1. Uvod
The JFIND V311B 12V Car Battery Tester is an advanced automotive diagnostic tool designed for quick and accurate analysis of 12V car batteries. Featuring a 2.8-inch color display, it provides essential data such as voltage, unutrašnji otpor, hladno pokretanje amp (CCA), and battery health. This device is user-friendly and supports multiple languages and battery standards, making it a versatile tool for both professionals and DIY enthusiasts.

2. Sigurnosne informacije
- Uvijek nosite zaštitu za oči i zaštitnu odjeću kada radite u blizini baterija.
- Uverite se da je vozilo u dobro provetrenom prostoru.
- Avoid sparks or open flames near the battery, as batteries can produce explosive gases.
- Do not touch the battery terminals with bare hands.
- Ensure the tester's clamps are connected correctly: red to positive (+), black to negative (-). Reverse polarity can damage the tester and the battery.
- Tester držite suhim i čistim. Ne izlažite ga vlazi ili ekstremnim temperaturama.
3. Proizvod je gotovview
The V311B Battery Tester is designed for ease of use and durability. It features a robust ABS shell, silicon physical buttons, and a clear color display.
3.1 Komponente i kontrole

- LCD ekran (1): 2.8-inch TFT color screen (240*320 resolution) for displaying test results and menu options.
- Back Button (ESC) (2): Used to return to the previous menu or exit a function.
- Dugme OK (3): Koristi se za potvrdu odabira ili ulazak u meni.
- Scroll Up/Down Buttons (4, 7): Koristi se za navigaciju kroz opcije menija.
- Scroll Left/Right Buttons (5, 6): Used for navigation or adjusting values.
- Battery Test Connector (8): Connects to the battery via alligator clips.
3.2 Fizičke karakteristike

- Removable Connector: For easy carrying and stable connection.
- Thick Wire: Durable, up to 150cm in length.
- Silicon Physical Buttons: High durability with sensitive touch.
- Intelligent Clamp: Red clip for positive electrode, black clip for negative electrode.
4. Specifikacije
| Feature | Opis |
|---|---|
| Naziv proizvoda | 12V tester baterija |
| Model proizvoda | V311B |
| Glavni kontrolni čip | APM32F103VCT6 |
| Boja izgleda | Plava |
| Interface Type | Reverse black and red alligator clips, 1 meter cable |
| Materijal školjke | ABS |
| Display | 2.8 inch TFT color screen, Resolution: 240*320 |
| Working Voltage | 9~18V |
| Standardi mjerenja | CCA, JIS, GB, SAE, MCA, CA, DIN, IEC, EN, BCI |
| Measurement Type | Ordinary battery, AGM flat plate, AGM winding, GEL, EFB |
| Veličina proizvoda | 156 mm (D) * 88 mm (Š) * 24 mm (V) |
| Certifikacija | CE |
| Višejezični | English, Russian, Chinese, Portuguese, Italian, French, German, Spanish, Polish |

4.1 Supported Battery Standards and Test Ranges

- CCA: 100-2000A
- BCI: 100-2000A
- CA: 100-2000A
- CAM: 100-2000A
- JIS: 26A17-24SH52
- DIN: 100-1400A
- IEC: 100-1400A
- EN: 100-2000A
- SAE: 100-2000A
- GB: 10-250Ah
5. Postavljanje i početna upotreba
5.1 Raspakivanje
Upon receiving your V311B Battery Tester, carefully open the package and ensure all components are present:
- 1 x V311B Car Battery Tester unit
- 1 x Uputstvo za upotrebu
- 1 x Safe packing box

5.2 Spajanje na bateriju
- Provjerite da li je kontakt vozila isključen i da li su svi pribori isključeni.
- Spojite crvenu krokodil štipaljku na pozitivni (+) pol 12V baterije.
- Spojite crnu krokodil štipaljku na negativni (-) pol 12V akumulatora.
- Tester će se automatski uključiti nakon povezivanja.
6. Uputstvo za upotrebu
The V311B offers various testing modes to assess your battery's performance.
6.1 Navigacija po glavnom meniju
Use the Scroll Up/Down/Left/Right buttons to navigate through the menu options on the 2.8-inch color display. Press the OK button to select an option and the ESC button to go back.

