Mastering Bluetooth: A Step-by-Step Guide

New Bluetooth Guide

WattCycle’s official new Bluetooth Battery App is now available for both iOS and Android. iOS users can download it from the App Store by searching “WATTCYCLE” and Android users can find it on Google Play. The original version will remain active, so feel free to choose the one that suits you best. The latest blue version offers enhanced features—including Fahrenheit conversion and parameter adjustments—to meet all your needs. Please update at your earliest convenience. For any inquiries, contact service@wattcycle.com.

APP Introduction

This application is independently developed and designed by Shenzhen Wattcycle Power Co., Ltd. lt specializes in monitoring lithium batteries, providing real-time status readings such as the voltage of each battery series charging and discharging current, alarm prompts, protection status, etc. This allows users to clearly understand the health status of lithium batteries and ensure their safe use.

APP Running Environment

This application can be installed on Android 4.3 or above, supports Bluetooth 4.0 devices, and requires GPS usage permissions for Bluetooth functionality.

APP Download and Install

Users can scan the code to download and install the APP in the following ways:

Users can download and install the APP in the following ways:

iOS: search "BMS Meta" on Apple appstore.

Android: search "BMS Meta' on Google play.

For Android Users：You can click this link to download the Previous version (Green version) Bluetooth APP.

Click Here

WattCycle is developing and updating a new version of the Bluetooth APP. Recently, many users have reported problems with the new version of the APP "BMS Meta”. Android users please click the link to download the Previous version (V1.1.5) of the APP. Thank you for your support!

APP Usage Examples

Android / iOS

Search for the download page and click the [Install] button to install, as shown in Figure 1.

1. After installation is completed, open the device name interface, select the name of the battery pack that needs to be connected, and click on it, as shown in Figure 2
2. When entering the app for the first time, a pop-up window will prompt you to obtain Bluetooth usage permission. Click on the settings and select agree to use, as shown in Figure
3. Note: When connecting Bluetooth, please confirm that the Bluetooth and GPS switches on your phone are turned on first, otherwise you will not be able to connect.

Following a successful Bluetooth connection, you can click the [Status Display] button at the bottom left of the main interface to switch between diverse display interfaces and learn about the detailed data of the battery pack. The following data can be viewed, as depicted in Figure 4.

1. Display the battery level and percentage, enabling users to better grasp the real-time battery level.
2. Present the charging and discharging switches.
3. Exhibit the total voltage of the battery.
4. Reveal the magnitude of the charging and discharging current.
5. Display the power size.
6. Present the number of battery pack cycles.
7. Display battery status, ambient temperature, MOS temperature, first group cell temperature, and second group cell temperature.
8. Display the voltage details in multiple series of battery cells, encompassing voltage difference, average voltage, minimum voltage, maximum voltage, and voltage difference for each series of battery cells.
9. Present alarm information and set parameters
10. Set parameters.

* Unauthorized alteration of the parameters of the BMS board may cause abnormal operation of the battery and affect the product warranty, lf necessary, please contact the customer service to obtain the password.

Following a successful Bluetooth connection, you can click the [Status Display] button at the bottom left of the main interface to switch between diverse display interfaces and learn about the detailed data of the battery pack.The following data can be viewed, as depicted in Figure 9.

1. Display the battery level and percentage, enabling users to better grasp the real-time battery level.
2. Present the charging and discharging switches.
3. Exhibit the total voltage of the battery.
4. Reveal the magnitude of the charging and discharging current.
5. Display the power size.
6. Present the number of battery pack cycles.
7. Display battery status, ambient temperature, MOS temperature, first group cell temperature, and second group cell temperature.
8. Display the voltage details in multiple series of battery cells, encompassing voltage difference, average voltage, minimum voltage, maximum voltage, and voltage difference for each series of battery cells.
9. Present alarm information and set parameters.
10. Set parameters.

* Unauthorized alteration of the parameters of the BMS board may cause abnormal operation of the battery and affect the product warranty. lf necessary, please contact the customer service to obtain the password.