By using our site, you agree to our. And it is also as breezy. Some Honeywell systems have a final warning feature if the batteries become too low on power. USA Bugo LLC, 2831 St. Rose Pkwy, Suite 244, Henderson, NV 89052 Philippines Honeywell Thermostat - Lyric Round (Model Tested RCH9310WF) An example of data being processed may be a unique identifier stored in a cookie. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Locating and replacing the batteries in a Honeywell thermostat system can be challenging, but it is an integral part of thermostat maintenance. 7 day programmable timers are the best way to secure your house and home by auto- lighting the outdoors and indoors. Then you would take out the old batteries and replace them with new ones. This image may not be used by other entities without the express written consent of wikiHow, Inc.