Powerhouse 12V Bluetooth Battery Monitor

This product is used to monitor the status of automotive batteries, cranking and charging systems. Firstly, the user must install the monitor to the battery, then connect it to their smartphone using the BM2 app. The connection is made via Bluetooth. If problems occur with the battery, cranking, or charging systems, the app will send an automatic notification alert to the user. This can help quickly identify and diagnose problems with your vehicle's battery or monitor auxiliary battery usage. With the app, the user can also review/record trips and tests.

Please Note: This item is not suitable for lithium batteries.

1.0 Product Parameters

2.0 Product Safety Performance

• Product shell and wire are made by fireproof materials and are durable for high temperature.
• Built-in short circuit prevention safety switch will automatically cut off power when current is too large. Also, reverse connection protection is built-in, which will not damage the vehicle or product in case of reverse polarity.

3.0 How to Install the Product

Install battery monitor to the battery of the vehicle

1. Install the red connector to the positive pole and the black connector to the negative pole, then tighten/fix them.
2. Fix the product body with velcro. Try to find a position where the Bluetooth signal will not be blocked. Clean the surface before pasting.

4.0 App Installation

1. Scan the QR code of the product. [QR Code Image]

2. Search BM2 on the App Store or Google Play to download the app. [App Store and Google Play logos]

4.1 App Using Scene

The mobile can receive the signal within 10 meters between the mobile and the product if there is no obstruction. If the distance exceeds 10 meters or there is a block, it will affect the signal strength. [Diagram showing car, phone, and signal strength]

4.2 App Operation

4.2-1.

Click the app icon to run the app. It is necessary to turn on the Bluetooth of the mobile.

4.2-2.

Please allow the app to access location even when not using the app. If not, the product will not automatically notify the user when monitoring the problem. [Screenshot of location permission prompt]

4.2-3.

Please allow to receive notifications. Notifications include car battery, cranking system, and charging system problem alerts. If not allowed, you cannot receive relative notifications. If allowed, when the mobile phone enters the Bluetooth range, you will receive the information notification regardless of whether the app is running or not. [Screenshot of notification permission prompt]

4.2-4. App Interface Instruction—First Interface

1. Device Name: Shows the device name. By default, it will be the device ID No. The user can set the nickname in Device Management of System Setup.

2. Connecting Status: Shown in blue text. Disconnection status is shown in red text. When a default occurs, it will reconnect to the latest device automatically. It can also connect or disconnect manually.

3. System Setup Icon: Click to enter System Setup.

4. Battery State of Charge: Shows the battery state of charge.

5. Charging Status: At charging status, the battery ring will be dynamically rotating.

6. Battery Real-time Voltage: Shows battery real-time voltage and graphically displays the state of charge.

7. Battery Status: 1. Battery OK (Green), 2. Charging (Green), 3. Low Power (Red).

8. Battery Real Voltage Graph: Click the graph to review the voltage graph for each day.

9. Battery Voltage Test Icon: Defaulted as the first interface; selected status is blue, others are grey.

10. Cranking System Test Icon: When the engine starts, it will test the cranking system automatically; selected status is blue, others are grey.

11. Charging System Test Icon: Can test the charging system manually; selected status is blue, others are grey.

12. Trip Record Icon: Records each starting time, stopping time, and driving time of the vehicle; selected status is blue, others are grey.

4.2-5. App Interface Introduction—Voltage History Graph

1. Date Select: Click to bring up the calendar. An orange icon indicates that the voltage graph can be reviewed for the selected date. If there are red digits in the calendar, abnormal voltages may have occurred.

2. Voltage History Graph: Click the graph. A slider will appear at the top indicating the test time. The orange figure below the graph indicates the voltage value during this time period. [Diagram showing voltage history graph and calendar]

4.2-6. App Interface Introduction—System Setup

1. Daily Notification Alert Setup: Green is on, grey is off. System default is no more than one notification in 6 hours; the notification frequency can be set.

2. Abnormal Cranking Notification: Green is on, grey is off. System default is no more than one notification in 6 hours; the notification frequency can be set.

3. Power Alarm: Slide the bell icon. Two parameters can be set freely. When battery power falls to reach either value, the user will receive an app notification about the charge level.

