Pentax D-LI122 Rechargeable Li-Ion Battery: The battery is designed for Pentax Optio VS20 megazoom digital camera also replace D-LI68 battery. The battery is based upon Li-ion technology that store more power and work for longer periods. The battery offers high capacity of 940-1000mAh for long period shooting and playback. The battery provides approximately 200 recordable images, 100 min of video recording, and 180 min of video playback per full charge. Provide extended life and consistent power, even in colder conditions. The battery is lightweight, easy to install, fast charge, long lasting, reliable and solid construction.