CTEK US 0.8 Battery Maintainer/Charger


Designed to Fit:

  • Universal (All Porsche)

Product Details:

The unique display allows the user to follow the entire charging process. The CTEK 0.8 is a compact and fully automatic 6-step charger for 12V batteries from 1.2–32 Ah and is suitable for maintenance charging up to 100 Ah. The CTEK battery maintainer is splash and dustproof, delivers 0.8 A, and is designed to protect vehicle electronics. It is non-sparking, reverse polarity protected, and short circuit proof. The US 0.8 is delivered with a 5-year warranty. Alligator clamps and eyelets included.


  • Fully automatic charging and maintenance in 6 steps maximizes battery life and performance

  • Numerous accessories simplify using the same charger for multiple batteries

  • Water-resistant so that the solution can be taken to the problem even if it rains or snows

  • Patented maintenance charge for a unique combination of maximized life and performance

  • Patented desulphation that extends the battery life

  • No sparks, short-circuit proof and reverse-polarity protected for untroubled usage

Technical Specs:

Part No.


Input voltage AC

100-120VAC, 50-60Hz

Charging voltage


Minimum battery voltage required:


Charging current

Max 0.8 A

Type of charger

6 step, fully automatic charging cycle

Type of battery

12V lead-acid batteries

Battery capacity

1.2-32 Ah, up to 100 Ah for maintenance


5-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.