AUTDER AD-808
AUTDER Car Battery Tester and Alternator Tester User Manual
Brand: AUTDER | Model: AD-808
Uvod
The AUTDER AD-808 is a versatile automotive battery voltage meter designed for comprehensive testing of both 12V and 24V batteries, as well as alternator charging systems. This device provides reliable and accurate readings, ensuring you can monitor the health of your vehicle's power system with ease. Its intuitive design and robust protection features make it an essential tool for car, truck, motorcycle, RV, ATV, SUV, boat, yacht, and mower owners.
Kaj je v škatli
- AUTDER AD-808 Battery Tester
- Aligator Clamps Kabel
- Cigarette Lighter Plug Adapter Cable
- Uporabniški priročnik

Image: The complete package contents of the AUTDER AD-808, showing the main unit, alligator clamps, cigarette lighter adapter, and the user manual.
Nastavitev
The AD-808 offers two convenient methods for connection: directly to the battery terminals using alligator clamps or via the vehicle's cigarette lighter socket.
Connecting via Alligator Clamps:
- Ensure the vehicle engine is off.
- Povežite aligator clamps cable to the AD-808 tester.
- Priložite rdeča pozitivno (+) clamp na pozitivni pol akumulatorja.
- Priložite črna negativni (-) clamp na negativni pol akumulatorja.
- The tester will power on automatically.

Image: Connecting the AD-808 battery tester directly to a car battery using the provided alligator clamps. The red clamp priključi se na pozitivni pol in črni clamp priključi se na negativni pol.
Connecting via Cigarette Lighter Socket:
- Connect the cigarette lighter plug adapter cable to the AD-808 tester.
- Insert the cigarette lighter plug into your vehicle's 12V or 24V power socket.
- The tester will power on automatically. Note that voltage readings from the cigarette lighter may be slightly lower than direct battery readings due to vehicle circuitry.

Image: The AD-808 connected via its cigarette lighter plug adapter, inserted into a car's interior power socket for convenient testing.
Navodila za uporabo
The AD-808 features a simple toggle switch to select between 12V, 24V, and Alternator test modes. The LCD screen displays real-time voltage, while LED indicators provide a quick status overview.
Battery Testing (12V or 24V):
- Ensure the vehicle engine is off.
- Connect the AD-808 using either alligator clamps or the cigarette lighter adapter.
- Use the toggle switch to select the appropriate voltage (12V or 24V) for your battery.
- The LCD screen will display the real-time battery voltage.
- Observe the LED indicators on the left side of the tester (FULL, MEDIUM, LOW, EMPTY) to determine the battery's charge status.

Image: The AD-808 in use, showing the LCD display indicating voltage and the LED lights illuminating to show the battery's charge level.
Alternator Charging System Analysis:
- Connect the AD-808 to your vehicle's battery.
- Start the vehicle engine and let it run.
- Set the toggle switch to the middle position (Alternator).
- The LCD screen will display the real-time voltage being supplied by the alternator.
- Observe the LED indicators on the right side of the tester (HIGH, GOOD, DEAD, REVERSE) to assess the alternator's status.

Image: The AD-808 testing the alternator, showing the device connected to the battery while the engine is running, and the display indicating alternator output.
Uradni videoposnetki izdelkov:
Video: An official demonstration of the AUTDER Car Battery Tester and Alternator Tester in action, showcasing its features and ease of use for both battery and alternator checks.
Video: Jedrnat pregledview of the AUTDER Car Battery Tester, highlighting its key functionalities and compact design for quick and reliable battery assessments.
Features Display
The AD-808 is equipped with a clear LCD display and multiple LED indicators for easy interpretation of test results.
- LCD zaslon: Prikazuje glasnost v realnem časutage with high accuracy (close to 0.01V).
- LED Indication (Battery Status):
- POLNO: Battery in normal condition (12.6-13.5V on a 12V battery).
- SREDNJE: Baterija voltage je nekoliko nižji. Potrebno je polnjenje.
- NIZKA: Battery is low. Charge required, buzzer prompt.
- PRAZNO: Battery is completely run out of power.
- DEAD: Baterija voltage is too low. Battery problem, check by professional.
- Obrni: Connected in reverse to the battery post, buzzer prompts.
- LED Indication (Alternator Status):
- VISOKA: Izhodna volumna alternatorjatage is high (13.6-14.5V on a 12V battery).
- DOBRO: Izhodna volumna alternatorjatage je pravilen.
- DEAD: Alternator is not functioning correctly.
- Obrni: Connected in reverse to the battery post, buzzer prompts.

