One or two internal batteries may be fitted, and for logger models that include an expansion port an external power source may also be used. Where multiple power sources are available the logger automatically chooses the most appropriate source, prioritising the external power when available.
Only i2O-supplied battery power packs should be used; these are designed and manufactured specifically for use with the i2O Logger 14. Two types are available:
- AEBA0015 Dual Pack (standard supply in loggers from August 2016)
- AEBA0011 Quad Pack (for situations where additional capacity is required - e.g. hourly dial-ups).
The standard Dual Pack is designed to last more than five years with standard configuration of 15-minute logging and daily dial-ups (no alarms), with good GSM signal strength.
Battery Status LEDs
Two red battery status leds are located alongside the SIM slot, these are visible only when the top cap is removed. When a new battery is fitted the relevent LED iluminates briefly to indicate successful detection of the battery voltage. The LED extinguishes after 1 second.
A flashing red LED indicates that a previously-used battery is exhausted and should be changed. If there is no second battery or external power source, the logger will continue to log data but will not dial-up to upload data.
When a battery is fully depleted it is automatically disconnected from the logger circuitry and the indicator LED is turned off.