AUX12 Auxiliary and Start/Stop Battery, by East Penn


The AUX12, by East Penn / Deka, is found in hybrid and start-stop vehicles to act as an auxiliary power source to maintain power to vehicle electronics. The AUX12 is a factory installed battery in many hybrid and start-stop foreign and domestic vehicles.


  • Premium AGM Technology
    • Superior glass mat electrolyte retention and protection against vibration maximizes long-term capacity.
  • Individual Cell Venting System
    • Optimized valve-regulated and internal moisture creation process extends battery performance at maximum efficiency.
  • Reinforced Poly Composite Case and Cover
    • Resists heat and damage while enhancing internal compression to extend life. 
  • Power-Perform - Full Frame Plates
    • Combine a highly efficient current network with high-energy storage to optimize power performance. 
More Information
Part Number AUX12
Battery Voltage 12 Volt
Cold Cranking Amps 180
Capacity 10
Battery Type Sealed Maintenance Free
Battery Chemistry Absorbed Glass Mat
Includes Acid Pack Factory Activated
Battery Length 5-7/8"
Battery Width 3-7/16"
Battery Height 5-1/8"
Warranty 1 Year
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