Slika: Podrobna view of the AD-808's interface, highlighting the digital LCD voltage display, the voltage selection switch, and the distinct LED indicators for both battery charge and alternator performance.
voltage Test Table
Refer to the following table for detailed voltage ranges corresponding to each indicator status.
| Ime indikatorja | POLNO | SREDNJE | NIZKA | PRAZNO | Opomba |
|---|---|---|---|---|---|
| 12V baterija Voltage Območje | 12.6V-14.5V | ≥ 11.9V, ≤ 12.6V | ≥ 9.9V, ≤ 11.9V | < 9.9 V | Baterija Voltage |
| 12V Alternator Voltage Območje | HIGH (≥ 14.5V) | GOOD (≥ 13.6V, ≤ 14.5V) | DEAD (< 13.6V) | REVERZ | Generated Voltage |
| 24V baterija Voltage Območje | 25.2V-29V | ≥ 23.8V, ≤ 25.2V | ≥ 19.8V, ≤ 23.8V | < 19.8 V | Baterija Voltage |
| 24V Alternator Voltage Območje | HIGH (≥ 29.2V) | GOOD (≥ 26V, ≤ 29.2V) | DEAD (< 26V) | REVERZ | Generated Voltage |
Zaščitne funkcije
The AD-808 is built with safety in mind to protect both the device and your vehicle.
- Reverse-Hookup Protection: Prevents damage to the device if the positive and negative clamps are connected incorrectly. The "REVERSE" LED will illuminate, and a buzzer will sound.
- voltage Testno območje: The device safely operates within a 4-30V DC range. If the voltage is outside this range, the screen will display 'LO' (for <4V) or 'HI' (for >30V), protecting against over-voltage.
Vzdrževanje
To ensure the longevity and accurate performance of your AUTDER AD-808, follow these simple maintenance guidelines:
- Čiščenje: Po vsaki uporabi napravo obrišite z mehko, suho krpo. Ne uporabljajte abrazivnih čistil ali topil.
- Shranjevanje: Tester shranjujte na hladnem in suhem mestu, stran od neposredne sončne svetlobe in ekstremnih temperatur. Hranite ga v originalni embalaži ali zaščitnem etuiju, da preprečite poškodbe.
- Skrb za kabel: Preverite kable in clamps regularly for any signs of wear, fraying, or damage. Replace if necessary.
- Izogibajte se vlagi: Do not expose the device to water or excessive moisture. It is not waterproof.
Odpravljanje težav
If you encounter issues with your AD-808, refer to the following common problems and solutions:
- Naprava se ne vklopi:
- Zagotovite klamps are securely connected to the correct battery terminals (positive to positive, negative to negative).
- If using the cigarette lighter adapter, ensure the vehicle's power socket is active.
- Check if the battery being tested has sufficient voltage (above 4V) to power the device.
- "REVERSE" LED is on:
- This indicates incorrect polarity connection. Disconnect immediately and re-attach the clamps to the correct terminals.
- Display shows "LO" or "HI":
- "LO" indicates the voltage is below 4V. The battery may be severely discharged or dead.
- "HI" indicates the voltage is above 30V. This is outside the device's safe operating range.
- Netočne meritve:
- Ensure connections are clean and free of corrosion.
- Preverite pravilno voltage mode (12V or 24V) is selected for your battery.
- If using the cigarette lighter, note that readings might be slightly lower than direct battery terminal readings.
Specifikacije
| Znamka | AUTDER |
| Številka modela | AD-808 |
| Dimenzije izdelka | 5.51 x 2.56 x 0.79 palcev |
| Teža predmeta | 5.64 unč (0.16 kilograma) |
| Vir napajanja | Battery Powered (draws power from test subject) |
| voltage Testno območje | 4-30V DC |
| barva | Črna |
| Jezik | angleščina |
| Država izvora | Kitajska |
| Prvič na voljo | 22. december 2020 |
Garancija in podpora
AUTDER provides a one-year warranty for the AD-808 battery tester. For any questions or assistance, please do not hesitate to contact our 24-hour online support team.
You can visit the official AUTDER store for more information and support: AUTDER Store on Amazon
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