Mastering Bluetooth: A Step-by-Step Guide

September 4, 2025
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
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Comments

  • Pedro Herranz 2026-04-06 01:04
    Buenas tardes,mi batería de 314A,me marca siempre 99%de carga, desde el principio que la cargue con el cargador de 220 V,aunque la descargue incluso con el AC.
    Que puedo hacer, gracias de antemano
    Saludos
  • Jones Craig 2026-03-21 01:26
    How about answering the questions being asked?
  • Pedro Herranz Yuste 2026-03-06 03:32
    Buenas noches, como podría vincular la batería,sin tener acceso al código de barras y ser muy costoso el desmontaje.
    La batería se compró el 11 /2/2026 a mi nombre.
    Ruego me den una alternativa, gracias
    Saludos
  • Joe Hamburger 2026-02-26 16:19
    Bms just quit working all together after a few months of it being not reliable in golf cart. Was making up errors about temp problems now app nor screen recognize it. Battery still charging and discharging which is kinda terrifying. Lits of money for problematic product. Please solve with adequate customer service.
  • Chana S 2026-02-19 06:25
    I just hope the battery is better than the poor documentation that it comes with… the app reports a difference of SOC of 6% expion360 reports 100% – the Wattcycle app reports 94%; Watts app loses BT constantly and does not report amps or watts ever…no documentation, a list of error codes on the website – but no explanation of what to do anout them. Really guys – this is not a good look…
  • Fryderyk 2026-01-30 23:37
    Do czego służą przyciski ładowanie i rozładowanie i jak ich używać
  • Martin Barker 2026-01-25 09:49
    Ι’ve already sent a few emails to the service department. It took me a few months to find someone who could install my batteries in my Victron system. Finally got it working. The batteries seem fine; however, I cannot get the BMS/bluetooth to work. I’m in a cold snap, so I can’t be sure of the battery temperatures or condition. The batteries are under load, and have been charged twice. Re-installed the App a few times and tried different devices. I am assuming there is a trick to get them going? I didn’t see any pin resets… I assume the BMS is working even though I can’t see it…
  • Jacek 2026-01-18 15:49
    Ataner88
  • Alfons Haas 2026-01-06 02:10
    Hi, in der App würde ich gerne die Lade und Entladen Funktion erklärt haben und welches Ladegerät geeignet ist .Reichen 20A .
  • Alfons Haas 2026-01-06 02:09
    Hi, in der App würde ich gerne die Lade und Entladen Funktion erklärt haben und welches Ladegerät geeignet ist .Reichen 20A .

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