🔋 ANENG BT-171 12V Digital Battery Tester – Automotive Battery & Charging System Voltage Tester with LED Display & Reverse Protection

The ANENG BT-171 12V Digital Battery Tester is a compact and reliable diagnostic tool designed to quickly test car battery voltage and charging system performance. Ideal for mechanics, electricians, and vehicle owners.

⚙️ Main Functions

✔ Designed for testing 12V battery voltage
✔ Tests vehicle charging system voltage
✔ Clear LED digital display for real-time readings
✔ LED battery status indicator
✔ Built-in reverse connection alarm
✔ Overvoltage protection for safety

📊 Easy-to-Read LED Display

• Shows real-time battery voltage

• LED indicators display battery condition

• Reverse display warning with alarm sound if clips are connected incorrectly

Simple and efficient diagnosis within seconds.

🔧 Durable & Practical Design

• Strong rubber protective body

• High-quality alligator clips for secure connection

• Compact and lightweight

• Easy to carry and store

Built for everyday automotive testing.

🛠 How to Use

🔌 Battery Voltage Testing

1. Connect red clip to positive (+) terminal

2. Connect black clip to negative (-) terminal

3. LED screen displays real-time battery voltage

4. Battery status indicator lights up

⚠ If connected incorrectly:

• Display will not show voltage

• Reverse indicator lights up

• Alarm prompt sounds

🚗 Charging System Testing

1. Keep tester connected correctly

2. Start the engine

3. Charging voltage appears on LED screen

4. LED indicator shows generator status

📦 Package Includes

• 1 × ANENG BT-171 12V Battery Tester

⚠️ Usage Precautions

• Do not touch metal probes directly during testing

• Check for damaged insulation before use

• Do not mix voltage and current ranges

• Remove internal batteries if not used for long periods

• If unsure about voltage range, start from the highest setting

🔎 Ideal For

• Car owners

• Auto repair technicians

• Electricians

• Garage workshops

• DIY vehicle maintenance