The MBL-IRCBH+AB is the ideal accessory for providing portable power for In-field and ENG type applications for use with Evertz 350FR frames. The MBL-IRCBH+AB uses Anton Bauer 14.4 volt batteries and allows seamless battery changes, continuously powering the Evertz frames. It is especially valuable in circumstances where 77xx series modules need to be in continuous operation for long periods of time or for high power consuming. The 350FR frames can be operated for as long a period as necessary, substituting fresh batteries for depleted ones without interrupting operation.