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The CTEK CS ONE Gen 2 is a premium 12V smart battery charger and maintainer designed for cars and motorcycles. Featuring Wi-Fi and Bluetooth connectivity, it offers real-time remote monitoring and adaptive charging tailored to lead-acid and lithium batteries. Its polarity-free clamps and advanced app-controlled battery care modes deliver safe, efficient charging with clear status updates and temperature compensation, all backed by a 5-year warranty.
| ASIN | B0GLRG5ZWG |
| Best Sellers Rank | 21,760 in Automotive ( See Top 100 in Automotive ) 158 in Car Battery Charging Units |
| Box Contents | CTEK CS ONE UK GEN 2 Battery Charger |
| Brand | CTEK |
| Brand Name | CTEK |
| Colour | Black |
| Compatible Devices | Cars, motorcycles, and other vehicles using 12V lead-acid or lithium batteries (LiFePO4) |
| Compatible devices | Cars, motorcycles, and other vehicles using 12V lead-acid or lithium batteries (LiFePO4) |
| Connector Types | clamp |
| Customer Reviews | 3.0 out of 5 stars 2 Reviews |
| EU Spare Part Availability Duration | 7 Years |
| Item Type Name | Smart Battery Charger |
| Manufacturer | CTEK |
| Manufacturer Part Number | 40-702 |
| Model Number | 40-702 |
| Number of Ports | 1 |
| Output Voltage | 12 Volts |
| Output voltage | 12 Volts |
| Specification Met | IEC, UL, CE, RoHS |
| Specification met | IEC, UL, CE, RoHS |
| Unit Count | 1.0 count |
A**R
Seamless delivery
This charger work differencely compare with regular Ctek. It can check and read checking status at anytime. Important, the build in timer accurate show the charging time. Delivery was seamless. It is one of best charger that ctek ever made. Importantly, the adapter work and connection work 100%.
R**S
Does not keep battery conditioned
Do not trust this to maintain your £1700 (+ labour) li-ion battery in a Porsche 911 (992). It'll charge it fine but I was under the impression that it then enters a battery maintenance mode to keep the battery conditioned. It doesn't. This was a very expensive lesson. I have now bought the official Porsche Charge-o-mat Pro charger, which ironically is also made by CTEK and clearly does enter a maintenance / reconditioning mode to keep the battery healthy during long periods of un-use.
Trustpilot
3 weeks ago
4 days ago