Get longer battery life and improved laptop performance with a new Asus U42 replacement battery.

This battery with the Asus U42, U43, U52, and U53 series laptop models. Additional compatible models and part numbers are listed below.

Our batteries are built with the highest quality battery cells and components. Each battery is backed by a 2 year warranty and 30-day money-back guarantee.

We use the highest quality lithium-ion cells and battery components that run longer, charge faster, and weigh less than cheaper, lower quality batteries. Lower quality batteries are made with inferior cells and parts that can wear out in as little as 6 months.

You can expect about 2 - 2.5 hours of run time with this Asus A41-U53 battery when new, depending on your energy use. The battery cells inside this cartridge have an energy capacity of 5200 mAh. This battery will be compatible with batteries rated at 4400 & 4800 mAh capacities.