How does ZOLEO battery management work?

The ZOLEO communicator has a sleep mode, designed to reduce unnecessary power consumption. By default, the ZOLEO device checks for messages every 12 minutes or when sending a message and then returns to sleep. This default can be changed in the device settings, an article about changing the message check interval is here.

The table below illustrates battery performance against the message check interval.

Option	Battery usage	Receive message performance	Description
Always on	Worst	Best	Messages are received as soon as they are sent
Periodic - 12 mins			Check for messages every 12 minutes
Periodic - 24 mins			Check for messages every 24 minutes
Periodic - 60 mins			Check for messages every 60 minutes
Manual	Best	Worst	Messages are only received when you:  • request a message check or  • send a message.

There are two types of battery warnings with ZOLEO,  a low battery warning, and a hot battery warning.

Low Battery Warning

When the charge remaining in the battery is less than 10%, a warning symbol appears on the status bar of a connected ZOLEO App and the power LED on the ZOLEO communicator will light up amber and a descending tone will be emitted at regular intervals. If you intend to use, or keep using, the ZOLEO communicator, you should recharge the battery as soon as possible. 

High Battery Warning

If the battery becomes too hot during charging, a warning symbol appears on the status bar of the ZOLEO App and the Power LED on the ZOLEO communicator double flashes red. Charging is automatically halted and will resume when the temperature of the battery is safe for charging to continue.