1. Introduction
This manual provides detailed instructions for the proper use and maintenance of your MOTOPOWER MP0515A 12V Car Battery Tester. Please read this manual thoroughly before operating the device to ensure safe and effective use. Retain this manual for future reference.
2. Safety Information
Always observe the following safety precautions when working with automotive batteries and electrical systems:
- Wear appropriate eye protection and protective clothing.
- Ensure adequate ventilation to prevent accumulation of explosive gases.
- Avoid creating sparks or flames near the battery.
- Do not touch battery terminals or cables with bare hands while testing.
- Keep the device dry and clean. Do not operate in wet conditions.
- If battery acid comes into contact with skin or eyes, flush immediately with water and seek medical attention.
3. Product Overview
The MOTOPOWER MP0515A is a diagnostic tool designed to test 12V automotive batteries and analyze the cranking and charging systems. It features a color LCD screen and user-friendly interface.

Figure 3.1: MOTOPOWER MP0515A 12V Car Battery Tester with clamps and display.
Key Features:
- Tests 12V lead-acid batteries (Regular Flooded, AGM Tablet, AGM Winding, GEL, EFB).
- Supports 100-2000 CCA range.
- Performs Battery Health Test, Cranking Test, and Charging System Test.
- Real-time wave display for voltage output.
- Data printing capability.
- 3-inch color LCD screen (240 x 320 pixels).
- Multi-language support.

Figure 3.2: Overview of the MP0515A's multi-function diagnostic capabilities.
4. Setup
The MOTOPOWER MP0515A is self-powered by the vehicle's battery. No external power source is required for operation.
Connection Steps:
- Ensure the vehicle's ignition is off and all accessories are turned off.
- Connect the red positive (+) clamp of the tester to the positive (+) terminal of the 12V battery.
- Connect the black negative (-) clamp of the tester to the negative (-) terminal of the 12V battery.
- The tester will power on automatically once connected correctly.
5. Operating Instructions
Navigate through the menu using the directional buttons and confirm selections with the 'OK' button. Use 'ESC' to go back to the previous screen.
5.1 Battery Test
This function analyzes the battery's overall health, including its State of Health (SOH), State of Charge (SOC), internal resistance, and voltage.
- From the main menu, select 'Battery'.
- Select the battery type (e.g., Regular Flooded, AGM, GEL, EFB) that matches your vehicle's battery.
- Input the Cold Cranking Amps (CCA) rating of your battery. This value is typically found on the battery label.
- The tester will perform the analysis and display the results, including voltage, rated CCA, measured CCA, resistance, SOH, and SOC.

Figure 5.1: Battery type selection and example battery test results display.
5.2 Cranking Test
This test evaluates the vehicle's starting system by monitoring the cranking voltage during engine start-up.
- From the main menu, select 'Start'.
- Follow the on-screen prompts to start the engine.
- The tester will display the minimum and maximum cranking voltage, along with a graphical representation of the voltage change.
- A conclusion (e.g., 'Normal', 'Low') will be provided based on the measured voltage.

Figure 5.2: Cranking test results showing voltage fluctuations during engine start.
5.3 Charging Test
This test assesses the performance of the vehicle's charging system, including the alternator's output and ripple voltage.
- From the main menu, select 'Charge'.
- Follow the on-screen prompts, which may include revving the engine to a specific RPM.
- The tester will display the minimum and maximum charging voltage, ripple voltage, and a conclusion regarding the charging system's health.

Figure 5.3: Charging test results indicating minimum, maximum, and ripple voltage.
5.4 Real-Time Wave Display
This feature allows for real-time monitoring of voltage output, providing a graphical view of the battery or alternator performance.
- From the main menu, select 'Wave'.
- The screen will display a live graph of the voltage over time, showing any fluctuations or ripples.
- This can be useful for diagnosing intermittent issues or observing system stability.

Figure 5.4: Real-time wave display showing voltage output over time.
5.5 Data Printing
The MP0515A supports data printing, allowing you to record test results for analysis or record-keeping.
- Connect the tester to a computer using a USB cable (not included).
- From the main menu, select 'Print'.
- Follow the on-screen instructions and any software prompts on your computer to print the stored data.

Figure 5.5: The MP0515A connected to a computer for data printing.
6. Maintenance
Proper maintenance ensures the longevity and accuracy of your MOTOPOWER MP0515A.
- Cleaning: Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Storage: Store the tester in a cool, dry place away from direct sunlight and extreme temperatures. Keep the clamps clean and free of corrosion.
- Cable Care: Avoid bending or crimping the cables excessively. Inspect cables and clamps regularly for damage.
7. Troubleshooting
If you encounter issues with your MP0515A, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on | Incorrect connection; Battery voltage too low; Damaged cable/clamps | Ensure clamps are securely connected to correct terminals. Check battery voltage (must be above 8V). Inspect cables for damage. |
| Inaccurate readings | Loose connections; Incorrect battery type/CCA input; Corroded battery terminals | Verify secure connections. Double-check battery type and CCA settings. Clean battery terminals. |
| Screen frozen or unresponsive | Temporary software glitch | Disconnect the tester from the battery, wait a few seconds, then reconnect. |
8. Specifications
| Feature | Specification |
|---|---|
| Model | MP0515A |
| Voltage Range | 12V |
| CCA Range | 100-2000 CCA |
| Battery Types | Regular Flooded, AGM Tablet, AGM Winding, GEL, EFB |
| Display | 3-inch Color LCD (240x320 pixels) |
| Product Dimensions | 5.91 x 0.91 x 3.35 inches |
| Item Weight | 11.99 ounces (340 Grams) |
| Operating Language | English (9 languages supported) |
9. Warranty and Support
For warranty information, product support, or service inquiries, please contact MOTOPOWER directly.
- Website: www.motopowers.com
- Email Support: customerservice@motopowers.com
Please have your product model number (MP0515A) and purchase details ready when contacting support.





