With the CTA extended battery you get 50-percent more power for your portable DVD player than the original manufactures battery. This ultra high capacity Lithium extended rechargeable battery will last up to 10 hours of uninterrupted viewing time and is designed to meet or exceed OEM specifications it is 100-percent compatible with the original equipment chargers. Click on Overstock.com for huge savings on all your electronics needs. Battery specifications: Chemistry: Lithium-ion Voltage: 7.2V mAh (capacity): 6000mAh Run time: up to 10 hrs For use with the following Panasonic portable DVD players: DVD-LA85/LA95 DVD-LV55/LV70/LV75 DVD-LX7/LX8/LX9 DVD-PA65 DVD-PV55