FLOODED DEEP CYCLE BATTERY

S-280

Series 4000 Warranty 7 Years
Volts 12 BCI 921
Cells 6 Plates/Cell 9
Terminal Type DT
Included Hardware S/S Hex Cap Screw, Nut, Lock & Flat Washer
Size & Thread 5/16"-18 x 1-1/2"
Cables Optional: 19" 4/0 interconnect cable
Charge
Charge Voltage Range 2.45-2.5 V/cell @ 25°C (77°F)
Float Voltage Range 2.25 V/cell @ 25°C (77°F)
Recommended Charge Current Capacity (String) 25 A
Maximum Charge Current (String) 40 A
Self-Discharge Rate 5%-10% per month at 25°C (77°F)
Capacity
Cold Crank Amps (CCA) 0°F / -17°C 648
Marine Crank Amps (MCA) 32°F / 0°C 810
Reserve Capacity (RC @ 25A) 406 Minutes
Reserve Capacity (RC @ 75A) 107 Minutes
Hour Rate Capacity / AMP Hour Current / AMPs
@ 100 Hour Rate 279 AH 2.79 A
@ 75 Hour Rate 265 AH 3.68 A
@ 50 Hour Rate 250 AH A
@ 20 Hour Rate 210 AH 10.5 A
@ 15 Hour Rate 200 AH 13.3 A
@ 10 Hour Rate 185 AH 18.48 A
@ 8 Hour Rate 181 AH 22.58 A
@ 5 Hour Rate 166 AH 33.88 A
@ 1 Hour Rate 84 AH 84 A

Amphere hour capacity ratings based on specific gravity of 1.280.
Reduce capacities 5% for specific gravity of 1.265 and 10% for 1.250.

Specifications
Weight 61 kg 134.5 lbs
Length 39.1 cm 15.38"
Width 17.8 cm 7"
Height Inc. Term. 36.5 cm 14.38"
Product measurements & weights are calculated based on sample data. Individual specifications are subject to vary due to the manufacturing process, battery components & electrolyte levels.
Electrolyte Reserve 51 mm 2"
Container Polypropylene
Cover Polypropylene
Handles Rope / Plastic Handle

Cycle Life vs. Depth of Discharge

Voltage vs. Depth of Discharge

Rev.#3 | May 2018