

🔌 Charge smarter, drive further — never get caught powerless again!
The CTEK CS ONE is a premium 12V smart battery charger from Sweden featuring Adaptive Charging Technology for all lead-acid and lithium batteries. It offers polarity-free clamps for foolproof connection, advanced reconditioning and wake-up modes to restore battery health, and seamless app control for real-time monitoring. Designed for durability and ease, it’s the ultimate maintenance tool for cars and motorcycles, ensuring your battery stays charged and ready with minimal effort.











| ASIN | B09KS9T7DG |
| Best Sellers Rank | #2,312 in Automotive ( See Top 100 in Automotive ) #10 in Battery Chargers |
| Country of origin | Sweden |
| Item model number | 40-331 |
| Manufacturer | CTEK |
| Product Dimensions | 23.5 x 8.8 x 5.2 cm; 930 g |
A**Y
Highly recommend
This product is a state of art I tried with my car with several modes from mobile app its amazing
G**N
Fantastic charger. No skill needed. Connect and turn on, it does it all for you.
B**R
سمبتيك 😆
K**A
It has Bluetooth, and it charges pretty good. The charger is rather flimsy and the charging cords are not heavy duty. Kind of like going into Ikea store... They promote it's the world's best and all the hype... Etc.. But end of the day it's just a charger. But it's a good quality charger. That's about it.
A**R
Just the job for normal guy that doesn’t know what he’s doing lol very simple to use.
M**G
Very Disappointed – Completely Dead on First Use! I had a terrible experience with the CS One CTEK product. As soon as I plugged it into the power outlet, it didn’t respond at all — completely dead right out of the box. I tried different outlets and checked everything, but nothing worked. For a product from a brand like CTEK, I expected at least some basic functionality. This was a huge disappointment and a waste of money. I do not recommend this product based on my experience. Very Disappointed – Completely Dead on First Use! I had a terrible experience with the CS One CTEK product. As soon as I plugged it into the power outlet, it didn’t respond at all — completely dead right out of the box. I tried different outlets and checked everything, but nothing worked. To make things worse, when I contacted their customer service for help or a replacement, they completely ignored me. No support, no response — nothing. For a brand like CTEK, this level of quality and service is unacceptable. I do not recommend this product at all based on my experience. Very Bad Quality – Completely Dead As soon as I plugged it in, it never worked. The device was completely dead right out of the box. Very poor quality and a total waste of money.
Trustpilot
1 week ago
2 days ago