1. Introduction
The HABOTEST HT3500E is a versatile storage battery tester designed for 12V and 24V car, motorcycle, and truck batteries. It provides comprehensive analysis including battery internal resistance, cold start current (CCA), lifetime analysis (SOH), and voltage. This manual will guide you through the proper use and maintenance of your HT3500E battery tester.

2. Product Overview
The HT3500E battery tester features an intelligent anti-burn design, a high-definition digital LED display, and multiple testing modes. Its robust construction, made from ABS+TPE material, ensures it is shock-resistant and drop-proof. The device incorporates a smart chip for accurate detection and quick response, utilizing a Kelvin four-line detection principle for high precision.
2.1 Key Features
- Battery Test Functionality
- Intelligent Anti-Burn Protection
- High Definition Digital LED Display
- Multiple Testing Modes and Standards
- Shock-Resistant and Drop-Proof Design
- One-Piece Design with Professional Test Clips
- Soft Rubber Keypad and Anti-Slip Design

2.2 Function Summary
- Internal Resistance Detection: Measures the battery's internal resistance.
- Cold Start Current Detection (CCA): Evaluates the battery's ability to start an engine in cold conditions.
- Voltage Detection: Measures the current voltage of the battery.

2.3 Applicable Battery Types and Uses
The HT3500E is designed to test all types of starter lead-acid batteries, including:
- STD (Standard Lead-Acid Battery)
- EFB (Enhanced Flooded Battery)
- AGM (Absorbed Glass Mat Battery)
- GEL (Gel Battery)
It is suitable for various applications such as automotive repair and maintenance, electric vehicle battery evaluation and monitoring, backup power systems, energy storage systems, and battery research and development.

3. Specifications
Below are the detailed technical specifications for the HABOTEST HT3500E Battery Tester:

| Specification | Range/Description |
|---|---|
| Measuring Range | 8-30V |
| Electricity Range | 0%-100% |
| Measurement Accuracy (Voltage) | ±0.1V |
| Measurement Accuracy (Internal Resistance) | ±0.06mΩ |
| Working Temperature | -10°C ~ 50°C |
| Material | ABS+TPE |
| Display Mode | Digital LED Display |
| Test Standards | EN (European Standards), IEC (International Electrotechnical Commission), SAE (Society Of Automotive Engineers), DIN (German Industrial Standard) |
| Measurable Indicators/Units | CCA (Cold Cranking Amps), AH (Ampere-Hour) |
| Measurable Content | Voltage (VLOT), State of Charge (SOC), Internal Resistance (I.R), State of Health (SOH), Cold Start Current (CCA) |
| Detectable Battery Types | STD (Standard Lead-Acid), EFB (Enhanced Flooded), AGM (Absorbed Glass Mat), GEL (Gel Battery) |
| Test Methods | Four-line Kelvin Test |
| Overload Protection Voltage | 36V |
| Buzzer Alert | Yes |
| Overload Protection | Yes |
| Reverse Connection Protection | Yes |
| Poor Contact Indication | Yes |
| Body Size | 167 x 80 x 34 mm |
| Weight | 332g |

4. Safety Information
WARNING: Please read this manual carefully before using this instrument. Do not disassemble the electrical parts.
The HT3500E is equipped with several safety features to ensure safe operation:
- Reverse Polarity Protection: Prevents damage if the test clips are connected incorrectly to the battery terminals.
- Overvoltage Protection: Protects the device from excessive voltage input, with an overload protection voltage of 36V.
- Intelligent Anti-Burn: Enhanced internal input protection for safer use.

5. Package Contents
Upon opening your HT3500E Battery Tester package, you should find the following items:
- 1x HT3500E Battery Tester Unit
- 1x English User Manual
- 1x Packing Box

6. Setup
The HT3500E battery tester does not require internal batteries. It draws power directly from the battery being tested.
6.1 Connecting the Tester
- Ensure the battery terminals are clean and free from corrosion for optimal contact.
- Connect the red test clip to the positive (+) terminal of the battery.
- Connect the black test clip to the negative (-) terminal of the battery.
- Ensure the clips are firmly attached to the battery terminals to establish a good connection.

7. Operating Instructions
The HT3500E features a simple interface for easy operation, even for novice users.

7.1 Panel Functions
- Display Screen: Shows test results and menu options.
- TYPE Button: Used for selecting the battery type (STD, EFB, AGM, GEL).
- AH Button: Used for adjusting Ampere-Hour parameters.
- TEST Button: Initiates the battery test.
- D-STD Button: Selects the desired test standard (EN, IEC, SAE, CCA, DIN).
- ESC Button: Used to return to the previous menu or exit a function.
- Up/Down Arrows: Used for navigation and parameter adjustment.
7.2 Performing a Battery Test
- Connect the Tester: As described in Section 6.1. The device will power on automatically.
- Select Battery Type: Press the 'TYPE' button to cycle through the detectable battery types (STD, EFB, AGM, GEL) and select the one matching your battery.
- Select Test Standard: Press the 'D-STD' button to choose the appropriate measurement standard (EN, IEC, SAE, CCA, DIN, AH) for your test.
- Initiate Test: Press the 'TEST' button to begin the battery analysis.
- View Results: The results will be displayed on the high-definition screen, showing Voltage, SOC, I.R, SOH, and CCA values.


7.3 Battery Lifetime Analysis (SOH)
The tester provides a rapid assessment of battery lifetime based on its State of Health (SOH) percentage:
- ≥80%: Excellent Battery Condition
- ≥60%: Battery in Good Condition
- ≥45%: Battery Condition is Poor, Need to Pay Attention
- <45%: Recommended Replacement
If the current voltage of the measured battery is too low, the tester will automatically perform a charging detection to assess its ability to accept a charge.

7.4 Poor Contact Detection
If the connection between the test clips and the battery terminals is poor, the device will alert you. The clamp icons on the display will blink rapidly, and a buzzer will emit a 'beep~ beep~' sound. Ensure a firm and clean connection to proceed with accurate testing.

8. Maintenance
To ensure the longevity and accuracy of your HT3500E Battery Tester, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents.
- Storage: Store the tester in a dry environment, away from direct sunlight and extreme temperatures.
- Inspection: Periodically check the test clips and cables for any signs of wear or damage. Replace if necessary.
- Disassembly: Do not attempt to disassemble or repair the device yourself. This may void the warranty and could lead to injury or damage to the unit.
9. Troubleshooting
If you encounter issues with your HT3500E, refer to the following common troubleshooting steps:
- No Display/Power: Ensure the test clips are correctly and firmly connected to a battery with sufficient voltage (within the 8-30V operating range). The device draws power from the battery being tested.
- Inaccurate Readings: Verify that the correct battery type and test standard have been selected using the 'TYPE' and 'D-STD' buttons. Ensure good contact between the clips and battery terminals.
- Poor Contact Indication: If the 'Poor Contact Detected' alert appears (blinking clamp icons and beeping), re-attach the test clips firmly to the battery terminals, ensuring clean contact points.
- Device Not Responding: Disconnect the tester from the battery, wait a few seconds, and then reconnect it. If the issue persists, contact customer support.
10. Warranty and Support
The HABOTEST HT3500E Battery Tester is certified with CE, FCC, and RoHS standards, indicating compliance with health, safety, and environmental protection standards.
For warranty information, technical support, or service inquiries, please refer to the official HABOTEST website or contact your authorized dealer. Keep your purchase receipt as proof of purchase for warranty claims.





