PRO25S AU, 40-200 |


PRO25S is the perfect battery support and charging solution to fully complement everyday workshop programming and diagnostic equipment.

Part no. 40-200

Professional Grade Power

Dedicated Lithium Mode

Supply Mode and Lead-Acid Reconditioning Mode

Automatic Temperature Sensor


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
  • Warranty: 2 years
  • Accessories: optional BUMPER 300 silicone protector and WALL HANGER 300 wall mounting kit
Related articles
Want to read more about this product? Here are some articles we recommend.
CTEK wins Nikkan Jidosha Shimbun Award
CASE STUDY | Low voltage | CTEK Partner Rotronics is supporting showroom battery charging
Looking after an ageing stock - CTEK advice for car dealers

Connect with CTEK on Socials

Are you interested in learning more about the CTEK brand, maximizing battery performance or sustainable charging? Follow us on @ctekcharging for inspiring updates and the latest news on our products and battery management solutions.