Skip to product information
1 of 10

CTEK

CTEK CS One – 12V Charger for AGM, EFB, GEL & Lithium Batteries

✓ Authorized CTEK Dealer for India

SKU: SKU :40-330

Regular price Rs. 29,900.00
Regular price Sale price Rs. 29,900.00
Sold out
+ GST Extra
Shipping calculated at checkout.

Low stock

Authorised
Since 2014
Free Shipping
Pan-India
14-Day Returns
No questions
Genuine Product
100% authorised
Not sure if this is right for your vehicle?
Ask Arjun · AI advisor · answers in seconds · free
Ask Arjun

Description

Product Description

The CTEK CS One is a premium automatic charger and 12V battery charger engineered in Sweden for Indian car owners, workshops, and fleet managers. It safely charges AGM, EFB, GEL, and Lithium batteries across vehicles like Maruti, Tata, Mahindra, and Royal Enfield, built to handle India's voltage fluctuations and monsoon storage conditions reliably.

Features & Benefits

  • Adaptive Detection: Auto-identifies all battery chemistries — no manual switching needed, ideal for mixed-fleet workshops.
  • Universal Input (100–240V): Handles Indian voltage fluctuations without a stabiliser, protecting your 12v battery and charger investment.
  • Bluetooth App Control: Monitor your automotive charger live via the CTEK app on iOS or Android.
  • 8-Step Desulphation: Revives batteries discharged during long monsoon storage or extended parking.
  • Spark-Proof Safety: Reverse polarity and short-circuit protection — safe in dimly lit Indian garages.
  • Start-Stop & Diesel Ready: Supports modern EFB start-stop systems and diesel engine vehicles.
  • Genuine Swedish Origin: Authorised CTEK product — not a grey-market duplicate common on unverified platforms.

Detailed Specifications

Specification Details
Input Voltage 100–240V AC, 50/60Hz
Output Voltage 12V DC
Battery Types AGM, EFB, GEL, Wet Cell, Lithium (LiFePO4)
Charging Programme 8-step automatic
Connectivity Bluetooth — CTEK App (iOS & Android)
Origin Sweden (CTEK)

How To Use

  1. Download the free CTEK app on your Android or iOS device.
  2. Connect red clamp to positive terminal, black to negative.
  3. Plug into any standard Indian 230V wall socket.
  4. Select battery type in the app — charging begins automatically.

What's Included in the Box

  • CTEK CS One Charger Unit
  • Clamp Cable Set
  • User Manual

Comparison: CTEK CS One – 12V Charger for AGM, EFB, GEL & Lithium Batteries vs Generic Alternatives

Feature CTEK CS One Generic Alternatives
Battery Detection Fully automatic Manual selection
Voltage Range 100–240V, fluctuation-safe Fixed input, risk of damage
Authenticity Authorised, genuine CTEK Grey-market or counterfeit risk
App Monitoring Bluetooth real-time control No connectivity
Safety Spark-proof, reverse polarity Minimal protection

Understanding the Technology

The CTEK CS One uses adaptive multi-step charging — a process where the charger continuously analyses battery voltage and internal resistance to deliver the precise current needed at each stage. This pulse conditioning technique breaks down lead sulphate crystals that form during deep discharge, a common issue in India after long parking periods or monsoon storage. Unlike basic car battery chargers that apply constant current, CTEK's algorithm prevents overcharging, extending overall battery life significantly across all supported chemistries.

Warranty & Support in India

  • Warranty: 2-year warranty against manufacturing defects
  • Customer Support: Monday–Saturday, 9 AM–6 PM IST. WhatsApp / Phone: +91 93112 11157 · hello@naredi.in (English & Hindi)
  • Returns: 14-day return and exchange policy, COD returns accepted
  • Delivery: Free delivery across India, Cash on Delivery available

Frequently Asked Questions

Is this compatible with Indian cars like Maruti and Tata?

Yes — the CTEK CS One charges all 12V batteries including those in Maruti, Tata, Mahindra, Honda, and Royal Enfield models supporting AGM, EFB, GEL, and Lithium types.

Will it work safely with India's fluctuating power supply?

Absolutely — its 100–240V universal input handles voltage fluctuations common across Indian pin codes without requiring a separate stabiliser.

How do I raise a warranty claim?

Contact Naredi support via WhatsApp / Phone: +91 93112 11157 or hello@naredi.in, Monday–Saturday, 9 AM–6 PM IST.

Is Cash on Delivery available?

Yes — COD is available with free delivery to all Indian pin codes.

Complete Your Kit

Everything you need for complete vehicle care

View full details