The portable battery pack from Electric Eel Mfg. is designed for use with Ecam Ace, Ace Wi-Fi and Ace 2 pipeline inspection camera systems. The lithium-ion battery pack provides up to five hours of power. Features include battery gauge, low-power alarm and wall adapter for charging. Output voltages include 12-volt via DC jack and 5-volt via USB port. 800/833-1212; www.electriceel.com.