DS18 INF-C4A 4 AMP Automatic Smart Lithium and AGM Car Battery Charger & Maintainer

  • $69.99
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With DS18’s INF-C4A, it's easy to maintain and charge your battery to ensure it will operate at its MAX, delivering uninterrupted power to your sound system and elevating your experience to new heights.

Equipped with advanced charging and maintaining capabilities, the INF-C4A is designed to power a wide range of battery types; including Lead-Acid, Wet, Gel, AGM, and Lithium batteries using LiFePO4 cells. No matter the size and type of your battery, the INF-C4A effortlessly delivers a maximum output current of 4A, ensuring an efficient charging process. With voltage compatibilities for 6V and 12V systems, the INF-C4A is the most versatile charger available today.

The INF-C4A is equipped with a range of essential safety features, including thermal protection to prevent overheating, reverse connection protection to safeguard against accidental mistakes, and overcurrent/overcharge protection to maintain a healthy battery life. The INF-C4A also has an impressive IP54 protection rating. This means it is dust-tight, ensuring the internal components are shielded from any potential damage. This charger is also temperature tested and operates flawlessly in temperatures ranging from 0°C to +40°C.

DS18’s INF-C4A goes beyond standard charging and maintenance capabilities with it’s innovative repair mode. This advanced battery recovery mode can bring back batteries that have been neglected or plagued by common issues such as sulfation, stratification, or long periods of inactivity.

Intelligently designed to handle battery capacities ranging from 2Ah to an impressive 120Ah. Your battery’s size won’t matter, the INF-C4A provides the perfect charging and maintaining solution for all setups. DS18’s INF-C4A is an essential companion for every audio enthusiast.

Car Battery Not Included


  • Effortlessly delivers a maximum output current of 4A, guaranteeing swift and efficient charging.
  • Versatile compatibility with 6V and 12V battery systems, offering flexibility for a wide range of applications.
  • Supports battery capacities from 2Ah to an impressive 120Ah, catering to batteries of various sizes.
  • Advanced safety features including thermal protection, reverse connection protection, and overcurrent/overcharge protection.
  • Advanced battery recovery mode for repairing old, idle, stratified, or sulfated batteries
  • LED function display provides intuitive feedback for easy monitoring of the charging process.
  • Faulty battery indicator and faulty connection indicator ensure quick troubleshooting and seamless connections.
  • Sleek and robust housing with an IP54 protection rating, shielding internal components from dust and potential damage.
  • Operates flawlessly in temperatures ranging from 0°C to +40°C, ensuring reliable performance in any climate.
  • Boasts an efficiency rating of approximately 85%, maximizing power transfer and minimizing energy wastage.
  • Battery clamps provide a secure and reliable connection, making installation quick and convenient.

Great For

  • Car Audio
  • Pro Audio
  • Powersports
  • Motorcycle
  • Jeep
  • Bronco
  • Marine
Charger Type 8 Steps Charging / Maintainer
Maximum Output Current (Charging) 4A
Maximum Input Current Variable up to 75W (0.68A)
Battery Type Compatibility Lead-Acid, Wet, Gel, AGM, Calcium, Lithium (LiFePO4)
Battery Voltage Compatibility 6 / 12 Volts
Battery Capacity Compatibility 2~120Ah
AC Input 110-120VAC / 50-60Hz
6 Volts DC Output Current 2A or 4A
12 Volts DC Output Current 2A or 4A
24 Volts DC Output Current N/A
Minimum Start Voltage >3 Volts
Housing Protection Rate IP54
Temperature Operation 0°C to +40°C
Efficiency 85% Approx 
Overall Length 6.7" / 170mm
Overall Depth 3.5" / 90mm
Overall Height 2.2" / 56mm
AC Cord Length 6ft / 1.8m
DC Cord Length 4.2ft / 1.3m

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