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FLOODED DEEP CYCLE BATTERY

6 CS 21P
Series 5000 Warranty See Warranty Terms
Volts 6 Design SPEC
Cells 3 Plates/Cell 21
Terminal Type Flag
Included Hardware S/S Hex Cap Screw, Nut, Lock & Flat Washer
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)
Self-Discharge Rate 5%-10% per month at 25°C (77°F)
Capacity
Cold Crank Amps (CCA) 0°F / -18°C 1742
Marine Crank Amps (MCA) 32°F / 0°C 2177
Reserve Capacity (RC @ 25A) 1705 Minutes
Reserve Capacity (RC @ 75A) 568 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 916 AH 9.16 A
@ 72 Hour Rate 867 AH 12.04 A
@ 50 Hour Rate 820 AH 16.41 A
@ 20 Hour Rate 710 AH 35.52 A
@ 15 Hour Rate 661 AH 44.04 A
@ 10 Hour Rate 632 AH 63.22 A
@ 8 Hour Rate 611 AH 76.36 A
@ 5 Hour Rate 568 AH 113.65 A
@ 1 Hour Rate 320 AH 319.64 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 122.5 kg 270 lbs
Length 559 mm 22"
Width 248 mm 9.75"
Height Incl. Term. 464 mm 18.25"
Product measurements & weights are calculated based on sample data. Individual specifications are subject to vary due to the manufacturing process & battery components.
Electrolyte Reserve 95 mm 3.75"
Container (Inner) Polypropylene
Cover (Inner) Polypropylene - heat sealed to inner container
Container (Outer) High Density Polyethylene
Cover (Outer) High Density Polyethylene snap fit to outer container
Handles Molded
  • 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.#5 | August 2024