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CTEK PRO25S 12V 25A Battery Charger

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CTEK PRO25S 12V 25A Battery Charger Review  |  Q&A  | 


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CTEK Pro Trolley, Charge Station

CTEK Pro Trolley, Charge Station

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CTEK PRO25S 12V 25A Battery Charger, 2 Year Warranty

Product Description

CTEK PRO25S 12V 25A Battery Charger, 2 Year Warranty. The PRO25S is an innovative, versatile and highly efficient 25A battery charger and power supply, designed around the needs of the automotive professional. Combining power & advanced technology with safety, portability and flexibility to work with any 12V vehicle battery including lithium*, the PRO25S is the perfect solution to professional battery charging, in the workshop or the showroom. *) 12V lithium batteries (LiFePO4, Li-Fe, Li-iron, LFP)

Advanced technology will ensure that a safe, fast charge is delivered to exactly meet the needs of the individual battery. The PRO25S has a dedicated lead-acid battery reconditioning programme to restore battery life & recondition flat batteries. SUPPLY mode will support the battery during diagnostic or fault finding work. It has low voltage & current ripple, so it’s safe for the battery & the vehicle’s delicate electronic systems. Fully automatic & easy to use, it’s also very simple to connect, spark proof and reverse-polarity protected to protect the user & also the battery. The PRO25S is designed to ensure easy handling in both the workshop & the showroom. Whilst it’s lightweight & portable, the rugged, impact-resistant casing means it can also handle the toughest workshop environment.

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CTEK PRO25S Product Manual


Short Description

CTEK PRO25S 12V 25A Battery Charger, 2 Year Warranty

GTIN (Global Trade Item Number) 7340103402008
Brands CTEK
Model PRO25S
Output Current Rating (Amps) 25.0 Amps
Input 220–240VAC, 50–60Hz, 2.9A max
Output Lead-acid battery types: 14.4V/15.8V/13.6V, 25A max | LiFePO4: 13.8V/14.4V/13.3V, 25A max
Start Voltage 2.0V
Output System Voltage 12V
Back Current Drain Corresponding to less than 1Ah/month
Ripple* Less than 4%
Ambient Temperature -20˚C to +50˚C
Insulation Class IP44
Battery Types WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePO4
Battery Capacity Lead-acid battery type: 40–500Ah | LiFePO4: 30–450Ah
Dimensions 235 x 130 x 65 mm (L x W x H)
Net Weight (kg) 1.8 Kg
Included 2m DC Cable & 1.9m AC Cable
Manufacturers Warranty 2 Years

Product Videos

CTEK 8 Step Charging


Tutorials - PRO25 - What is in the box


Tutorials - PRO25 - How to connect


Tutorials - PRO25 - Charging

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  • Q:I am looking for a charger for my caravan. 20/25 amps 240v ac. l want to run the solar power through it. At the moment i have a ctek mxs 25 is that suitable? I would prefer to stay with ctek brand. Regards John
  • Q:What size battery charger do I need for my lead acid battery I have in my camper?

    A good battery charger rule of thumb for charging a lead acid battery, is using a charger with output current (amps) of 10-20% of the battery total stored capacity (Ah).

    So, for example if the battery is 12V 100Ah, the charger need to be minimum of 10A and maximum of 20A.  Often splitting the difference at 15% (so a 12V ~15A charger) is a good option. Happy charging!



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