2081-9281 SIMPLEX 50AH BATTERY CABINET, BEIGE SimplexÂ® rechargeable sealed-lead acid batteries provide reliable and repeatable discharge and recharge characteristics for use in fire alarm and other systems applications. They are designed with immobilized electrolyte in an absorbent separator, allowing them to provide rated capacity on the first cycle. Because of their sealed construction, packaging is allowed within the system electronics enclosure. When this is applicable, the quantity of system cabinets and the battery wiring distances are both minimized. Where required, external battery cabinets can be close-nippled to the control panel to house larger batteries with battery chargers available in some battery cabinet sizes. Datasheet 2081-9281.