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

◉ 2000A CCA Precision Tester for 12V/24V batteries

◉ Tests All Major Battery Types: AGM, GEL, EFB, Flooded

◉ One-Step Health Check: Instant SoH, CCA & internal resistance in seconds

◉ Real Cranking & Charging Analysis

◉ 6 Global Standards Supported: CCA/IEC/EN/DIN/JIS/GB

◉ In-Vehicle Testing: No need to disconnect the battery

◉ 2.4" Color Screen with Day/Night Mode

◉ Safe & Smart: Reverse polarity & overvoltage protection built-in

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 Range12V / 24VCCA Test Range0 – 2000 CCA (Selectable)Screen Material2.4-inch Color ScreenLanguageChinese, EnglishProduct Size80.52*155.76*28.15mmBare Weight≈479g

Battery Test Parameters:

Battery life is lowSOH: 0-60%

Status: ❌BadBattery life is averageSOH: 60-80%

Status: ⚠AttentionBattery life is goodSOH: 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 NeededCranking Voltage: ≥10.2V

Status: ✔GoodMonitor Battery HealthCranking Voltage: 9.6~10.2V

Status: ⚠WeakCheck Wiring / Charging SystemCranking 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 OKMin Voltage: >13.4V (24V system >25.6V)

Status: NormalCheck Alternator belt / Wiring for IssuesMin 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.

Charging Test Parameters:

Overvoltage - Check RegulatorMax Voltage: >15.0V (24V system >30.0V)Undervoltage - Check Battery & Alternator WiringMax Voltage: >13.3V (24V system >26.6V)Normal - Alternator ExcellentMax Voltage: >13.9V (24V system >27.8V)Normal - Alternator GoodMax Voltage: >13.7V (24V system >27.4V)Normal - Alternator NormalMax Voltage: >13.5V (24V system >27.0V)Normal - Check Alternator ConditionMax Voltage: >13.3V (24V system >26.6V)

Displacement Vehicle Test Parameters:

Engine Displacement 1200~1600 CCReference CCA Value: 350Engine Displacement 1600~2000 CCReference CCA Value: 500Engine Displacement 2000~3000 CCReference CCA Value: 650Engine Displacement 3000 CC UpReference CCA Value: 750