Optima D34 Car Battery Yellow Top

Deep Cycle / Starting Battery

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Pick Up Available at our Show room at 8/419-425 Old Geelong Rd, Hoppers Crossing VIC 3029

OPTIMA® YELLOWTOP® D34 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 D34. If you are replacing an OPTIMA® battery you already have, this model is the same as batteries marked 8012-021, 9012-021, 27992, SC34DA, N9934YEL or YEL34.

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:


Part Number:



6140 01 457 5392

UPC Code:

8 11405 00021 8

Performance Data

Cold Cranking Amps:


Cranking Amps:


Nominal Voltage:

12 volts

Open Circuit Voltage (fully charged):

13.1 volts

Internal Resistance (fully charged):

0.0028 ohms


55 Ah (C/20)

Reserve Capacity:

BCI: 120 minutes (25 amp discharge, 80°F (26.7°C), to 10.5 volts cut-off)

Physical Characteristics

Plate Design:

High purity lead-tin alloy.  Wound cell configuration utilizing proprietary SPIRALCELL TECHNOLOGY®.


Sulfuric acid, H2SO4



Case Color:

Light Gray

Cover Color:

“OPTIMA“ Yellow

Group Size:

BCI: 34

Post Type:

SAE Post


18 KG


254 mm


171 mm


199 mm


CCA (BCI 0°F):

750 amps

MCA (BCI 32°F):

870 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: D34
These batteries are designed for starting and deep cycling applications and for use in vehicles with large accessory loads.

Recommended Charging Information


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. 




SKU d34
Brand Optima
Shipping Weight 20.0000kg
Shipping Width 0.350m
Shipping Height 0.250m
Shipping Length 0.310m
Shipping Cubic 0.027125m3

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