D31A Optima Battery Yellow Top Start/Cycle 12v

Specifications

Model:
D31A
Weight:
59.8 lb
C20 Capacity:
75 Ah
Post Type:
SAE Post
CCA:
900 Amp
Width:
6.56 in
Length:
12.81 in
Height:
9.38 in
Reserve Capacity @25 Amps:
155 Minutes
Voltage:
12 Volts
Case Material:
Polypropylene
Case Color:
Light Gray
Cover Color:
"OPTIMA" Yellow
Group Size:
BCI: 31
Internal Resistance:
0.0025
NSN:
6140 01 502 4973
Plate Design:
High purity lead-tin alloy. Wound cell configuration utilizing proprietary
SPIRALCELL TECHNOLOGY®.

Electrolyte:
Sulfuric acid, H2SO4

MCA:
1125 amps
Alternator:
13.65 to 15.0 volts
Battery Charger:
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 temperature remains below 125°F (51.7°C). Charge until current drops below 1 amp.
Shipping Info:
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.

Recommended Charging Details:
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 cycling applications and for use in vehicles with large accessory loads.

Cyclic or Series:
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 2 amp constant current for 1 hour.
All limits must be strictly adhered to.

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