VDIAGTOOL BT310 12V & 24V Battery Analyzer User Manual
This manual provides detailed instructions for operating the VDIAGTOOL BT310 Battery Tester.
1. Welcome
Thank you for purchasing the VDIAGTOOL BT310 Battery Tester. Please read and understand this user manual before operation.
2. About
The VDIAGTOOL BT310 Battery Tester utilizes advanced conductance testing technology and reverse polarity protection. It provides technicians, professionals, and DIYers with critical information on the health status of 12V and 24V batteries, enabling quick, easy, and accurate identification of battery and charging system problems.
3. Packing List
- VDIAGTOOL BT310 Battery Tester
- User Manual
4. Compatibility
Refer to the battery label for battery type and CCA (Cold Cranking Amp) values. Supported battery types include:
- VRLA (Valve-regulated lead-acid battery)
- GEL (Gelled Electrolyte Lead Acid Battery)
- AGM (Absorbent Glass Mat)
- SLA (Sealed Lead Acid Battery)
- STANDARD LSI (Starting, Lighting, and Ignition)
Note: If your vehicle battery type is not listed or you are unsure, please contact customer support with battery pictures or consult your retailer.
5. Cautions
- Use this tester in accordance with instructions, considering working conditions. Incorrect usage may lead to hazardous results.
- Operate with 12V/24V batteries, with a working voltage range of DC 9V to 36V.
- Ensure battery terminals are clean. Grease and dust can lead to inaccurate test results.
- Check the insulating layer of the clamps for damage or exposed wires to prevent electric shock.
- Wear eye protection when working around batteries.
- Test in a well-ventilated area, as vehicle exhaust contains toxic carbon monoxide.
- Keep hair, hands, clothing, and tester leads/cords away from moving blades and belts.
- Keep the tester out of the reach of children.
Note for safe use: Connect the black (negative pole) clip first, then the red (positive pole) clip. Do not shake the clips while connecting.
6. Features
The VDIAGTOOL BT310 features a clear display and intuitive controls for various battery testing functions.
7. Operation Instructions
7.1 Main Menu and Connections
The tester is powered by the vehicle battery. Connect the Red (+) positive battery clamp to the positive battery terminal and the Black (-) negative battery clamp to the negative battery terminal. Ensure secure attachment.
If connections are correct, the display will show Page 1 (Battery Volts). If incorrect, Page 2 will display error messages like "Black clamp(NEG.) contact is bad, please check!" or "Red clamp(POSI.) contact is bad, please check!". Double-check connections if errors occur.
After successful connection, select the battery voltage (12V or 24V) and press ENTER to access the MAIN MENU.
Button Operations
| Button | Operation |
|---|---|
| [Up Arrow] | Increase value / Page up |
| [Down Arrow] | Decrease value / Page down |
| Back | Cancel / Return |
| ENTER | Confirm / Enter / Proceed |
| [Restart Symbol] | Restart unit / Return under any status |
| [Checkmark Symbol] | Battery good condition light |
| [Warning Symbol] | Battery warning condition light |
| [Exclamation Symbol] | Battery bad condition light |
| Red Clamp | Positive connection |
| Black Clamp | Negative connection |
7.2 Battery Capacity Test (Example for 12V Battery)
This test determines battery condition based on the labeled rated value.
7.2.1 Before Test
Ensure the engine and all accessory loads are OFF. For a fully charged battery, turn on the vehicle headlights for 2-3 minutes until the battery voltage returns to normal values.
7.2.2 Steps
- From the MAIN MENU, select "BATTERY CAPACITY" using the navigation buttons and press "ENTER".
- Select the preferable "BATTERY TYPE" (e.g., VRLA, GEL, AGM, SLA, STANDARD LSI) and press "ENTER".
- Select the "CCA TYPE" (e.g., CCA, IEC, EN, DIN, JIS, GB) according to your battery's rating label and press "ENTER".
- Select the "CCA RATED" value displayed on the battery rating label and press "ENTER". The tester recommends entering a number near or equal to the battery's rated CCA.
- Press "ENTER" to start the Battery Test. The test result will be displayed.
Test Result Display Example:
BATTERY CAPACITY
- Voltage: 11.89V
- SOC: 37%
- Battery Ω: 4.14m Ω
- RATED: 800 CCA
- SOH: 64%
- 780 CCA
A "CHARGE & RETEST" option may be available.
Battery State of Health (SOH) and Test Result Reference Table (for 12V Battery)
| LIFE | RESULT | NOTE | LED Indicator |
|---|---|---|---|
| >80% | GREAT | Good to Use | GREEN |
| >60% | NORMAL | Not Bad | GREEN |
| >45% | CAUTION | Keep Caution | YELLOW |
| <45% | SUGGESTREPLACE | Replace Needed | RED |
Note: Replace the battery if the LED indicator is Red.
7.3 Cranking Test
This test evaluates the battery's cranking state by measuring cranking voltage and time.
7.3.1 Before Test
Ensure the engine and all accessory loads are OFF for accurate results.
7.3.2 Steps
- Connect the Red (+) positive battery clamp to the positive battery terminal and the Black (-) negative battery clamp to the negative battery terminal. Ensure secure attachment.
- Ensure the tester is in the MAIN MENU. Press the "BACK" key repeatedly or use the restart key [Restart Symbol] to return to the MAIN MENU if necessary.
- From the MAIN MENU, select "CRANKING TEST" using the navigation buttons and press "ENTER".
- Press "ENTER" to initiate the Cranking Test. Start the engine as instructed on the tester's screen. The test result will be displayed.
Test Result Display Example:
CRANKING TEST
- TIME: 836ms
- CRANKING V: 12.69 V
The result may indicate "CRANKING GOOD".
