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FLOODED DEEP CYCLE BATTERY

6 FS 305-HC

Series FS Warranty 1 Year
Volts 6 Design 902
Cells 3 Plates/Cell 17
Terminal Type DT
Included Hardware Stainless Steel K-Lock Nut
Size & Thread 5/16"-18
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 40 A
Maximum Charge Current 65 A
Self-Discharge Rate 5%-10% per month at 25°C (77°F)
Capacity
Cold Crank Amps (CCA) 0°F / -18°C 878
Marine Crank Amps (MCA) 32°F / 0°C 1097
Reserve Capacity (RC @ 25A) 619 Minutes
Reserve Capacity (RC @ 75A) 163 Minutes
Capacity Affect by Temperature 40°C
(104°F)
25°C
(77°F)
0°C
(32°F)
-15°C
(5°F)
105% 100% 75% 50%
Hour Rate Capacity / AMP Hour Current / AMPs
@ 100 Hour Rate 410 AH 4.10 A
@ 72 Hour Rate 403 AH 5.60 A
@ 50 Hour Rate 381 AH 7.62 A
@ 20 Hour Rate 320 AH 16.00 A
@ 15 Hour Rate 304 AH 20.27 A
@ 10 Hour Rate 282 AH 28.16 A
@ 8 Hour Rate 275 AH 34.4 A
@ 5 Hour Rate 253 AH 50.56 A
@ 1 Hour Rate 128 AH 128.00 A

Ampere hour capacity ratings based on specific gravity of 1.280 at 27°C (80°F).
Reduce capacities 5% for specific gravity of 1.265 and 10% for 1.250.

Specifications
Weight 44 kg 97 lbs
Length 311 mm 12.25"
Width 181 mm 7.13"
Height Incl. Term. 362 mm 14.25"
Product measurements & weights are calculated based on sample data. Individual specifications are subject to vary due to the manufacturing process & battery components.
Electrolyte Reserve 44 mm 1.75"
Container Polypropylene
Cover Polypropylene
Handles Rope / Plastic Handle
  • Plastics are UL94 HB (UL94-V2 available)
  • Plastics are impact copolymer rated to ASTM D256, D5420
  • Vented design with integral flame arrestor vent caps

Cycle Life vs. Depth of Discharge

Voltage vs. Depth of Discharge

Detailed Illustration

Rev.#4 | August 2024