4. Bluetooth Device Setup: Click to enter Bluetooth device system setup. User can search nearby devices and review the history of devices connected before. Bluetooth device name can be edited.

5. Hardware Installation: User can review the installation introduction.

6. Firmware Upgrade: User can review the hardware version and upgrade to new firmware once a new version is available.

7. Version: Displays the current app version number.

4.2-7. App Interface Introduction—Cranking Test

1. Engine Start Time.

2. Cranking Test: When the engine starts, the device will test the cranking system automatically and store the test result. Usually, if the cranking voltage is higher than 9.6V, it means normal. But if the cranking voltage is less than 9.6V, it means abnormal. If the cranking voltage is too low, it may be due to aging of the battery, low power, or starter fault.

3. Display Cranking Voltage Values: Green color means healthy, red color means unhealthy.

4. Cranking Voltage Graph: Displays the cranking voltage graph.

5. Recent Test Results: Displays the recent two test results; the orange dot means the selected page.

4.2-8. App Interface Introduction—Charging Test

Step 1: Idle Condition Test

1. Start engine.

2. Turn off any devices which consume power while in idle (e.g., radio, air conditioning, devices connected to cigarette lighter).

3. Turn on headlights only.

4. Click to start the test; it will automatically test idle condition voltage, then jump to the next step.

Second Step: High RPM Voltage Test

Increase RPM to 2500r/min and Hold for 5 seconds.

1. For high RPM voltage test, it is necessary to increase RPM as described below and hold for 3-5 seconds, then the test is finished.

• 4cyl – 2500/min
• 6cyl – 2000/min
• 8cyl – 1600/min

2. Description of charging voltage test:

• 3-1. Charging Voltage: normal: Charging system shows the alternator output is normal; no problem detected.
• 3-2. Charging Voltage: low: Charging voltage is low. Check if the engine transmission belt has slipped or is disconnected. Check whether the line connection between the alternator and battery is normal. If the transmission belt and line connection are good, please follow the car manufacturer's recommendations to exclude alternator failure.
• 3-3. Charging Voltage: high: The alternator output voltage is too high. Since most automotive engines use a built-in regulator, you may need to replace the alternator assembly (for old vehicles with external regulators, please replace the regulator directly). Common voltage limits for automotive regulators are 14.7±0.5V. High charging voltage will overcharge the battery and shorten its life, also causing it to malfunction.
• 3-4. No Voltage Output: no engine voltage output is detected: Check whether the alternator cable and the alternator belt are working properly.

3. Voltage under idle test: Green is OK, Red is abnormal.

4. High RPM voltage test: Green is OK, Red is abnormal.

5. Click button to re-test.

4.2-9. App Interface Introduction—Trip Record

1. Click search button to review driving records by selecting the date.

2. Date separator bar, specific to a certain day.

3. Starting time, running time, and misfire time of each drive.

5.0 Tips

• 1. Product should not be used beyond the specified voltage range (6-20V); excessive input voltage may damage the device.
• 2. App requires smartphones with: Android 4.3 or iOS 10.0 or later.
• 3. When the mobile enters Bluetooth range, users will receive a notification.
• 4. If you select "not allowed to access location" the first time, you will not receive notification alerts. If you want to use this function in the future, you can open the location in phone Settings by selecting "always allow location access".
• 5. If the daily test alert function is not open, when the mobile is close to the device, it also cannot get notification of the daily test result. You can set to allow notification both in the app and phone's Settings.
• 6. If the exception test alert function is not open, when the mobile is close to the device, it also cannot get notification of monitoring exceptions. You can set to allow notification both in the app and phone's Settings.
• 7. Firmware update will clear all data in the device; please open the app and wait for sync to finish before updating firmware.
• 8. All historical data will be stored on the phone side; app upgrades will not lose the data history. But if the app is uninstalled, the phone terminal data will be cleared.
• 9. The device will automatically monitor vehicle battery, cranking, and charging systems. The device can store data for up to 31 days. Please use the app or make the phone enter the device's Bluetooth range at least once within each 31-day period. Then, the device data history will be synchronized to the phone.
• 10. If the app cannot search for the Battery Monitor, please ensure the mobile's Bluetooth is on and close to the device without interference.