Cranking Test Result Reference Table (for 12V System)
| Cranking Voltage | Cranking Ability | Action to Battery |
|---|---|---|
| >10.7V | Good | No Action |
| 10.2V~10.7V | Normal | Keep Caution |
| 9.6V~10.2V | Bad | Replace It Soon |
| <9.6V | Very Bad | Replace It Immediately |
7.4 Charge System Test
This test assesses the charging system's condition under loaded and unloaded states.
7.4.1 Before Test
Ensure the engine and all accessory loads are OFF.
7.4.2 Steps
- Connect the Red (+) positive battery clamp to the positive battery terminal and the Black (-) negative battery clamp to the negative battery terminal. Ensure secure attachment.
- Ensure the tester is in the MAIN MENU. Press the "BACK" key repeatedly or use the restart key [Restart Symbol] to return to the MAIN MENU if necessary.
- From the MAIN MENU, select "CHARGE SYSTEM" using the navigation buttons and press "ENTER".
- Press "ENTER" to confirm and start the engine. Follow the tester's screen instructions (e.g., "Turn on all loads, speed up to 2000 to 2500 rpm, then press <Enter>"). The test result will be displayed.
Test Result Display Example:
CHARGE SYSTEM
- RIPPLE: 650mV
- LOADED: 13.01V
- UNLOADED: 14.60V
The result may indicate "CHARGING GOOD".
Charging Test Result Reference Table (for 12V System)
| Status | Battery Voltage | Engine Performance |
|---|---|---|
| All Electric System Off (Depress Accelerator) | >13.5 | Normal |
| 13.2~13.5 | General | |
| 13.0~13.2 | Keep Caution | |
| <13 | Inspection Immediately | |
| All Electric System On (Depress Accelerator) | 13.4~14.8 | Normal |
| 13.2~13.4 | Keep Caution | |
| <13.2 | Inspection Immediately |
Note: For reference only. Bad batteries may affect test results.
Note: The tool saves the result of the last test, not all testing data.
7.5 Language Set
7.5.1 Steps
- Ensure the tester is in the MAIN MENU. Press "BACK" or the restart key [Restart Symbol] to return to the MAIN MENU if necessary.
- From the MAIN MENU, select "LANGUAGE SET" using the navigation buttons and press "ENTER".
- Choose the preferable language and press "ENTER" to confirm. The tester supports multiple languages including English, Deutsch, Espanol, Français, Japanese, Portugues, Polski, Italiano, Magyar, Svenska, Slovak, Cesky, Neder Lands, and Russian (Pyccknn).
The selected language, e.g., "English", will be displayed on the LANGUAGE SETTING screen.
8. Technical Specification
| Display | 2.8" TFT colorful display |
|---|---|
| Working Temperature | -4°F - 140°F (-20°C - 60°C) |
| Dimension | 21.8cm × 14.4cm × 6.8cm |
| Weight | 0.45kg |
9. FAQ
- Q: Is BT310 able to test vehicle alternator? A: Yes, BT310 can perform alternator (charging) tests.
- Q: Will BT310 hold the last result in memory? A: Yes, it will keep the last result for data review.
- Q: Could it test 12-volt truck batteries? A: Yes, BT310 works on all 12-volt and 24-volt batteries, ranging from 100-2000CCA.
- Q: How to set the CCA RATED? A: You can set the data near the standard number of your battery.
- Q: Is the CCA value tested by this tester correct? A: CCA is considered an AC control standard for battery production. Based on accumulated records, the tested value of a new battery is typically 10-15% higher than the standard value. As the battery ages, this value tends to approach or fall below the standard.
- Q: Can this battery tester be used in or out of a vehicle? A: Yes, it can be used either in or out of a vehicle.
- Q: What do SOC, SOH, CCA mean? A: SOC = State of Charge, SOH = State of Health, CCA = Cold Cranking Ampere.
- Q: What do the abbreviations like CCA, IEC, EN, DIN, JIS, GB mean? A: These are industrial standards from different countries. CCA = Cold Cranking Ampere. IEC = International Electrotechnical Commission standard. JIS = Japanese Industrial Standard. Choose the standard relevant to your battery specification.
- Q: Is there any way to contact the seller if I have questions? A: Feel free to contact customer support via Amazon or email Vdiagtool2@outlook.com. Replies are typically provided within 24 hours.
10. Warranty & Support
10.1 VDIAGTOOL Two Year Limit Warranty
VDIAGTOOL warrants its products to the original purchaser against defects in material or workmanship for 24 months from the date of purchase. VDIAGTOOL will, based on technical support, analysis, and confirmation, repair or replace defective parts or products within the warranty period.
10.2 The Limit Warranty Void Under the Following Conditions
- Misuse, disassembly, alteration, or repair by non-VDIAGTOOL technical specialists.
- Careless handling and violation of operating instructions.
10.3 Support
- Email: support@vdiagtool.com
- Website: www.vdiagtool.com
For wholesale business or distributor inquiries:
- Email: sales@vdiagtool.com
Join the VDIAGTOOL community for tutorials, support, and more. Scan the QR code to subscribe to social media.
Social Media Links:
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- Reddit: reddit.com/r/vdiagtool/
To contribute to product development, test new products, and provide feedback, email: inventers@vdiagtool.com.
To create social media content and help the community, email: marketing@vdiagtool.com.
Manufacturer Information
SHENZHEN CHUANG XIN HONG TECHNOLOGY Co., Ltd.
Address: Room 801, Block A, Zaoan Business Building, Shiling Industrial Zone, Xinwei Village, Xinwei Community, Xili Street, Nanshan District, Shenzhen, Guangdong.
Phone: +86-0755-86266490
Email: Vdiagtool2@outlook.com
Website: www.vdiagtool.com
