MAX17043: Battery Monitoring Done Right (Arduino & ESP32) | Savjee.be
Tiny, Accurate Battery Gas Gauges with Easy-to-Use I2C Interface and Optional Integrated Precision Sense Resistors | Analog Devices
2-6s Rc Lipo Battery Low Voltage Alarm Indicator 2-6 Cells Meter Checker Tester Test Led Display Board Module - Instrument Parts & Accessories - AliExpress
Overview | Adafruit LC709203F LiPoly / LiIon Fuel Gauge and Battery Monitor | Adafruit Learning System