With constant usage, the batteries last for over 6 days.
The new firmware features some relevant new features.
standby mode has been re-enabled; this can give up to 1 month of battery life
new battery level indicator
new charging indicator
Instructions for updating firmware are found here. Also, please update the phone app to v.1.3.5 for full compatibility.
Standby mode requires both firmware 0.6.0 and phone app version 1.3.5 to work. Standby mode is off by default and must be enabled via app settings. The basics:
when standby mode is enabled, CORE will automatically enter a low power state after it has not been worn for 20 minutes.
during standby mode, all data communication is disabled.
standby mode can extend the time between recharges to up to 1 month.
You can wake your CORE from standby mode by shaking the CORE, connecting it to a charger, or resetting it.
The LED light now has six functions:
battery level indication
heart rate monitor detected
the device initially connects to CORE (4x rapid blink as previously)
data is downloaded from CORE (continual fast blinking, as previously)
on reset (short blink followed by battery level indication, as previously).
Shake to wake and battery level indication
When you shake your CORE to wake it from standby, the LED indicates how much battery is left.
Operating time left
Standby time left
3x short blink
Less than 12 hours
Less than 1 day
1x longer blink
> 12 hours
2x longer blink
> 36 hours
> 1 week
3x longer blink
> 72 hours
> 2 weeks
Heart rate connection
After the battery status is given, the heart rate monitor status is indicated for 2 minutes. In free-living mode (no heart rate monitor detected), CORE will give a single blink every 2 seconds. In sports mode (heart rate monitor detected), it will double blink every 2 seconds.
no heart rate monitor detected: single blink every 2 seconds (free-living mode)
heart rate monitor connected: double blink every 2 seconds (sports mode)
The LED will also now show charging status while connected to a USB:
charging: LED blinks 1s on/1s off
charge complete: LED off
connect USB: blink 5x
disconnect USB: no reaction
The device connects to CORE
Your CORE will blink 4x rapidly when it connects to a device.
Data downloaded from CORE
Your core will continuously blink rapidly while it is downloading data.
Short blink followed by battery level indication (see “Shake to wake”)
Android App v.1.3.5
This latest app version is needed to enable standby mode. You can find it in the Google Play store.
If the CORE is off (following a reset) and for future firmware updates when CORE is detected to be off-body for a sufficient time, it will automatically sleep.
In this case, under average use (just for sports training and competition only), the expected run-time is about 5-6 weeks on one charge.
Inside the CORE App, a battery level indicator shows the current charge
Once empty, a complete recharge takes about 2 hours.