Entwodiksyon
This manual provides essential information for the safe and efficient operation of your CTEK NXT 5 Smart Charger. The NXT 5 is a new generation 5A charger designed for advanced compatibility with 12V lead-acid and lithium (LiFePO4) batteries. It is built on the reliable CTEK MXS 5.0 platform, featuring a more durable design and award-winning Swedish technology.
Please read this manual carefully before using the charger to ensure proper function and to prevent damage to the unit or your battery.
Enfòmasyon sou Sekirite
Always prioritize safety when working with electrical equipment and batteries. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Ensure the charger is disconnected from the mains power before connecting or disconnecting the battery.
- Use the charger only for 12V lead-acid and lithium (LiFePO4) batteries. Do not attempt to charge other battery types.
- Avoid charging a frozen battery. Allow it to thaw before charging.
- Ensure adequate ventilation when charging, especially for lead-acid batteries, as they can emit explosive gases.
- Keep the charger away from water, moisture, and flammable materials. The unit is splash and dust-resistant but not submersible.
- Do not operate the charger if it has been damaged or dropped. Contact support for assistance.
- The charger is spark-free and protected against reverse polarity, enhancing safety during connection.
- Kenbe soti nan atenn timoun yo.
Karakteristik pwodwi
The CTEK NXT 5 charger incorporates several advanced features for optimal battery care:
- Advanced Compatibility: Charges 12V lead-acid (WET, MF, Ca/Ca, AGM, EFB, GEL) and lithium (LiFePO4) batteries from 1.2 Ah to 160 Ah.
- Mòd Rekondisyònman: Patented desulphation and reconditioning modes help restore the capacity of discharged or deeply discharged batteries, extending their lifespan.
- AGM Optimization: Maximizes charging efficiency for Start/Stop and AGM batteries, providing faster charging and maximizing lifespan.
- Automatic Temperature Compensation: Adapts charging parameters to ambient temperature, ensuring optimal performance in both hot and cold climates.
- Float/Pulse Maintenance: Keeps batteries in optimal condition for safe, long-term storage and readiness.
- Konsepsyon solid: Features durable rubber cables and a splash-proof, dust-resistant casing for longevity and intensive use.
- Karakteristik sekirite: Spark-free operation and reverse polarity protection ensure safety for sensitive vehicle electronics and the user.

Image: The CTEK NXT 5 Smart Charger displaying its mode indicators for different battery types and charging stages. This charger offers simple 'connect and forget' operation.

Image: The CTEK NXT 5 charger connected to a motorcycle battery, showcasing its robust design with durable rubber cables and splash-proof casing, built for intensive use and various conditions.
Enstalasyon
- Depale chajè a: Remove the CTEK NXT 5 charger and all accessories from the packaging.
- Chwazi yon kote: Place the charger on a stable, flat surface in a well-ventilated area, away from direct sunlight, heat sources, and flammable materials.
- Idantifye kalite pil la: Determine if your battery is a 12V lead-acid (WET, MF, Ca/Ca, AGM, EFB, GEL) or lithium (LiFePO4) type. This will influence the mode selection.
- Konekte ak batri a:
- Konekte cl wouj laamp nan tèminal pozitif (+) batri a.
- Konekte nwa clamp nan tèminal negatif (-) batri a. Si w ap chaje yon batri ki enstale nan yon machin, konekte klou nwa aamp nan chasi machin nan lwen batri a ak tiyo gaz la.
- Ensure connections are secure. The charger is protected against reverse polarity, but correct connection is always recommended.
- Konekte ak kouran prensipal la: Plug the charger's power cord into a suitable 12V AC wall outlet.

