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CTEK CS One – 12V Charger for AGM, EFB, GEL & Lithium Batteries
CTEK CS One – 12V Charger for AGM, EFB, GEL & Lithium Batteries
SKU:40-330
Low stock: 5 left
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Description
Description
Product Description
The CTEK CS One is a premium automatic charger and 12V battery charger engineered in Sweden, designed for Indian car owners, workshops, and fleet managers. It safely charges AGM, EFB, GEL, and Lithium batteries across vehicles like Maruti, Tata, Mahindra, Honda, and Royal Enfield. Built to handle India's voltage fluctuations and monsoon storage conditions, it is a trusted automotive charger for every Indian garage.
Features & Benefits
- Adaptive Detection: Auto-identifies all battery chemistries — no manual switching needed, perfect for mixed-fleet workshops.
- Universal Input (100–240V): Handles Indian voltage fluctuations without damage to your 12v battery and charger.
- Bluetooth App Control: Monitor charging live via the CTEK app on iOS or Android — no guesswork.
- 8-Step Desulphation: Revives deeply discharged batteries after monsoon storage or long parking periods.
- Spark-Proof Safety: Reverse polarity and short-circuit protection — safe in dimly lit Indian garages.
- Start-Stop & Diesel Ready: Supports EFB start-stop systems and def in diesel engine vehicles.
- Genuine Swedish Origin: Authorised CTEK product — not a grey-market duplicate sold 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) |
| Safety | Spark-proof, reverse polarity, short-circuit protected |
| 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 starts 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 required |
| Voltage Range | 100–240V, India-safe | Fixed input, fluctuation risk |
| Authenticity | Authorised, genuine product | Grey-market duplicates common |
| App Monitoring | Live Bluetooth app control | No app support |
| Safety Features | Spark-proof, multi-protected | Minimal protection |
Understanding the Technology
The CTEK CS One uses adaptive multi-step charging algorithms to deliver the precise voltage and current each battery chemistry requires — a critical advantage over fixed-mode chargers. Its LiFePO4 compatibility makes it one of the few 12 volt battery and charger solutions in India supporting next-generation lithium packs. The desulphation stage breaks down lead-sulphate crystals that accumulate during India's long summer and monsoon storage periods, restoring lost capacity. This engineering-led approach is why CTEK is trusted globally by OEM automotive brands.
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
Will this charger work with Indian 230V power supply?Yes — its 100–240V universal input is fully compatible with standard Indian wall sockets and handles common voltage fluctuations safely.
Is the CTEK CS One compatible with my Maruti or Tata vehicle battery?Yes — it supports AGM, EFB, GEL, and Lithium batteries found across all major Indian car and two-wheeler brands.
How do I claim warranty or raise a return request?Contact our support team via WhatsApp / Phone: +91 93112 11157 or hello@naredi.in, Monday–Saturday, 9 AM–6 PM IST.
Is Cash on Delivery available for this product?Yes — COD is available at checkout 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
- Battery Jump Starter: Why the OzCharge RM 1000 Supercapacitor Unit Is the Smartest Buy for Indian Car Owners
- 12V Battery Charge Time Calculator: How Long to Fully Charge Your Car Battery in India (And Never Overcharge Again)
