Mastering Bluetooth: A Step-by-Step Guide

WattCycle Bluetooth guide

WattCycle 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 version offers enhanced features—including New Parallel Mode, Fahrenheit conversion and parameter adjustments—to meet all your needs. Please update at your earliest convenience. For any inquiries, contact service@wattcycle.com.

For original version (BMS Meta) Password is 888888

New WattCycle Bluetooth APP (WattCycle®) no need Password

Note:Alternatively, you can leave a comment at the bottom with your email address. We will reply to you via email, as we are unable to respond to your comment directly.

Codes Meaning of Warning

This is the code meaning of the "Warnings page" in the Bluetooth APP.

Codes Name Codes Meanings
CHG OT Alarm Charging over-temperature alarm
DSG OT Alarm Discharging over-temperature alarm
CHG UT Alarm Charging under-temperature alarm
DSG UT Alarm Discharging under-temperature alarm
ENV OT Alarm Environmental over-temperature alarm
ENV UT Alarm Environmental under-temperature alarm
MOS OT Alarm Mos over-temperature alarm exists
Cell OVP(V) Single cell over-voltage protection
Cell UVP Alarm(V) Single cell under-voltage protection
Pack OVP(V) Pack over-voltage protection
Pack UVP(V) Pack under-voltage protection
CHG OCP(A) Over-current during charging
DSG OCP(A) Over-current during discharging
Hardware protect Hardware protection
High CHG volt High charging voltage
CHG OTP(°C) Charging over-temperature protection
DSG OTP(°C) Discharging over-temperature protection
CHG UTP(°C Charging under-temperature protection
DSG UTP(°C) Discharging under-temperature protection
MOS OTP(°C) Mos over-temperature protection
ENV OTP(°C) Environmental over-temperature protection during charging
ENV UTP(°C) Environmental under-temperature protection
CHG ON Charging
DSG ON Discharging
CHG MOS Fault Charging MOS failure
DSG MOS Fault Discharging MOS failure
Temp fault Temperature failure
Cells fault Battery cell failure
Cell OV Alarm Single cell over-voltage alarm
Cell UV Alarm Single cell under-voltage warning
Pack OV Alarm Pack over-voltage alarm
Pack UV Alarm Pack under-voltage warning
CHG OC Alarm Charging over-current alarm
DSG OC Alarm Discharging over-current alarm
Hardware protect Alarm Hardware protection warning

Comments

  • Mike 2025-06-05 15:37
    What does the charge and discharge button do on the app for the 314 amp hour smart 12 volt battery?
    When spending five or $600 on batteries it would be nice to have better documentation and explain what each of the buttons do and why doesn’t all of the data work on the app like amount of cycles.
  • Joe 2025-05-26 04:13
    Where can I find the error code explainations?
  • Steve Johnson 2025-04-29 02:14
    Like others, I bought a newer 100ah Smart Mini. Received it today, and finding out that these newer ones won’t work with the older Bluetooth BMS Meta app. Downloaded the newer version and it does work on my iPhone 5S, but unfortunately, the view of the monitoring information on the screen is all jumbled together. This was NOT the case with the older BMS Meta version. I was able to download the new app onto my iMac, and it works fine on that and the viewing is OK. But like others, I am not a fan of this newer version. I’ll just put this one into my 4-pack of parallel batteries (1 of which is a Smart version) for an emergency inverter and use one of my older ones for traveling in my car to plug my electric 12-volt cooler into it.
  • David 2025-04-16 10:02
    What is the password or where can I get the password
  • TomL 2025-04-07 09:17
    I like the feature of the older “BMS Meta” where it displays the voltage of each individual cell. Is there a way to get the new “Wattcycle” bluetooth app to display each individual cell’s voltage??? Right now, it can only display the total system voltage.
  • Lester Simonson 2025-04-06 12:32
    Bought 2 12 volt 100 amp batteries. Can’t connect with Bluetooth. Both apps not working. Please advise. Thanks.
  • Mitchell 2025-04-03 02:44
    Need password for my Mini 100 BT to access basic info in the BMS meta app that is missing from the Wattcycle app. The password “888888” from this article doesn’t work.
  • FRANCOIS-XAVIER VAN THUAN 2025-04-02 23:25
    Hello,
    I tried both “META” programs, the old one with the link (V1.1.5) and the one available on the Android Play Store. I had a password issue with both. The code “888888” didn’t work, making them unusable. So, I installed the Wattcycle V25.3.32 app instead.
    It’s true that it works without a password, but I find it a bit lacking. You can’t choose the temperature unit in the settings, as it’s forced to Fahrenheit, and on the main display, both (F and C) are always shown, making it less clear to read.
    More concerning is the lack of diagnostics for each cell (temperature and, most importantly, voltage), which is essential for checking the balancing. The battery cycle count is also missing, which is important for assessing wear. Yet, all these parameters are available in competitor apps.
    On the plus side, the settings do include useful options like warranty registration and the support URL.
    I really hope that Wattcycle will improve this app.
  • Susan Kyle 2025-03-31 07:12
    Just got 2 12v 100amh batteries. Where is proper documentation? Tried BMS meta, but there is no name on eithet battery. Wattcycle app has no documentation i can see, UI is minimal and its not connecting. Thanks
  • Charles C Emge 2025-03-29 22:51
    What does the “CHG Switch” and the DSG Switch" do? The Bluetooth App User manual simply states " (2) Display the charging and discharging switches" – What does that mean? What do the switches actually do ? – Thank You.

Leave a Comment

Recent Posts