The battery in Filo and Filo Tag is replaceable.
- Filo uses a CR2016 which can last up to 10 months, depending on how much it is used.The minimum guaranteed duration is 3-4 months.
- Filo Tag uses a CR2032 which has a guaranteed minimum duration of a year.
Filo is a device that once activated continuously seeks to remain connected to the smartphone that it is paired with. If Bluetooth isn't activated on the smartphone, Filo / Filo Tag will continue to search for it's paired device, thus draining battery.