What’s a carbon pile tester?

A variable-load device that applies a real, sustained load to the battery for precise diagnostics.

Advanced workshops and technicians who need controlled high-load (e.g., ½ CCA for 15s) testing.

Carbon Pile Load Tester (500A) | Rs 14,500 + GST

A professional 500A carbon pile load tester for accurate, repeatable 12V car battery checks.

Follow BCI procedure: apply a load equal to ½ the rated CCA for 15 seconds on a fully charged battery (≈12.6V or higher at rest). Ideal for Indian garages, workshops, and service centers needing reliable battery, starter and alternator assessment.
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500A carbon pile battery load tester for 12V car batteries with dual gauges and heavy-duty clamps

Also called: 12V battery load tester, 500A battery tester, CCA tester, starter & alternator tester.

Overview

This carbon pile tester applies a smooth, variable load up to 500A to simulate cranking and quickly reveal weak or failing batteries. It’s a dependable choice for car battery testing and diagnostics in Indian workshops.

How to use (BCI-style)

Charge & rest: Confirm ≈12.6V+ at rest (100% SOC).
Connect: Firm clamp contact on clean terminals.
Set load: Dial to ½ the rated CCA.
Apply: Hold ~15 seconds; observe voltage & load.
Interpret: Minimal sag = good; large sag = weak/failing.
Cool-down: Allow the tester to cool between tests.

Key features

Variable load control up to 500 Amps
Dual gauges for voltage and load
Check starter draw and alternator output
Vented cooling for durability
Heavy-duty clamps with 48″ reach

Specifications

Type	Carbon Pile Battery Tester
Max Load	Variable up to 500A
System Voltage	12V lead-acid SLI (flooded, EFB, AGM)
Battery CCA Range	0–1000 CCA
Cables	48″ reach, heavy-duty clamps
Cooling	Vented housing
Warranty	6 months Limited Warranty
Category	Automotive Battery Testers

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Carbon pile vs electronic battery testers

Carbon pile load testers apply a real, adjustable load (e.g., 300–500A) to simulate engine cranking. This reveals voltage sag behavior and battery health under stress. Electronic conductance testers estimate CCA without high current but may miss issues that appear only under heavy load. Workshops often keep both.

Frequently Asked Questions

Do I need to fully charge the battery before load testing?

Yes. For accuracy, ensure the battery is at 100% state of charge (≈12.6V or higher at rest) before applying the load.

How much load should I apply with a carbon pile tester?

Per BCI guidance, apply a load equal to ½ the rated CCA for 15 seconds.

Can I check starter draw and alternator output?

Yes. Use the dual gauges and variable load to assess starter draw and alternator output along with battery capacity.