Optima

Optima D51T1

Category: Product ID: 1884

Description

Model Voltage
CCA (Amps)
Ah (@ C20)
RC (in mins)
Weight (kg)
Terminals
Dimensions** (L x W x H)(mm)
D51R-T1
12
450
38
66
11.8
– JIS small
238x129x229
D51R-T2
12
450
38
66
11.8 – SAE
238x129x229  
D51-T1
12
450
38 66
11.8
JIS small –
238x129x229  
D51-T2
12
450
38
66
11.8
SAE –
238x129x229  
D75/25
12
650
48
98
16
SAE –
238x173x199
D35
12
650
48
98
16.6
– SAE
238x173x199  
D34
12
750
55
120
19.6
SAE –
254x171x199
D34/78
12
750
55
120
19.9
SAE – 254x173x199
D27F 
12
830
66
140
24.4
– SAE
309x173x222
D31A
12
900
75
155
27.3
Centre SAE
329x171x238
D31T
12
900
75
155
27.3
Centre stud
329x171x238
 *Specifications may change without notice **Dimensions are overall maximum and include all handles

OPTIMA® YELLOWTOP® D51 Ultra high-performance SPIRALCELL TECHNOLOGY® AGM (absorbent glass mat) dual-purpose deep-cycle and starting battery. OPTIMA® YELLOWTOP® batteries have three times the cycling capability (rechargeability) with ultimate cranking power for your auto, car or truck to outperform traditional batteries. Perfect for powering heavy electrical loads, including winches, audio systems, inverters, and other demanding vehicle accessories and electronics. Lower internal resistance provides more efficient power output and faster recharges.

The OPTIMA® model number for this battery is D51. If you are replacing an OPTIMA® battery you already have, this model is the same as batteries marked 8071-167, 9071-167, 27951, YEL51, SC51DA, or N99D51YEL

Warranty: 3 years private use, all OPTIMA® have their warranty details on the top label and are honoured by the warranty stated on that label. 

Battery Model: D51T1
Part Number: 8071-167
NSN: 6140-01-523-6288
UPC Code: 8 11405 00007 2

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: “OPTIMA“ Yellow
Group Size: BCI: 51
Post Type: SAE Post
Weight: 11.8 KG
Length: 238 mm
Width: 129 mm
Height: 229 mm

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.
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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