http://www.batterylink.us/laptop-batteries/acer-travelmate-2300-series.htm

This ACER TRAVELMATE 2300 SERIES laptop battery has passed strict quality assurance procedures to achieve international standards such as CE, UL Listed, and/or ISO9001/9002 certification. All purchases in our battery & battery charger store 30 days money back guarantee. In addition, TRAVELMATE 2300 SERIES laptop batteries are warranted for a full year to ensure your complete satisfaction