12S Battery Monitoring Board


This product is still in validation and not yet for sale. If you are interested in evaluating a beta version in your application, please reach out at support@four-forty.com

The 12S battery monitoring board acts as an smart interface between you and your rechargeable battery pack. Compatible with all Li-ion based chemistries and cell types, it allows you to measure voltages, sample temperatures, and perform bleed-balancing on cells – all over an isolated digital connection.


  • Fully open-source design and firmware, with pre-loaded Arduino-compatible bootloader
  • UART and I2C communication busses, capable of streaming data and on-the-fly parameter programming
  • Two integrated 100k thermistor inputs per board for pack temperature monitoring
  • Built-in 60mA cell bleed balancing capability, with programmable modes
  • Built-in chip temperature monitoring, to prevent overheat during balancing
  • Isolated operation up to 200V and expandable s-count up to 96S, permitting connection to low voltage systems*
  • Watchdog timers to ensure reliable operation and balance shutdown during communication failure
  • Detailed documentation and user guide

For more information, check out the documentation below:

*Isolation ratings represent the rated values of onboard isolation components. This product is not independently tested to meet isolation specifications, and may exceed the ratings of isolated components at higher s-counts.

SKU: 007 Category: Tags: , , , ,

Additional information

Weight N/A
Dimensions N/A
Connector Options

Connectors not included, Loose connectors, Soldered connectors


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