Blackmagic Design Battery Converter SDI to HDMI Protected Recessed Connections: Extending HDMI cable lengths during live production is easy as you can add a Battery Converter SDI to HDMI and use long SDI cables for your cameras Built-in Battery Power: The built-in lithium-ion polymer battery provides more than two hours of charge and, when you need to, you can power or recharge the unit easily from any 12V source. An LED indicates the battery charge level Latest SDI Technology: Battery Converter features the latest 3 Gb/s SDI technology with low jitter so you can use long SDI cable lengths and maintain perfect video quality Super Tough Design: Battery Converter is machined from aircraft grade aluminum and, like Mini Converter Heavy Duty models, features scratch resistant laser etched labeling and non slip rubber feet