How good is the Boyalink 3 battery life for long recording sessions?

Boyalink 3 battery life is the most frequently mentioned topic in reviews of Boyalink 3. The battery life is increased thanks to the charging case of the device, making it possible to use it during long shooting and travels for creating videos. There are several reviews stating that it can be used during several shooting sessions without recharging; however, there are also tests showing that the battery life is not as high as claimed by the producer. Nevertheless, the battery life is regarded as sufficient for reliable use of the microphone.