CTEK PRO25S Professional Battery Maintainer/Charger


Designed to Fit:

  • Universal (All Porsche)

Product Details:

The CTEK PRO25S is an innovative, versatile, and highly efficient 25 A 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 (LiFePO4, Li-Fe, Li-iron, LFP), the PRO25S is the perfect solution to professional battery charging, in the workshop, or the showroom.

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 program to restore battery life & recondition dead 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 CTEK PRO25S battery charger 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.


  • Dedicated lithium (12V lithium batteries (LiFePO4, Li-Fe, Li-iron, LFP) mode
  • Compatible with batteries from 40 Ah to 500 Ah (30 Ah to 450 Ah lithium - LiFePO4, Li-Fe, Li-iron, LFP)
  • SUPPLY mode to support the battery during diagnostic or fault-finding work
  • Fully automatic and easy to use. Simple to connect, spark proof and reverse-polarity protected
  • Integrated safety features, so it’s safe for the battery & the vehicle
  • Built-in temperature sensor to achieve maximum charge levels
  • Dedicated lead-acid reconditioning program to restore battery life and recondition dead batteries
  • IP44 classified for outdoor use
  • Lightweight & highly portable
  • Tough & robust
  • 2-year warranty




About CTEK

CTEK Battery Maintainer Logo - Flat 6 Motorsports

CTEK: Maximizing Battery Performance
Maximizing Battery Performance isn’t just a slogan – it’s right at the heart of everything we do and every product we make.

It means we push the boundaries of research and development to bring new battery charging technologies to the market.

Our customers expect nothing but the best from our products, whether they’re using them at home, in the workshop, as an essential part of their day-to-day work, or even at the race tracks.

And we’re ahead of the competition because we constantly improve and constantly innovate.

Look around and you’ll see that our entire organisation lives and breathes this approach. Where others have diversified, we remain focused on maximising battery performance.

That’s why CTEK is the global market leader in battery management solutions.