MCP23017 I2C 16-bit Port Expander Breakout Board for LCDs — PMD Way
16-Channel General Purpose SPDT Relay Controller with I2C Interface - NCD Store
25A Battery Management System,Programmable BMS with SMBus 1.1, I2C, RS485, RS232 Communication protocol-BesTech Power Co., Ltd
RAA4892062GNP#AA5 - Renesas - Battery Supervisor & Monitor, I2C/SPI, 12 V to 55 V
BQ25730EVM | Buy TI Parts | TI.com
High-accuracy BMS controller for lithium batteries ...
BMS 16S 51.2V 40A 20A LiFePo4 Battery Manage System Board Passive Balanced Charging Short Circuit Protection For Electric Bike - AliExpress
Adafruit 16-Channel 12-bit PWM/Servo Shield - I2C interface : ID 1411 : $17.50 : Adafruit Industries, Unique & fun DIY electronics and kits
10S 12S 13S 14S 15S 16S 17S Li ion or Lifepo4 smart Bluetooth BMS with 40A 60A 80A constant current for 36v 48v 60v battery pack – LLT POWER ELECTRONIC
Amazon.com: 16 Channel I2C Interface Electromagnetic Relay Module for Arduino Raspberry 3.3V 5.0V Maximum Current per Relay – 10A Peak On Board LED Indicator with PCF8575 chip : Electronics
100A Battery Management System,Programmable BMS with SMBus 1.1, I2C, RS485, RS232 Communication protocol-BesTech Power Co., Ltd