CTEK PRO25_CIC Battery Charger User Manual
- June 16, 2024
- CTEK
Table of Contents
- CTEK PRO25_CIC Battery Charger
- Product Information
- Product Usage Instructions
- How to Charge
- Charging Programs for Lead-Acid Batteries
- Charging Programs for Lithium Batteries
- Programs for Lithium Batteries
- Additional Information
- Indicator Lights
- Troubleshooting
- Support
- Frequently Asked Questions (FAQ)
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
CTEK PRO25_CIC Battery Charger

Product Information
Specifications
- Model: 50025160B
- Input Voltage: 12V
- Output Current: 25A
- Warranty: 2 years
- Multilingual Manual
This document is the user manual for the CTEK PRO25 CIC Battery Charger suitable for lead-acid batteries 40–500Ah and lithium batteries 30–450Ah. It is fully automatic and comes with a 2-year warranty.
| Feature | Specification |
|---|---|
| Model Number | 1093 |
| Input | 220-240 V AC, 50-60 Hz, 2.9 A |
| Output | 25A @ 12V |
| Fuse | 40 Amp regular ATC |
| Safety | Protection against reverse polarity, short-circuit, and sparks |
| Initial Voltage | Lead-acid batteries 2.0 V, Lithium-ion batteries 8.0 V |
| Leakage Current | Less than 2.3 Ah/month |
| Ripple | Less than 4% |
| Ambient Temperature | -20 °C to +50 °C (-4 °F to +122 °F) |
| Battery Types | 12V: WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePO4 |
| Battery Capacity | Lead-acid: 40–500 Ah, Lithium-ion: 30–450 Ah |
| Protection Index | IP44 |
| Warranty | 2 years |
Product Usage Instructions
How to Charge
Connect the charger to the battery following these steps:
- Connect the charger to the wall socket.
- Connect the battery clamps to the battery terminals, red to positive and black to negative.
- Press the MODE button to select the charging program.
- Follow the charger’s LED indicators for the charging status.
- The battery is fully charged when the green LED is lit.
- Disconnect the charger from the wall socket to stop charging.
Charging the Battery
- Connect the charger to the battery.
- Make sure the charger is plugged into a power source.
- Press the MODE button to select the desired charging program.
- Choose the appropriate program based on the type of battery you are charging.
Charging Programs for Lead-Acid Batteries
NORMAL
Standard battery program 14.4V/25A exclusively for lead-acid batteries.
RECOND
Reconditioning program 15.8V/1.5A for reviving deeply discharged wet, Ca/Ca, AGM, and EFB batteries.
SUPPLY
Supply program 13.6V/25A for supporting the battery during diagnostic work.
Charging Programs for Lithium Batteries
LITHIUM
Lithium program 13.8V/25A reserved for LiFePO4, Li-Fe, Li-iron, LFP batteries.
SUPPLY
Supply program 13.6V/25A for maintaining 12V during diagnostic work without limiting battery capacity.
Programs for Lead-Acid Batteries
| Program | Description | Charging Time |
|---|---|---|
| NORMAL | Normal battery program – 14.4V/25A. Only for lead-acid | |
| batteries. | 1.5 hours to 16 hours | |
| SUPPLY | Program for supplying power to the battery. | 3 minutes to 20 hours |
| RECOND | Reconditioning program for lead-acid batteries. | 2 hours to 20 hours |
Programs for Lithium Batteries
| Program | Description | Charging Time |
|---|---|---|
| LITHIUM | Program for charging lithium batteries (Li-FePO4, Li-Fe, | |
| Li-iron, LFP). | 10 minutes to 30 hours |
Additional Information
- Initial Voltage: Lead-acid batteries – 2.0V, Lithium-ion batteries – 8.0V
- Leakage Current: Less than 2.3 Ah/month
- Battery Compatibility: 12V: WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePO4
- IP Protection Rating: IP44
Indicator Lights
The charger has indicator lights to display the charging status:
- Green: No charge needed.
- Yellow: Charge recommended.
- Red: Charging required.
Error Indicator
If the error indicator light is on, check the following:
- Red clamp is correctly connected to the battery’s positive terminal.
- The charger is connected to a 12V battery.
- Clamps are not short-circuited.
- Charging has not been interrupted.
Troubleshooting
Power Indicator
If the power indicator light is on:
- Steady light means the charger is plugged into the wall socket.
- Flashing light indicates energy-saving mode activated if not connected to the battery within two minutes.
Support
For assistance, FAQs, the latest manual versions, and other information about CTEK products, please visit: www.ctek.com.
Frequently Asked Questions (FAQ)
Are the clamps short-circuited?
Please ensure that the clamps are not short-circuited.
What is the warranty period for this product?
The product comes with a 2-year warranty.
What types of batteries is the CTEK PRO25 CIC compatible with?
The charger is compatible with 12V lead-acid and lithium-ion batteries ranging from 40–500Ah and 30–450Ah, respectively.
How do I know when the battery is fully charged?
The battery is considered fully charged when the green LED indicator is lit.
What should I do if the error indicator lights up?
Refer to the troubleshooting section above and check the connections, battery type, and for potential short-circuits.
Is the charger protected against polarity reversal and short-circuiting?
Yes, the charger has built-in safety features to protect against reverse polarity, short-circuits, and sparks.
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>