Spec_Sheet_-_BWG_BW-12550-final.pdf
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- Attached to
- Traffic UPS, Batteries, Traffic & Solar Flashers
- Solicitation number
- 24-0161-ITB
- Issued by
- Pinellas County, Florida
About this file
This specification sheet documents the technical characteristics of the Bright Way BW-12550 DC battery, a 12-volt, 55-ampere-hour lead-acid battery designed for use in Pinellas County, Florida's Invitation to Bid #24-0161-ITB for Uninterruptible Power Source (UPS) Batteries, Traffic & Solar Flashers. The solicitation requires 120 units of the BW-12550 DC battery model to replace non-functioning batteries in Myer UPS traffic controller cabinets, ITS cabinets, and Carmanah flashing solar-powered speed check signs. Proposals were due on March 28, 2024, at 3:00 pm, with vendor questions accepted until March 21, 2024. The initial contract term is 12 months with potential for four additional 12-month extensions. Deliveries are accepted Monday through Friday from 8:00 am to 5:00 pm at 22211 U.S. Highway 19 North, Building 1, Clearwater, Florida.
The BW-12550 DC battery features dimensions of 229.2 mm (length) x 138.2 mm (width) x 211.2 mm (height) with an approximate weight of 15.5 kg, employs AGM (Absorbent Glass Mat) technology with lead dioxide positive plates and lead negative plates, and operates across a temperature range of -15°C to 55°C for discharge and -10°C to 41°C for charging. The battery provides a 20-hour rated capacity of 55 Ah at 25°C, with constant current discharge capabilities ranging from 109 amperes at 10 minutes to 2.70 amperes at 20 hours. The unit features a maximum charging current of 15 amperes, maximum discharge current of 500 amperes over five seconds, a designed floating life of 10 years at 20°C, and self-discharge characteristics retaining 91 percent capacity after three months and 65 percent capacity after 12 months. Batteries must be date-stamped upon installation with unconditional free replacement for any battery failures, and vendor delivery must include transportation with no additional fees, with a total contract expenditure cap of $1,825,000.00 covering all three battery types specified in the procurement.
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Text version
469.248.0380 | batterysales@bwgllc.com
POWERING PERFORMANCE
BW 12550 DC (12V55Ah)
SPECIFICATIONS
DIMENSIONS
TERMINAL
CONSTRUCTION
Component Positive plate Negative plate Container Cover Separator Electrolyte Safety valve Terminal
Raw material Lead dioxide Lead ABS ABS AGM Sulfuric acid Rubber Copper
CONSTANT CURRENT DISCHARGE CHARACTERISTICS (A, 25℃)
F.V/TIME 10min 15min 30min 60min 2h 3h 4h 5h 8h 10h 20h 9.60V 109 84.0 50.3 30.9 18.3 13.0 10.5 8.98 6.17 5.09 2.70 9.90V 106 82.0 49.2 30.4 18.2 12.9 10.4 8.92 6.13 5.08 2.69 10.2V 101 79.0 47.7 29.7 18.0 12.8 10.4 8.86 6.09 5.07 2.68 10.5V 97.0 76.3 46.6 29.0 17.7 12.8 10.3 8.80 6.05 5.04 2.67 10.8V 91.6 72.2 44.9 28.1 17.3 12.4 9.99 8.54 5.87 5.00 2.65
Nominal Voltage 12 V
Capacity (25℃)
20HR 55 Ah 5HR 44 Ah 1HR 30.5 Ah
Dimension
Length 229±2mm (9.02inch)
Width 138±2mm (5.43inch)
Height 211±2mm (8.31inch)
Total Height 214±2mm (8.43inch)
Approx. Weight 15.5kg (34.2lbs)±4% Terminal type Z (Pic) or M6
Internal resistance (Fully charged, 25℃) Approx. 7.5mΩ
Capacity affected by temperature
(10HR)
40℃ 102% 25℃ 100% 0℃ 85%
-15℃ 65%
Self-discharge (25℃)
3 month Remaining Capacity: 91% 6 month Remaining Capacity: 82%
12 month Remaining Capacity: 65% Nominal operating temperature 25℃±3℃(77℉±5℉)
Operating temperature range
Discharge -15℃～50℃(5℉～122℉) Charge -10℃～50℃(14℉～122℉) Storage -20℃～50℃(-4℉～122℉)
Float charging voltage(25℃)
13.50 to 13.80V Temperature compensation:
-18mV/℃
Cyclic charging voltage(25℃)
14.50 to 15.00V Temperature compensation:
-30mV/℃
Maximum charging current 15A Maximum discharge current 500 A(5 sec.)
Designed floating life(20℃) 10 years
469.248.0380 | batterysales@bwgllc.com
POWERING PERFORMANCE
CONSTANT POWER DISCHARGE CHARACTERISTICS (WATT, 25℃)
F.V/TIME 10min 15min 30min 60min 2h 3h 4h 5h 8h 10h 20h 9.60V 1177 922 564 352 212 153 124 106 73.3 60.8 32.4 9.90V 1142 900 553 347 210 152 123 105 72.9 60.7 32.3 10.2V 1095 867 536 338 208 151 122 105 72.4 60.5 32.2 10.5V 1048 837 523 331 205 150 121 104 71.9 60.1 32.0 10.8V 989 793 503 321 200 145 117 101 69.7 59.7 31.8
Note: The above characteristics data can be obtained within three charge/discharge cycles.
Discharge Characteristics (25℃)
The Relationship for Open Circuit Voltage and Residual Capacity (25℃)
Floating Life on Temperature
Effect of Temperature on Capacity
Charging Characteristics (25℃)
The Relationship for Charging Voltage and Temperature
Cycle Life on D.O.D (25℃)
Self-discharge Characteristics
Charged Volume
Charge Voltage
Charging Current discharge% Depth of 30
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