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Optima D31A duel purpose battery 900cca


Product Code: ORC_AAAARARR
Availability: In Stock

New Optima D31A heavy duty battery

Nissan patrol landcruiser landrover GQ GU

Battery Model: D31A
Part Number: 8051-160
Nominal Voltage: 12 volts
NSN: 6140 01 502 4973

Description: High power, dual purpose engine start and

deep cycle, sealed lead acid battery

Physical Characteristics:

Plate Design: High purity lead-tin alloy. Wound cell configuration utilizing proprietary

SPIRALCELL® technology.

Electrolyte: Sulfuric acid, H2SO4

Case: Polypropylene

Color: Case: Light Gray

Cover: “OPTIMA” Yellow

Group Size: BCI: 31

Standard Metric








59.8 lb

324.46 mm

165.84 mm

237.62 mm (Height at the top of terminals)

27.1 kg

Terminal Configuration: SAE / BCI automotive.

Performance Data:

Open Circuit Voltage (Fully charged): 13.1 volts

Internal Resistance (Fully charged): .0025 ohms

Capacity: 75 Ah (C/20)

Reserve Capacity: BCI: 155 minutes

(25 amp discharge, 80°F (26.7°C), to 10.5 volts cut-off)


CCA (BCI 0°F): 900 amps

MCA (BCI 32°F): 1125 amps

Recommended Charging:

The following charging methods are recommended to ensure a long battery life: (Always use a

voltage regulated charger with voltage limits set as described below.)

Model: D31A

These batteries are designed for starting and deep cycle applications and for use in vehicles

with large accessory loads.

Recommended Charging Information:

Alternator: 13.65 to 15.0 volts

Battery Charger (Constant Voltage): 13.8 to 15.0 volts; 10 amps maximum; 6-12 hours approximate

Float Charge: 13.2 to 13.8 volts; 1 amp maximum; (indefinite time at lower voltages)

Rapid Recharge: Maximum voltage 15.6 volts. No current limit as long as battery

(Constant voltage charger) temperature remains below 125°F (51.7°C). Charge until

current drops below 1 amp.

Cyclic or Series String Applications: 14.7 volts. No current limit as long as battery temperature

remains below 125°F (51.7°C). When current falls below 1 amp,

finish with 3 amp constant current for 1 hour.

All limits must be strictly adhered to.

Recharge Time: (example assuming 100% discharge – 10.5 volts)

Current Approximate time to 90% charge

100 amps

50 amps

25 amps

52 minutes

112 minutes

210 minutes

Recharge time will vary according to temperature and charger characteristics. When using

Constant Voltage chargers, amperage will taper down as the battery becomes recharged. When

amperage drops below 1 amp, the battery will be close to a full state of charge.

(All charge recommendations assume an average room temperature of 77°F (25°C).

Always wear safety glasses when working with batteries.

Always use a voltage regulated battery charger with limits set to the above ratings. Overcharging

can cause the safety valves to open and battery gases to escape, causing premature end of life.

These gases are flammable! You cannot replace water in sealed batteries that have been

overcharged. Any battery that becomes very hot while charging should be disconnected


Not fully charging a battery can result in poor performance and a reduction in capacity.

Shipping and Transportation Information:

OPTIMA batteries can be shipped by AIR. The battery is nonspillable and is tested according to

ICAO Technical Instructions DOC. 9284-AN/905 to meet the requirements of Packing Instructions

No. 806 and is classified as non-regulated by IATA Special Provision A-48 and A-67 for UN2800.

Terminals must be protected from short circuit.

Manufacturing Location:

Enertec Exports S. de R.L. de C.V.

RFC: EEX020516KU2

Avenida. del Parque No. 2155

Monterrey Technology Park

Cienega de Flores, N.L. 65550


Phone: 52 (81) 81542300

Fax: 52 (81) 81542301

BCI = Battery Council International

OPTIMA Batteries