- COMPLETE LiFePO4 BATTERY CARE - Unique and patented system to recover, charge, and maintain LiFePO4 batteries to maximize performance and extend life.

- SAFE TO USE - User safety through spark-free operation and reverse polarity protection. Vehicle electrical safety through exceptionally clean voltage and current delivery with no surges or spikes. No need to disconnect the battery from the vehicle when charging.

- CONNECT AND FORGET - Simple plug and play operation. Manual reset available.

- UNIQUE 8-STEP CHARGING - The patented 8-step program tests battery condition and charges and maintains to ensure maximum LiFePO4 battery life and performance. Float/pulse maintenance ensures ideal battery care during periods of inactivity.

- EXTENDS BATTERY LIFE - The unique features of CTEK chargers combine to maximize performance and extend LiFePO4 battery life.

The LITHIUM US (Part No. 56-926) is an advanced microprocessor controlled charger specially designed to recharge and maintain the cells of Lithium-Iron (LiFePO4) batteries - maximizing their performance and lifespan. With up to 4.3A of charge current available the LITHIUM US is extremely flexible and will charge LiFePO4 batteries from 5Ah to 60Ah and maintain up to 120Ah.

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.

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 dustproof (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.

* This is a non-return item, please verify your application before you order.

See a visual demo of the 8-step smarter charging process


 Part No.


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)


5-year warranty