PX4-Autopilot/docs/en/smart_batteries/index.md

Smart Batteries

Smart Batteries provide more accurate (and often more detailed) information about the state of a battery than an autopilot can estimate for "dumb" batteries. This allows for more more reliable flight planning notification of failure conditions. The information may include some of: remaining charge, time-to-empty (estimated), cell voltages (rated max/min, current voltage, etc.), temperature, currents, fault information, battery vendor, chemistry, etc.

PX4 supports (at least) following smart batteries:

• Rotoye Batmon

Further Information

• Mavlink Battery Protocol
• batt_smbus - PX4 SMBus Battery Driver docs
• Safety > Low Battery Failsafe.