Amazon.com: New Battery Compatible for Acer Aspire 7330 7520 7530G 7530 7720G 7730G AS07B51 Battery Replacement 4400mAh 47.5WH : Electronics
Amazon.com: DR. BATTERY 916-3020 4UR18650F-1-QC192 Laptop Battery for Acer Aspire 5510 Series 5000 Series 3000 Series 3500 Series 1680 Series 1650 Series 1640 Series TravelMate 4000 Series [14.8V / 65Wh] : Electronics