Description
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.
Charging Test Parameters:
Overvoltage - Check Regulator
Max Voltage: >15.0V (24V system >30.0V)
Undervoltage - Check Battery & Alternator Wiring
Max Voltage: >13.3V (24V system >26.6V)
Normal - Alternator Excellent
Max Voltage: >13.9V (24V system >27.8V)
Normal - Alternator Good
Max Voltage: >13.7V (24V system >27.4V)
Normal - Alternator Normal
Max Voltage: >13.5V (24V system >27.0V)
Normal - Check Alternator Condition
Max Voltage: >13.3V (24V system >26.6V)
Displacement Vehicle Test Parameters:
Engine Displacement 1200~1600 CC
Reference CCA Value: 350
Engine Displacement 1600~2000 CC
Reference CCA Value: 500
Engine Displacement 2000~3000 CC
Reference CCA Value: 650
Engine Displacement 3000 CC Up
Reference CCA Value: 750
Package List:
% BTM-24 Host *1
% User Manual *1
% Data Cable *1
% Storage Bag *1
Highlights
% 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-i
More detail about MTM Precision Sdn Bhd
Malaysia
