Ctek CS ONE (GEN2) 12V Smart Battery Charger and Maintainer W/App Control

The CTEK CS ONE Gen 2 is an advanced 12V smart battery charger and maintainer with Wi-Fi and Bluetooth app control. Its APTO Adaptive Charging technology automatically identifies the battery type, size, and condition, then selects the appropriate charging program without requiring manual settings.

Designed for cars, motorcycles, vans, boats, recreational vehicles, and other 12V applications, it supports both lead-acid and LiFePO4 lithium batteries. Polarity-free clamps simplify connection, while the CTEK app provides charging status, history, notifications, and access to additional charging programs.

Key Features

• APTO Adaptive Charging technology automatically adjusts the charging process
• Compatible with 12V lead-acid and LiFePO4 lithium batteries
• Wi-Fi and Bluetooth connectivity for app-based control
• CTEK app provides charging status, history, alerts, and reminders
• Polarity-free clamps can be connected to either battery terminal
• Maximum charging output of 8A
• RECOND program helps restore deeply discharged lead-acid batteries
• WAKE UP program activates lithium batteries with undervoltage protection
• SUPPLY program supports the vehicle during service or battery replacement
• Automatic temperature compensation for reliable charging in changing conditions
• Safe for long-term battery maintenance
• Spark-free operation with reverse-polarity and short-circuit protection
• IP65-rated housing resists dust and water splashes
• Suitable for cars, motorcycles, vans, boats, and recreational vehicles

Basic Specifications

• Brand: CTEK
• Model: CS ONE Gen 2 NA
• Product Type: Smart Battery Charger and Maintainer
• Battery Voltage: 12V
• Maximum Charging Current: 8A
• Battery Capacity Range: 3 Ah to 180 Ah
• Compatible Battery Types: WET, MF, Ca/Ca, AGM, EFB, GEL, and LiFePO4
• Battery Chemistry: Lead-Acid and Lithium-Ion
• Input Voltage: 110V to 120V AC
• Minimum Start Voltage: 1.8V
• Connectivity: Wi-Fi and Bluetooth
• App Compatibility: Android and iOS
• Operating Temperature: -30°C to 50°C
• Protection Rating: IP65
• Cable Length: 1.4 m
• Dimensions: 235 x 88 x 52 mm
• Weight: Approximately 0.68 kg
• Warranty: 5 Years

What’s Included

• 1 × CTEK CS ONE Gen 2 12V Smart Battery Charger and Maintainer
• 1 × Polarity-Free Clamp Cable
• 1 × User Manual