be served by this 4400 mAh unit.

Precision housing matches original dimensions

The battery measures 8.0 by 1.5 by 0.8 and weighs 0.4, mirroring the factory form factor so it seats securely in the existing compartment without gaps or forced alignment. Connector placement follows the original layout for a firm, reliable connection on the first attempt. No extra cables, adapters or mounting hardware are included or required. Users needing a different physical profile or connector orientation must seek an alternative part.