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The CTEK CS ONE Gen 2 is a cutting-edge 12V smart battery charger with Wi-Fi and Bluetooth connectivity, enabling remote monitoring and control via the CTEK app. Featuring adaptive charging technology, polarity-free clamps, and advanced battery care modes, it supports all 12V lead-acid and lithium batteries. Designed in Sweden with premium build quality and backed by a 5-year warranty, it offers a seamless, safe, and intelligent charging experience for cars and motorcycles.
| ASIN | B0GLRG5ZWG |
| Best Sellers Rank | 17,190 in Automotive ( See Top 100 in Automotive ) 120 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) |
| Connector Types | clamp |
| Country of Origin | China |
| Customer Reviews | 3.2 out of 5 stars 4 Reviews |
| EU Spare Part Availability Duration | 7 Years |
| Input Voltage | 12 Volts (DC) |
| Input voltage | 12 Volts (DC) |
| Item Type Name | Smart Battery Charger |
| Item Weight | 1.2 Kilograms |
| Item weight | 1.2 Kilograms |
| 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 |
D**M
Excellent
Very good piece of kit
M**E
Poor Quality and Poor App.
This is an appalling charger. It doesn’t work. The App is glitched and does not recognise on Bluetooth the unit. Charger refuses to start. The instructions on the App do not solve the problem. It is an expensive unit with poor build quality and which doesn’t work. I’m stuck with mine as too late to return. So a total waste of a lot of money.
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
2 weeks ago
3 weeks ago