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CTEK

CTEK SmartPass 120 | Advanced Dual Battery Management System for India

Name: CTEK SmartPass 120 | Advanced Dual Battery Management System for India
Brand: CTEK
Price: 64900 INR
Availability: InStock

Dual battery management system for vehicles with two batteries. Manages priority charging between main and auxiliary.

voltage

12V

current

120A pass-through

function

Dual battery management

battery types

WET, AGM, GEL

input

Alternator or charger

warranty

5 years

₹64,900

+ 18% GST

Total incl. GST: ₹76,582

Free shipping across India 14-day returns

Buy on naredi.in → Ask on WhatsApp

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Authorized Distributor

Official dealer since 2014

✅

100% Genuine

Sourced directly from CTEK

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Replacement Warranty

Defective unit replaced, not repaired

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Direct Support

+91 93112 11157

About This Product

Why the CTEK SmartPass 120 |?

Many off-road 4x4 builds, motorhomes, and caravans run two batteries — a starter battery for the engine and an auxiliary battery for the winch, fridge, lighting, and camp equipment. The problem is ensuring the starter battery always has priority. The SmartPass 120 intelligently manages charging from the alternator between both batteries — the starter battery is always charged first, and only when it is full does the auxiliary battery receive charge. It handles up to 120A pass-through, sufficient for even high-drain winch setups.

How It Works

The 4-step process explained

Priority Detection

Monitors both batteries continuously and routes current to whichever needs it most.

Starter Battery Priority

Ensures the starter battery is always charged first — the engine will always start.

Auxiliary Charging

Once starter battery is full, routes remaining alternator current to auxiliary.

Isolation

Prevents auxiliary battery from draining the starter battery when parked.

How To Use

Step-by-step instructions

Install between the alternator output and both batteries — this is an installation job, not a plug-in charger.

For motorhomes: connect solar charge controller output to the SmartPass input alongside the alternator.

The unit operates automatically once installed — no switches or buttons needed.

Consult naredi.in or a 12V auto electrician for installation guidance.

Compatibility

Works with these vehicles

Compatible vehicles — common examples. If your vehicle is not listed, ask Arjun below — it almost certainly still works.

Dual battery 4x4 / off-road rigs

Manages main + auxiliary

Dual Battery

Caravans with solar + alternator

Priority charge management

Dual Battery

Motorhomes

Start battery + leisure battery

Dual Battery

Boats with dual battery setup

12V marine dual battery

Dual Battery

Don't see your vehicle? Ask Arjun — tell him your make, model and year for a direct answer.

Not suitable for: Single-battery vehicles — completely unnecessary. This is only for dual-battery setups.

How It Compares

vs other options

This is not a standard battery charger — it is a battery management system for dual-battery vehicle builds. If you have a single battery, you do not need this product. For 4x4 off-road builds, the SmartPass 120 is the most capable CTEK dual-battery solution available.

FAQ

Common questions

How is a CTEK charger different from a cheap charger?

A basic charger pushes current until you disconnect it, which can overcharge and damage the battery. CTEK chargers use a multi-step algorithm — they assess battery condition, desulfate if needed, charge at the optimal rate, and switch to maintenance mode automatically. Safe to leave connected indefinitely.

Can I charge an AGM battery with a standard charger?

No — AGM batteries require a specific voltage ceiling and charging profile. A standard charger will overcharge an AGM battery and destroy it. All CTEK chargers with an AGM mode are safe for AGM batteries.

How often should I charge my car battery?

If you drive daily, your alternator keeps the battery charged. But if the car sits unused for more than 2 weeks, connect a charger. In Indian summers, charge and test every 3 months — heat is the primary cause of early battery death.

Is it safe to leave a CTEK charger connected for months?

Yes. CTEK chargers automatically switch to pulse maintenance mode once charging is complete. They deliver tiny pulses to keep the battery at 100% without overcharging. Many customers leave them connected for the entire monsoon/winter storage period.

Is naredi.in an authorized dealer?

Yes. naredi.in is the authorized distributor in India for CTEK, Rislone, OzCharge, Autool and Foxwell. Products are sourced directly from the brands — not grey market imports. Warranty is handled by naredi.in directly in India.

What is the return policy?

14-day returns from the date of delivery, hassle-free. Contact naredi.in via WhatsApp at +91 93112 11157 to initiate a return.

How long does shipping take?

Free shipping across India. Metro cities typically 2-3 days, other cities 3-5 days. Tracking is provided once dispatched.

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Ask Arjun

Not sure if this is right for your vehicle?

Tell Arjun your vehicle and situation — he'll give you a straight answer, not generic advice.

Arjun — naredi.in Advisor