
A red battery symbol means your batteries need to be replaced with four new AA batteries.
To change your batteries:
NOTE: You should only replace batteries with brand new ones and not part-used. Rechargeable batteries shouldn’t be used as they do not provide the required voltage needed for your thermostat to work at its best.

A red battery symbol means your batteries need to be replaced with 4x AAA batteries. Follow the same steps as for the Hive Wireless Thermostat above.
To change your batteries:
NOTE: You should only replace batteries with brand new ones and not part-used. Rechargeable batteries shouldn’t be used as they do not provide the required voltage needed for your thermostat to work at its best.
A red battery symbol means your batteries need to be replaced with three new AA batteries.
To change your batteries:

“LOW BATTS” on the display means that your thermostat’s batteries are low and need changing for two new AA batteries. If the batteries go completely flat, your thermostat will stop working and the message “CHG BATTS” will appear.
To change the batteries:
If you have a Smart Linked Thermostat, you can find out how to change the batteries in the user guide available here.
NOTE: While “LOW BATTS” is shown, your heating and hot water will continue to work normally. If your thermostat displays “CHG BATTS,” your heating and hot water will switch off and can only be controlled using the button(s) on your Hive receiver.