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CTEK
CTEK CS One – 12V Charger for AGM, EFB, GEL & Lithium Batteries
SKU: SKU :40-330
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Description
Description
Product Description
The CTEK CS One is a premium automatic charger and automotive charger engineered in Sweden, supporting AGM, EFB, GEL, Wet Cell, and Lithium (LiFePO4) batteries. This intelligent 12V product is built for Indian car owners, workshops, and fleet managers running vehicles like Maruti, Tata, Mahindra, and Royal Enfield. Its universal 100–240V input handles India's voltage fluctuations with ease.
Features & Benefits
- Adaptive Chemistry Detection: Auto-identifies battery type — no manual switching needed.
- Universal 100–240V Input: Safely charges through India's erratic grid supply without battery damage.
- Bluetooth App Control: Monitor live charging via free CTEK app on iOS or Android.
- 8-Step Desulphation: Revives batteries deeply discharged during long monsoon storage.
- Spark-Proof Safety: Reverse polarity and short-circuit protection — safe in dimly lit garages.
- Start-Stop & Diesel Ready: Fully supports EFB-based start-stop systems and diesel engines.
- Genuine Swedish Origin: Authorised CTEK product — not a grey-market duplicate.
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
- Download the free CTEK app on your Android or iOS device.
- Connect red clamp to positive terminal, black to negative.
- Plug into any standard Indian 230V wall socket.
- 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 |
|---|---|---|
| Authenticity | Authorised, genuine product | Often unverified origin |
| Voltage Input | 100–240V, fluctuation-safe | Fixed input, damage risk |
| Battery Detection | Fully automatic | Manual selection only |
| Safety | Spark-proof, reverse polarity | Minimal protection |
| After-Sales | India warranty & support | No local service |
Understanding the Technology
The CTEK CS One uses adaptive multi-step charging algorithms — including desulphation, bulk charge, absorption, and maintenance phases — to maximise battery lifespan. Its LiFePO4 compatibility makes it future-ready as lithium-based automotive batteries gain popularity in India. Bluetooth-enabled smart charging via the CTEK app gives real-time state-of-charge visibility, a feature absent in conventional trickle chargers.
Warranty & Support in India
- Warranty: 1-year warranty against manufacturing defects
- Customer Support: Monday–Saturday, 9 AM–6 PM IST. WhatsApp / Phone: +91 93112 11157 · hello@naredi.in
- Returns: 14-day return and exchange policy, COD returns accepted
- Delivery: Free delivery across India, Cash on Delivery available
Frequently Asked Questions
Is this automotive charger compatible with Indian vehicles like Maruti and Tata?Yes — it supports all 12V lead-acid and lithium batteries found in Indian cars, SUVs, and motorcycles.
Will it work safely with India's unstable power supply?Absolutely — the 100–240V universal input is designed to handle voltage fluctuations common across Indian cities and towns.
How do I claim warranty in India?Contact us via WhatsApp / Phone: +91 93112 11157 or hello@naredi.in with your order details.
Is Cash on Delivery available?Yes — COD is available with free delivery to all pin codes across India.
Complete Your Kit
Everything you need for complete vehicle care
- Test before you charge: Battery Testers →
- Diagnose the root cause: OBD Diagnostic Tools →
- Emergency backup: Jump Starters →
- Keep fluids healthy: Performance Additives →
Further Reading
Our guides will help you get the most out of this product.
- CTEK CS One: Why India's Harshest Roads and Hottest Summers Demand a Smarter Battery Charger
- Your Car Battery Can Silently Drain Your Home Inverter Too — Here Is the One Tool Every Indian Car Owner Needs
- The Only Car Jump Starter That Never Dies on You: OzCharge RescueMate 750 Reviewed for Indian Conditions
