I’ve been using rechargeable batteries in my wireless thermostats for a while now, and I must say, it’s been a game-changer! 
After replacing the batteries in my Tado thermostats with 3x Amazon AAA 850mAh rechargeable batteries, I was initially concerned about the low battery indicator still showing up. However, after a few adjustments and charging cycles, everything worked out perfectly! 
The convenience of not having to constantly replace disposable batteries is unmatched, especially with 8 thermostats and 11 TRVs in my home. It’s not just about saving money; it’s also about reducing waste and being more environmentally friendly. 
I’d recommend using rechargeable batteries to anyone looking to streamline their smart home setup. The initial investment in a good quality charger is well worth it for the long-term benefits. Plus, the peace of mind knowing that my thermostats will always have power is invaluable. 
If anyone has tips or experiences to share about using rechargeable batteries in smart devices, I’d love to hear them! Let’s keep the conversation going and help each other optimize our smart homes! 