Asus A42-UL50 07G016C11875, 70-NZA5b1000ZA U43, U45, U52 Series, 12-Cell (High Capacity) Battery, New! - Tech Rover 100% Compatible - Will not void your original laptop warranty Tech Rover&trade; Quality product with 30-DAY Worry-Free Return Policy Brand New Battery, 6600-7800 mAh, Effective Capacity All Tech Rover&trade; branded items carry a 1 year warranty against manufacturer defects. 12-Cell High Throughput Battery *Please note this an extended capacity battery and may protrude slightly from your laptop.