Dr. Battery MPL03243P-26 6 Cell 10.8V 4400mAh laptop battery

Replacement for Asus U-Series

The Dr. Battery MPL03243P-26 is a 6-cell lithium-ion unit rated at 10.8V and 4400 mAh. It serves as a direct replacement for a wide range of Asus U33, U42, U43, U52 and U53 notebooks. The pack is built to match OEM specifications for voltage and physical fit. Buyers needing a higher capacity pack or a different voltage should look elsewhere.

Voltage and capacity limits

The battery delivers 10.8V and 4400 mAh, which equals approximately 48 Wh of stored energy. Runtime depends entirely on the laptop's power draw and the health of the charging circuit. The pack cannot supply more current than its cell chemistry allows, and it will not charge beyond its rated voltage. Systems requiring a different voltage or a proprietary communication protocol will not work with this unit.

Build quality and daily use

Six lithium-ion cells are housed in a black enclosure with an integrated smart control chip. The chip manages charging current, provides short-circuit, overheat and overload protection, and helps extend discharge time. The design follows the original form factor so it seats securely in the battery bay without adapters. Regular calibration cycles help maintain reported capacity accuracy over the one-year warranty period.