CTEK Lithium US

4.3A Lithium Smart Charger & Maintainer

The LITHIUM US (CTEK 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.
(Choosing a Charger)

1. Accept: Tests if the battery can accept charge. This step prevents that charging proceeds with a defect battery.
2. Bulk: Charging with maximum current until approximately 90% battery capacity.
3. Absorption: Charging with declining current to maximize up to 95% battery capacity.
4. Analyze: Tests if the battery can hold charge. Batteries that can not hold charge may need to be replaced.
5. Completion: Final charge with reduced current.
6. Maximization: Final charge with maximum voltage up to 100% battery capacity.
7. Float: Maintaining the battery voltage at maximum level by providing a constant voltage charge.
8. Pulse: Maintaining the battery at 95-100% capacity. The charger monitors the battery voltage and gives a pulse when necessary to keep the battery fully charged.