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6FM33 12V 33Ah(20hr)

The rechargeable batteries are lead-lead dioxide systems. The dilute sulfuric acid electrolyte is absorbed by separators and plates and thus immobilized. Should the battery be accidentally overcharged producing hydrogen and oxygen, special one-way valves allow the gases to escape thus avoiding excessive pressure build-up. Otherwise, the battery is completely sealed and is, therefore, maintenance-free, leak proof and usable in any position.

Battery Construction

Component Positive plate Negative plate Container Cover Safety valve Terminal Separator Electrolyte Raw material Lead dioxide Lead ABS ABS Rubber Pb Fiberglass Sulfuric acid

General Features

  • Absorbent Glass Mat (AGM) technology for efficient gas recombination of up to 99% and freedom from electrolyte maintenance or water adding.
  • Not restricted for air transport-complies with IATA/ICAO Special Provision A67.
  • UL-recognized component.
  • Can be mounted in any orientation.
  • Computer designed lead, calcium tin alloy grid for high power density.
  • Long service life, float or cyclic applications.
  • Maintenance-free operation.
  • Low self discharge.

Dimensions and Weight

Length(mm / inch) 195 / 7.68

Width(mm / inch) 130 / 5.12

Height(mm / inch) 155 / 6.10

Total Height(mm / inch) 180 / 7.09

Approx. Weight(Kg / lbs) 10.2 / 22.5

Performance Characteristics

Nominal Voltage 12V

Number of cell 6

Design Life 10 years

Nominal Capacity 77oF(25oC)

20 hour rate (1.65A, 10.5V) 33Ah

10 hour rate (3.2A, 10.5V) 32Ah

5 hour rate (5.82A, 10.5V) 29.1Ah

1 hour rate (21.6A, 9.6V) 21.6Ah

Internal Resistance

Fully Charged battery 77oF(25oC) 10mOhms


3% of capacity declined per month at 20oC(average)

Operating Temperature Range

Discharge -20~60oC

Charge -10~60oC

Storage -20~60oC

Max. Discharge Current 77oF(25oC) 330A(5s)

Short Circuit Current 850A

Charge Methods: Constant Voltage Charge 77oF(25oC)

Cycle use 14.4-14.7V

Maximum charging current 9.9A

Temperature compensation -30mV/oC

Standby use 13.6-13.8V

Temperature compensation -20mV/oC

Discharge Constant Current (Amperes at 77oF25oC)

End Point

Volts/Cell 5min 10min 15min 30min 1h 3h 5h 10h 20h

1.60V 115 73.9 57.7 34.4 21.6 9.08 6.10 3.30 1.70

1.65V 109 70.2 54.8 33.3 21.4 8.89 6.04 3.30 1.70

1.70V 101 66.5 52.6 32.3 21.1 8.70 5.93 3.25 1.70

1.75V 93.4 62.8 49.7 31.2 20.8 8.50 5.82 3.20 1.65

1.80V 86.2 59.1 47.6 30.9 20.5 8.31 5.68 3.15 1.60

For more information or to order, please visit this products webpage.
This product was added to our catalog on Friday 13 October, 2006.
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