6.2 Test baterije
This function evaluates the overall health of the battery.
- U glavnom meniju odaberite 'Test baterije'.
- Choose the battery type (e.g., Regular battery, AGM Flat Plate, AGM Winding, GEL, EFB).
- Select the measurement standard (e.g., CCA, JIS, EN).
- Input the rated CCA value of your battery as prompted.
- Tester će prikazati rezultate, uključujući volumentage, rated value, measured value, internal resistance, state of health (SOH), and state of charge (SOC).
6.3 Cranking Test (Starting Status)
This test checks the battery's ability to crank the engine.
- From the main menu, select 'Start Test'.
- Slijedite upute na ekranu da biste pokrenuli motor.
- Tester će analizirati brzinu pokretanjatage and time, providing a result on the starting system's performance.
6.4 Test punjenja
This test evaluates the vehicle's charging system (alternator).
- From the main menu, select 'Charge Test'.
- Follow the on-screen prompts to run the engine at specified RPMs.
- Tester će izmjeriti jačinu punjenjatage i talasanje, što ukazuje na to da li alternator ispravno funkcioniše.
6.5 Analiza talasnog oblika
The V311B supports viewing battery waveform analysis for detailed diagnostics.
- Iz glavnog menija odaberite 'Wave'.
- Ekran će prikazati grafikon napunjenosti baterije u realnom vremenu.tage, allowing for visual inspection of voltage fluktuacije.
7. Data Printing Function
The V311B allows you to save and print test results for record-keeping or sharing.
- Perform the desired battery test.
- Connect the V311B tester to a computer using a USB cable (not always included, check package contents).
- Install any necessary drivers or software on your computer (refer to the manufacturer's website if not provided).
- From the V311B's menu, select 'Print'.
- Follow the on-screen instructions on both the tester and your computer to print the stored data to a connected printer.

8. Višejezična podrška
The V311B Battery Tester supports 9 different languages for user convenience.
- From the main menu, select 'Setting'.
- Navigate to 'Language' option.
- Select your preferred language from the list: English, Chinese, Portuguese, Italian, French, German, Spanish, Polish, Russian.

9. Supported Battery Types and Vehicles
The V311B is compatible with a wide range of 12V batteries and vehicles.
9.1 Battery Types
- Ordinary Lead-Acid Battery
- AGM baterija s ravnom pločom
- AGM Winding Battery
- GEL baterija
- EFB baterija
9.2 Vehicle Types
The tester supports 12V car startup lead-acid batteries and 12V system tests for various vehicles.

10. Otkrivanje problema
- Tester se ne uključuje: Ensure the alligator clips are securely connected to the battery terminals (red to positive, black to negative). The battery must have sufficient charge (above 9V) for the tester to power on.
- Netačna očitanja: Check for clean and tight connections between the clamps and battery terminals. Ensure the battery type and standard selected in the tester match your battery's specifications.
- Printing issues: Verify the USB connection to the computer and printer. Ensure the correct drivers are installed on your computer.
- Zamrznut ekran: Disconnect the tester from the battery, wait a few seconds, and reconnect. If the issue persists, contact support.
11. Održavanje
- Clean the tester's casing s mekim, damp tkanina. Nemojte koristiti abrazivna sredstva za čišćenje ili rastvarače.
- Keep the alligator clips clean and free of corrosion for optimal conductivity.
- Store the tester in a dry, cool place away from direct sunlight and extreme temperatures.
- Izbjegavajte ispuštanje uređaja ili izlaganje jakim udarcima.
12. Savjeti za korisnike
- For consistent results, always test the battery when it is fully charged or at a consistent state of charge.
- If testing a battery that has just been charged, allow it to rest for at least 30 minutes before testing to get more accurate readings.
- When performing a cranking test, ensure the engine starts successfully to get a complete analysis of the starting system.
- Regularly check your battery's health, especially before long trips or during seasonal changes, to prevent unexpected breakdowns.
14. Garancija i podrška
For warranty information, technical support, or service inquiries, please refer to the contact details provided in your product packaging or visit the official JFIND website. Ensure you have your product model and serial number ready when contacting support.








