The CyberPower CyberShield DBH36D12V D-Cell Battery Holder supply adapter is designed to provide a reliable power supply for uninterrupted operation of your devices. With a voltage compatibility of 12V, this battery holder is perfect for use with a variety of electronics. The CyberPower brand ensures high-quality and durability, making it a reliable choice for ensuring uninterrupted power to your devices during outages or emergencies.