FNIRSI BTM-24 2000A CCA Multi-Function 12V/24V Car Battery Tester

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FNIRSI BTM-24 2000A CCA Multi-Function 12V/24V Car Battery Tester

Name: FNIRSI BTM-24 2000A CCA Multi-Function 12V/24V Car Battery Tester
Brand: FNIRSI
SKU: BTM-24

SKU: BTM-24

Manufacturer Warranty

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The FNIRSI BTM-24 Battery Tester is a compact, professional tool for fast and accurate battery health checks. It measures voltage, internal resistance, CCA, startup performance, load response, and charging system status—all in seconds. Supporting 12V/24V lead-acid, AGM, and lithium batteries with six international standards (CCA, IEC, EN, DIN, JIS, GB), it's perfect for automotive, industrial, and telecom use. The 2.4" color screen delivers clear, real-time results—no guesswork, just reliable diagnostics.

Features

Supports 12V & 24V Systems: Compatible with a wide range of vehicles and equipment.
Multi-Battery Type Compatibility: Works with AGM (flat plate & spiral), GEL, EFB, and standard flooded lead-acid batteries.
6 International Battery Standards: CCA, IEC, EN, DIN, JIS, and GB for global accuracy.
Comprehensive Diagnostics: Measures voltage, internal resistance, State of Charge (SoC), State of Health (SoH), CCA rating, and load performance.
Two Testing Modes: In-vehicle (on-car) or out-of-vehicle (bench) testing—no battery removal needed.
One-Tap Cranking Test: Captures real-time cranking voltage drop during engine start for instant starter system insight.
Real-Time Internal Resistance Testing: Non-destructive method to assess battery aging and health in seconds.
Dynamic Charging System Analysis: Monitors minimum, maximum, and fluctuating voltage under real-world alternator loads.
Waveform Display: Visualizes voltage trends and load changes for intuitive diagnostics.
2.4" Full-Color TFT Screen: With switchable Day/Night (black/white) modes for optimal visibility in any lighting.
Insulated Heavy-Duty Clamps: Ensure safe, secure, spark-free connections.
Built-in Safety Protections: Reverse polarity alert and overvoltage protection safeguard both user and battery.
All-in-One Design: Compact, portable, and ready for automotive, marine, industrial, and telecom applications.
Instant Health Report: After one test, get clear pass/warn/fail status, life estimate, and actionable recommendations.

Specifications

Basic Parameters:

Voltage Range

12V / 24V

CCA Test Range

0 – 2000 CCA (Selectable)

Screen Material

2.4-inch Color Screen

Language

Chinese, English

Product Size

80.52*155.76*28.15mm

Bare Weight

≈479g

Battery Test Parameters:

Battery life is low

SOH: 0-60%
Status: ❌Bad

Battery life is average

SOH: 60-80%
Status: ⚠Attention

Battery life is good

SOH: 80-100%
Status: ✔Good

※ Note: Before testing, turn off the engine and turn the key to the OFF position while the car is running.

Startup Test Parameters:

No Action Needed

Cranking Voltage: ≥10.2V
Status: ✔Good

Monitor Battery Health

Cranking Voltage: 9.6~10.2V
Status: ⚠Weak

Check Wiring / Charging System

Cranking Voltage: <9.6V
Status: ❌Low

※ Note: Before testing, turn off the engine and turn the key to the OFF position while the car is running.

Load Test Parameters:

Battery & Charging OK

Min Voltage: >13.4V (24V system >25.6V)
Status: Normal

Check Alternator belt / Wiring for Issues

Min Voltage: >12.8V (24V system >25.6V)
Status: Low Voltage

※Note: Before the test, start the car, select the load test mode, press the OK button, increase the speed to 2000~2500, and then press the OK button to obtain the measurement results.