Image: The CTEK NXT 5 charger connected to a 12V battery, demonstrating its compatibility with both lead-acid and lithium (LiFePO4) battery types.
Enstriksyon Operasyon
The CTEK NXT 5 operates with a simple "connect and forget" principle, but proper mode selection is crucial.
- Pouvwa sou: Once connected to the battery and mains power, the charger will automatically start.
- Chwazi Mòd Chaje a: Press the "MODE" button to cycle through the available charging programs. The selected mode will be indicated by an illuminated LED.
- Normal (Car/Motorcycle icon): For most lead-acid batteries (WET, MF, Ca/Ca, GEL).
- AGM (AGM icon): For AGM and Start/Stop batteries.
- Recond (Recond icon): For reconditioning deeply discharged lead-acid batteries. Use this mode sparingly.
- Lithium (Lithium icon): For 12V LiFePO4 batteries.
Note: The charger automatically compensates for temperature, adjusting charging parameters for optimal performance in hot or cold conditions.
- Siveye chaje: The charger's display will show the current charging stage (CHECK, CHARGE, CARE).
- TCHEKE: Initial analysis of battery condition.
- CHAJ: Main charging phase.
- SWEN: Float/pulse maintenance charging, keeping the battery at optimal charge.
- Chaje konplè: The "CARE" LED will illuminate when the battery is fully charged and in maintenance mode. The charger can remain connected for extended periods for long-term maintenance.
- Dekonekte:
- First, disconnect the charger from the mains power outlet.
- Then, disconnect the black clamp from the negative (-) terminal or chassis.
- Finally, disconnect the red clamp soti nan tèminal pozitif (+).

Image: The CTEK NXT 5 charger connected to a car battery, illustrating its reconditioning capabilities to revive discharged or deeply discharged batteries and prolong their lifespan.

Image: The CTEK NXT 5 charger in use, demonstrating its automatic temperature compensation feature which adjusts charging for optimal battery performance in extreme hot or cold conditions.
Antretyen
The CTEK NXT 5 charger is designed for durability and requires minimal maintenance.
- Netwayaj: Wipe the charger casing with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners. Ensure the charger is disconnected from both mains and battery before cleaning.
- Enspeksyon kab: Enspekte kab chaje yo ak konektè yo regilyèman pou wè si gen nenpòt siy domaj, dezòd, oswa korozyon. Ranplase kab ki domaje yo imedyatman.
- Depo: Store the charger in a cool, dry place when not in use. Avoid extreme temperatures.
Depanaj
If you encounter issues with your CTEK NXT 5 charger, refer to the following common problems and solutions:
| Pwoblèm | Kòz posib | Solisyon |
|---|---|---|
| Charger does not start or no LEDs illuminate. | No mains power; incorrect battery connection; battery voltage twò ba. | Check mains power supply. Ensure correct polarity connection to battery. The charger may not start if battery voltage is below 2.0V for lead-acid or 8.0V for LiFePO4. |
| Error LED (if present) is lit. | Reverse polarity connection; short circuit; battery fault. | Check battery connections for correct polarity. Inspect cables for damage. If the issue persists, the battery may be faulty. |
| Chaje pran twòp tan. | Battery is deeply discharged; battery capacity is large; incorrect mode selected. | Deeply discharged batteries require more time. Ensure the correct mode (e.g., AGM for AGM batteries) is selected. |
| Chargeur a vin cho pandan l ap fonksyone. | Operasyon nòmal. | It is normal for the charger to become warm during charging. Ensure adequate ventilation. |
If these solutions do not resolve the issue, please contact CTEK customer support.

Image: The CTEK NXT 5 charger connected to a battery, highlighting its safety features such as spark-free operation and reverse polarity protection, ensuring safety for sensitive vehicle electronics.
Espesifikasyon
| Karakteristik | Detay |
|---|---|
| Mak | CTEK |
| Modèl | NXT 5 |
| Koulè | Nwa |
| Sòti Voltage | 12 Vòlt (DC) |
| Antre Voltage | 12 Vòlt (AC) |
| Chaje aktyèl | 5A |
| Konpatibilite batri | 12V Lead-acid (WET, MF, Ca/Ca, AGM, EFB, GEL) and Lithium (LiFePO4) |
| Kapasite batri | 1.2 Ah pou 160 Ah |
| Konfòmite | CE |
Garanti
The CTEK NXT 5 Smart Charger comes with a 5-ane garanti from the date of purchase. This warranty covers manufacturing defects and material faults under normal use. Please retain your proof of purchase for warranty claims.
The warranty does not cover damage caused by misuse, neglect, improper installation, unauthorized modifications, or normal wear and tear.
Sipò
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact CTEK customer support through their official websit oswa distribitè otorize.
Visit the official CTEK website for the latest information and support resources: www.ctek.com