What if the digital-to-analog converter box is not battery-powered?
If local utility power service is not available, another power source will be needed to supply power to the digital-to-analog converter box. There are several options available for consumers to supply back-up power to a digital-to-analog converter box. These external power sources include rechargeable battery packs, uninterruptible power supplies, car battery adapters, and small power generators. Additionally, there is at least one digital-to-analog converter box manufacturer that offers a separate battery pack for its digital-to-analog converter box. Consumers should check with local electronics stores and online retailers for further information on these devices.