CTEK Lithium US Smart Charger 4.3A

The CTEK Lithium US Smart Charger offers complete LiFePO4 battery care with its unique and patented system to Recover, Charge and Maintain. Maximize your lithium battery’s performance and lifespan with this fully automatic ‘connect and forget’ charger.




Plug & Play

The operation is simple and charging will commence upon connection. With no need to disconnect the battery from the vehicle, at charge start the LITHIUM US will automatically reset any low voltage protection electronics (Battery Management System) fitted. Charging can be restarted manually at any time using the ‘Reset’ button.

Fully Automatic

The CTEK LITHIUM US is a fully automatic ‘connect and forget’ charger with 8 charging steps including a testing sequence to show if the LiFePO4 battery can take and retain the charge, a unique maximization step to restore full capacity, and patented maintenance charging to ensure maximum performance even after months of inactivity. Splash-proof and dust-proof (IP65) the LITHIUM US is easy and safe to use, protects vehicle electronics, is spark-free, is reverse polarity protected and short circuit proof. The LITHIUM US features a 5-year warranty


  • CTEK PN: 56-926
  • Input voltage AC: 100-120VAC, 50-60Hz
  • Charge voltage: 13.8 / 14.4V
  • Charge current: Max 4.3A
  • Type of charger: 8-step, fully automatic charging cycle
  • Type of battery: 12V Lithium-Ion Phosphate (LiFePO4)
  • Battery Capacity: 5.0Ah – 60Ah, maintenance charging up to 120Ah
  • Protection Rating: IP65 (splash and dust proof)

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