Optima battery Yellow Top series 8073-167 D51R

Battery Model:	D51R
Part Number:	8073-167
NSN:	Number applied for, product currently available
UPC Code:	8 11405 00008 9

Performance Data
Cold Cranking Amps:	450
Cranking Amps:	575
Nominal Voltage:	12 volts
Open Circuit Voltage (fully charged):	13.1 volts
Internal Resistance (fully charged):	0.0046 ohms
Capacity:	38 Ah (C/20)
Reserve Capacity:	BCI: 66 minutes (25 amp discharge, 80°F (26.7°C ), to 10.5 volts cutoff)

Physical Characteristics
Plate Design:	High purity lead-tin alloy. Wound cell configuration utilizing proprietary SPIRALCELL TECHNOLOGY^®.
Electrolyte:	Sulfuric acid, H₂SO₄
Case:	Polypropylene
Case Color:	Light Gray
Cover Color:	â€œOPTIMAâ€œ Yellow
Group Size:	BCI: 51
Post Type:	SAE Post
Weight:	26 lb
Length:	9.31 in
Width:	5.06 in
Height:	8.94 in

Power
CCA (BCI 0°F):	450 amps
MCA (BCI 32°F):	575 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: D51 and D51R These batteries are designed for starting and deep cycling applications and for use in vehicles with large accessory loads.

Recommended Charging Information
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 (Constant voltage charger):	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. All limits must be strictly adhered to.
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 2 amp constant current for 1 hour.

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Optima battery Yellow Top series 8073-167 D51R

Performance Data

Physical Characteristics

Power

Recommended Charging

Recommended Charging Information