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)
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Description
CTEK 12V Lithium US Smart Charger 4.3AThe 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) Plug & Play The operation is simple and charging will
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.
8-Step Program
- Accept: Tests if the battery can accept charge. This step prevents that charging proceeds with a defect battery.
- Bulk: Charging with maximum current until approximately 90% battery capacity.
- Absorption: Charging with declining current to maximize up to 95% battery capacity.
- Analyze: Tests if the battery can hold charge. Batteries that can not hold charge may need to be replaced.
- Completion: Final charge with reduced current.
- Maximization: Final charge with maximum voltage up to 100% battery capacity.
- Float: Maintaining the battery voltage at maximum level by providing a constant voltage charge.
- 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.
Video Demo of 8-Step Smarter Charging Process
Features
- 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.
Specs
- 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)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
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Product Reviews
★★★★★ 5
Extremely hard and durable
Color: Blue
These are very hard , but my puppy lives them and my large dog can't tear them up, so that is a huge plus.
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Reviewed in the United States on April 8, 2026
★★★★★ 5
So cute and entertaining to watch!
Color: pink
Bought for my miniature schnauzer. She didn’t know what to think at first but loves it now. It’s so much fun watching her play and keeps her busy! My dog isn’t much of a chewer and loves the movement/chase of this toy. Wouldn’t recommend for big dogs or chewers as there’s a plastic piece that can come off.
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Reviewed in the United States on January 9, 2026
★★★★★ 1
I stops working & doesn't recharge
Color: blue
I just recieved this yesterday 5-23-2026. My new puppy loves it. But after it stopped working and I went to recharge it. it just will not recharge. I currently have it still trying to recharge. so I am not sure what to do other than trying to charge it. I may need to look for something else.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Let's play
Color: red&green
My dog loves this toy and he will play it until it dies the noise is fine the material is great the pets love it easy to recharge and keep your pet busy for a long time so good I had to buy a second set
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Reviewed in the United States on June 12, 2026
★★★★★ 3
Nice Idea But Won't Last With A Frenchie
Color: orange & blue, Color: orange & blue
My dogs loved the balls, however, withing 30 minutes, they were in pieces. Be careful because these parts can become choking hazards. Maybe they should try to make them a bit more sturdy, then I would buy again. Wish I could give them more stars because I liked them and the dogs did too.
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Reviewed in the United States on June 3, 2026