Battery back-up box, no battery

As a neat alternative to a loose battery, Alfatronix also supply a battery back up box, AD BBB NB. This is designed to fit underneath the desktop supply and radio assembly. A 7Ah(7Ahr SLA) lead acid gel battery fit inside the Battery back-up box. The battery back up box also includes a speaker (mounted on the front of the unit) for those wishing to use hands free radio operation. Speaker 8 OHM 3W.