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Foxwell

Foxwell BT-780 Battery Tester | Best Professional 12V/24V Analyzer with Printer India

Name: Foxwell BT-780 Battery Tester | Best Professional 12V/24V Analyzer with Printer India
Brand: Foxwell
Price: 19400 INR
Availability: InStock

Professional Foxwell 12V/24V analyzer with built-in thermal printer. Lightweight at 0.8kg.

voltage

12V / 24V

test params

CCA, SOH%, SOC%, alternator, cranking, starting

battery types

WET, AGM, GEL, EFB, LiFePO4

printer

Built-in thermal

weight

0.8kg

display

Backlit LCD

warranty

1 year

₹19,400

+ 18% GST

Total incl. GST: ₹22,892

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 Foxwell

🛡️

Replacement Warranty

Defective unit replaced, not repaired

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Direct Support

+91 93112 11157

About This Product

Why the Foxwell BT-780 Battery Tester?

The Foxwell BT-780 is widely used by professional mechanics in India. At 0.8kg, it is one of the lightest professional testers with a printer — easy to carry to the vehicle rather than bringing the vehicle to the tester. It tests the complete starting system: battery health, alternator output, and cranking performance. The thermal printer produces a clear report that most customers accept as authoritative — Foxwell's reputation for accuracy in the professional segment is well established.

How It Works

The 4-step process explained

Battery Conductance Test

Measures battery conductance to calculate CCA and SOH — accurate across all temperature conditions.

Alternator Test

Tests charging voltage and detects AC ripple indicating diode failure.

Starting System Test

Records minimum cranking voltage and starter current draw — identifies weak starters as well as weak batteries.

Thermal Print

Instant report printed with all test data, vehicle details, and date.

How To Use

Step-by-step instructions

Connect red clamp to positive (+), black to negative (−).

Enter battery details: type (WET/AGM/GEL/EFB/Li) and rated CCA.

Run test — 10 seconds for battery, 30 seconds for full system.

Alternator test: start engine, select alternator test, run for 30 seconds.

Press PRINT — thermal report in 5 seconds.

Compatibility

Works with these vehicles

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

Workshop — all vehicles

12V and 24V with printed report

12V/24V

Fleet operators

Lightweight 0.8kg for mobile use

12V/24V

All battery types

WET, AGM, GEL, EFB, LiFePO4

All

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

Not suitable for: Home users — professional pricing for professional use.

How It Compares

vs other options

vs AUTOOL BT860: Both are professional printers at similar price points. Foxwell has a stronger brand reputation in the professional segment. BT860 includes SOC% reading. Choose based on brand preference — both are excellent. vs KW720: KW720 also covers 6V which the BT-780 does not — for workshops testing vintage cars, KW720 is more versatile.

FAQ

Common questions

How do I know if my battery is going to fail before it does?

Test the CCA (Cold Cranking Amps). A battery rated at 500 CCA that tests at 350 CCA (70%) is getting weak — replace it before it fails. Most professional testers show a health percentage and a clear GOOD/REPLACE result.

Can I test a battery without removing it from the car?

Yes. All testers here work in-vehicle — connect the clamps to the battery terminals without disconnecting the battery. Make sure the car is off and no large loads are running during the test.

What is the difference between CCA and Ah rating?

Ah (ampere-hours) measures storage capacity — how much energy the battery holds. CCA measures starting power — how much current it can deliver in a cold start. For testing battery health, CCA is the more important number.

Do I need a battery tester with a printer?

For home use, no. For a workshop, yes — a printed report given to the customer removes any argument about whether the battery is actually bad. It documents your diagnosis professionally.

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