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CTEK

CTEK Pro 25S – 12V 25A Charger for Lead-Acid & LiFePO4 Batteries

✓ Authorized CTEK Dealer for India

SKU: SKU :40-194

Regular price Rs. 53,900.00
Regular price Rs. 59,290.00 Sale price Rs. 53,900.00
9% OFF Sold out
+ GST Extra
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Authorised
Since 2014
Free Shipping
Pan-India
14-Day Returns
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Genuine Product
100% authorised
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Description

Product Description

The CTEK Pro 25S is a professional-grade automatic charger and the most powerful 12V automotive charger in its class, delivering 25A for Lead-Acid and LiFePO4 batteries. Designed for Indian workshops, fleet operators, and serious enthusiasts, it handles India's voltage fluctuations and extreme heat up to 50°C with confidence.

Features & Benefits

  • 25A Fast Charging: Cuts turnaround time dramatically in high-volume Indian service centres.
  • Dual Chemistry Support: Charges AGM, GEL, WET, Ca/Ca, and LiFePO4 — one unit replaces several chargers.
  • RECOND Mode: Revives deeply discharged batteries after long monsoon-season storage.
  • Power Supply Mode: Stable 13.6V output protects ECU electronics during reprogramming on modern Indian vehicles.
  • Temperature Compensation: Accurate from -20°C to +50°C, covering every Indian climatic zone.
  • IP44 Weather Resistance: Dust and splash-proof — ideal for humid, monsoon-prone Indian garages.
  • Surge & Spark Protection: Reverse-polarity and short-circuit safe on India's unpredictable grid.

Detailed Specifications

Specification Details
Input Voltage 220–240V AC
Output 12V, 25A max
Lead-Acid Range 40–500Ah (WET, MF, AGM, GEL, Ca/Ca)
Lithium Range 30–450Ah (LiFePO4)
Temperature Range -20°C to +50°C
Protection Spark-proof, reverse polarity, short-circuit, IP44
Warranty 2 years manufacturer warranty

How To Use

  1. Connect red clamp to positive (+) and black to negative (–).
  2. Plug into a standard 220–240V Indian mains socket.
  3. Select battery type and programme on the unit.
  4. The automatic 8-step cycle completes fully unsupervised.

What's Included in the Box

  • CTEK Pro 25S 12V 25A Charger
  • Battery clamps with cables
  • User manual

Comparison: CTEK Pro 25S – 12V 25A Charger for Lead-Acid & LiFePO4 Batteries vs Generic Alternatives

Feature CTEK Pro 25S Generic Alternatives
Authenticity Genuine, original product High duplicate risk
Chemistry Support All types incl. LiFePO4 Usually lead-acid only
Voltage Safety Built for Indian grid fluctuations No surge protection
Warranty 2-year manufacturer warranty No reliable warranty
After-Sales Dedicated India support None available

Understanding the Technology

The CTEK Pro 25S uses an intelligent 8-step adaptive charging algorithm that analyses battery condition before applying the correct charge profile — preventing overcharge and sulphation, two of the most common causes of premature battery failure in India's high-temperature climate. The desulphation and conditioning stages restore lost battery capacity, extending service life significantly. Power Supply Mode maintains a steady 13.6V DC output, essential when technicians perform ECU flashing or ADAS calibration on modern vehicles without disconnecting the battery.

Warranty & Support in India

  • Warranty: 2-year manufacturer 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 automatic charger work with India's 220–240V mains supply?

Yes, the CTEK Pro 25S is designed for 220–240V AC — the standard Indian mains voltage — and includes built-in surge protection for India's variable grid.

Is this automotive charger compatible with both car and two-wheeler batteries?

It supports Lead-Acid batteries from 40Ah and LiFePO4 from 30Ah, covering most Indian cars, SUVs, and commercial vehicles.

How do I claim warranty in India?

Contact our team 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 pin codes across India.

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