Description
CTEK M25 AU
The CTEK M25 AU is the perfect 25A battery charger for larger boat batteries. It is designed with a range of functions to ensure your battery stays in optimal condition, including a Recond mode for reconditioning deeply discharged Wet and Ca/Ca batteries, and a temperature sensor that optimises the charge if the temperature deviates from +25ºC. The charger also has a dedicated lithium* mode for lithium batteries and comes with a 4-meter cable with M10 eyelets for easy installation on your boat. (*Lithium batteries: LiFePO4, Li-Fe, Li-iron, LFP)
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Features
- Dedicated Lithium* mode for charging lithium batteries.
- Compatible with batteries from 40Ah to 500Ah (30Ah to 450Ah for 12V lithium* batteries).
- Recond program for reconditioning deeply discharged batteries.
- AGM program for AGM batteries.
- Fully automatic and easy to use with simple “connect and forget” operation.
- Spark-proof and reverse-polarity protected for safety.
- Compact, tough design, ideal for marine environments.
- IP44 rated, making it suitable for outdoor use.
- No harmful galvanic currents to protect the battery.
- 5-year warranty for long-term reliability.
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Specifications
| Specifications Chart | |
| Part No. | M25 AU |
| Battery Capacity | 40Ah to 500Ah (30Ah to 450Ah for 12V lithium* batteries) |
| Charging Current | 25A |
| Charging Process | Fully automatic, multi-stage charging |
| Programs | Recond, AGM, and Lithium* |
| Temperature Sensor | Optimises charging for temperature deviations from +25ºC |
| Protection Features | Spark-proof, reverse-polarity protection, no harmful galvanic currents |
| Protection Class | IP44 (suitable for outdoor use) |
| Warranty | 5 years |
Disclaimer: All specifications are subject to change without notice to improve performance and reliability. CTEK is not responsible for damages beyond the stated warranty coverage.
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