CTEK - PRO 25S Battery Charger and Power Supply 25A

12V | Portable workshop power and charging PRO25S is light and portable and ideal for technicians use in the busy workshop. It’s fully automatic so it’s easy to use and its reliable, 12V power supply keeps the vehicle’s stored data safe and prevents damage to sensitive ECUs and other vehicle electronics. It features fast, 8-step charging, temperature compensation for ambient conditions between -20°C and +50°C (-4°F to +122°F), and is suitable for use with any 12V battery, including lithium*. PRO25S features automatic parallel load compensation so power supply and amperage are always constant and accurate, even if an additional load is placed on the battery during diagnostics. It also has a ‘RECOND’ mode to bring deeply discharged lead-acid batteries back to life and a lithium ‘wake up’ mode for batteries with under voltage protection. *) 12V lithium batteries (LiFePO4, Li-Fe, Li-iron, LFP)

• Up to 25A of battery support
• 12V power supply support for code reading, electrical circuit testing and fault finding
• Fast, fully automatic 8-step charging
• ‘RECOND’ step for to bring deeply discharged lead-acid batteries back to life
• Suitable for 12V lead-acid, WET, Ca/Ca, AGM, MF, GEL and lithium* batteries
• Charger type: 8-step, fully automatic charging cycle
• Work with all 12V battery types, including Lithium* (LiFePO4)
• Battery capacity: 40-500Ah (lead-acid); 30-450 Ah (lithium)
• Low 2V start up voltage for charging
• Extremely low ripple
• Automatic parallel load compensation
• Automatic temperature compensation
• Degree of protection: IP44
• Accessories: optional BUMPER 300 silicone protector and WALL HANGER 300 wall mounting kit
• 100% original & genuine from CTEK
• Warranty: 2 YEARS Warranty

TECHNICAL DATA

• Input220–240 VAC, 50–60 Hz, 2.9 A
• Output14.4/15.8/13.6 V, 25 A, lead-acid battery types. 13.8 V/14.4 V/13.3 V, 25 A, LiFePO₄.
• Battery capacity40–500 Ah, lead-acid battery types. 30–450 Ah, LiFePO₄.
• Charging categoryAC charging
• Back current drain*Corresponding to less than 1 Ah/month
• Battery voltage12 V
• Battery chemistryLead acid; Lithium-ion
• Ambient operating temperature-20 ˚C to +50 ˚C
• CoolingFan
• Start voltage2.0 V
• Ripple**Less than 4 %
• Battery types12 V:; WET; MF; Ca/Ca; AGM; EFB; GEL; LiFePO₄
• Degree of protectionIP44
• Gross weight (unit in box)2.2 kg
• Dimensions (L x W x H)235 x 130 x 65 mm
• Charging cable length (output)2 m
• Net weight (unit with cables)1.8 kg
• Warranty2 years
• Power SupplyMax. 25 A, 13,6 V
• Parallel LoadAutomatic
• Charging VoltageLead acid: 14.4V/15.8V/13.6V Lithium: 13.8V/14.4V/13.3V

Important Considerations Before Purchasing a CTEK Charger:

1. Battery lifespan under 2 years: If your car battery is less than 2 years old, the CTEK charger might be able to charge it, depending on its current voltage. However, the overall condition of the battery will determine whether it can be fully revived.

2. Battery voltage 2 volts and above: The CTEK charger operates effectively when the battery voltage is at or above 2 volts. If the voltage drops below 2 volts, and especially if it's between 0-2 volts, the Battery Management System (BMS) may lock the battery to prevent further discharge and damage. In such cases, the CTEK charger is unlikely to charge the battery due to the BMS lock. To avoid this issue, make sure to charge your battery before it reaches such a low voltage. If the battery is locked, only a professional may be able to unlock it, though success is not guaranteed. Pre-charging by a professional may be required before using the CTEK charger.

3. CTEK charger limitations: While the CTEK charger can help extend your battery’s life, it may not be able to revive a battery that can no longer accept a charge or hold a charge anymore. If the charger detects issues such as very low voltage or significant battery deterioration, it will display a red LED warning light, indicating that the battery may require professional attention or replacement, as it might be beyond recovery.