Add to Cart Quick view BB-30M Battery Backup Module Astron Corporation MSRP: $99.95 Now: $56.00 Was: Automatically switches to battery source upon power supply failure Built-in battery charger for standard 12 and 24V batteries (13.8 and 27.6VDC) Battery and power supply sources may combine... MSRP: $99.95 Now: $56.00 Was: Add to Cart Quick view