What do you expect, after all it is more than just a battery pack.... this is a true UPS Features: 2600mAh LiPO battery Automatic battery charger LiPO Battery Protection Resettable Fuse on each powering input Embedded Real Time Clock controlled via RS232 interface and I2C. Time programmed ON/(file ...

Purchased one of these for my pi

https://www.modmypi.com/pi-modules-upis-advanced

Will shut the pi down when battery below a set point and reboot it when powers returned, Would be great to get Domoticz integration

Steve