BWG_Spec_Sheet_BW-12550-final.pdf

This is a specification sheet for the Bright Way BW 12550 DC battery, a 12-volt, 55-ampere-hour lead-acid battery designed for Pinellas County, Florida's Invitation to Bid #24-0161-ITB for Uninterruptible Power Source (UPS) batteries and traffic control equipment. The county seeks to procure 120 units of the BW 12550 DC model to replace non-functioning batteries in Myer UPS traffic controller cabinets, ITS cabinets, and Carmanah Flashing Solar Powered Speed Check Signs. The specification sheet documents the battery's physical dimensions (229.2mm length × 138.2mm width × 211.2mm height), weight (15.5 kg), and terminal construction using copper terminals with an internal resistance of approximately 7.5 milliohms when fully charged. The battery features a 20-hour rated capacity of 55 ampere-hours at 25 degrees Celsius, with a designed floating life of 10 years at 20 degrees Celsius. Operating temperature ranges span from -15 degrees Celsius to 55 degrees Celsius for discharge and -10 degrees Celsius to 50 degrees Celsius for charging, making it suitable for extreme outdoor temperature applications. The constant current discharge table provides detailed amperage output at various final voltages and time intervals from 10 minutes to 20 hours, while the constant power discharge table presents watt outputs across the same parameters.

The specification sheet includes comprehensive technical performance data addressing float charging voltage (13.50 to 13.80 volts with -18mV per degree Celsius temperature compensation) and cyclic charging voltage (14.50 to 15.00 volts with -30mV per degree Celsius temperature compensation), with a maximum charging current of 15 amperes and maximum discharge current of 500 amperes for 5-second intervals. The battery utilizes AGM (Absorbed Glass Mat) separator technology with lead dioxide positive plates, lead negative plates, and sulfuric acid electrolyte, providing reliable performance in stationary power applications. Self-discharge characteristics indicate that after three months at 25 degrees Celsius, the battery retains 91 percent of capacity; after six months, 82 percent; and after 12 months, 65 percent. Temperature-dependent capacity performance shows the battery operates at 102 percent capacity at 40 degrees Celsius, 100 percent at 25 degrees Celsius, 85 percent at 0 degrees Celsius, and 65 percent at -15 degrees Celsius. The manufacturer contact information is provided as 469.248.0380 or batterysales@bwgllc.com for additional technical inquiries or procurement questions related to this battery model for the Pinellas County contract opportunity.