Discussions

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  M18 Communication Board

  alexanderflores1351 started Feb 26, 2026 in Show and tell

  

  

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  Compatible (and incompatible) devices

  Tool-Scientist started Sep 16, 2025 in General

  

  

  

  

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  ESP32 Standalone device

  robmiami started Feb 13, 2026 in Show and tell

  

  

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  No issue, just help

  jonobg started Sep 14, 2025 in General

  

  

  

  

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  Is it possible to unlock locked bms?

  ma00aem started Dec 23, 2025 in General

  

  

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  Can't get info from my batteries?

  KillaVolt asked Dec 12, 2025 in Q&A · Answered

  

  

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  FIXED read_id: Failed with error: module 'datetime' has no attribute 'UTC'

  Harry-ei6ku asked Dec 3, 2025 in Q&A · Answered

  

  

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  +Terminal voltage on J2, 3 volts on J1

  isibbotson asked Nov 22, 2025 in Q&A · Unanswered

  

  

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  Android App to Read M18 Cell Data

  NorthTown2022 started Oct 11, 2025 in Ideas

  

  

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  Merge with OpenBatteryInformation

  martin-badin started Nov 4, 2025 in Ideas

  

  

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  Interface PCB design.

  Spud2233 started Sep 19, 2025 in Ideas

  

  

  

  

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  Each readout increases "dumb" charge count

  lukaskuzmiak started Sep 13, 2025 in General

  

  

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  Ideas and suggestions for improving this software

  Zsolt2131 started Oct 10, 2025 in Ideas

  

  

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  Unknown histogram data at 176:183

  Tool-Scientist started Oct 13, 2025 in Ideas

  

  

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  Register ID #37: Charges started with cell < x.xx volts

  JustinMaxwell started Oct 6, 2025 in Show and tell

  

  

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  Battery Type 424, cell count, and Forge values.

  jessevallaro started Sep 26, 2025 in General

  

  

  

  

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  Unknow date [0x900C]: Date of first unbalanced occurrence?

  kenrevo started Sep 29, 2025 in General

  

  

  

  

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  Trying to talk to M18 with ESP32 UART

  nkskjames asked Sep 30, 2025 in Q&A · Unanswered

  

  

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  Another 3D-Printed Holder for M18 connector

  TheRepairforge started Sep 28, 2025 in General

  

  

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  3D model where all pins are exposed

  JSJFIN started Sep 26, 2025 in General

  

  

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  When did the M18 batteries first start supporting the serial diagnostics?

  dlkeng asked Sep 25, 2025 in Q&A · Answered

  

  

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  Feedback on M18 data dump solution.

  peterarandis started Sep 22, 2025 in General

  

  

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  Modbus-RTU?

  fencepost-error started Sep 20, 2025 in General

  

  

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  Firmware dump?

  uzlonewolf started Sep 14, 2025 in General

  

  

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  Discussion - Great Job & New Fields

  jamesshannon started Sep 13, 2025 in General

  

  

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