I have a honeywell programmable thermostat RTH230B, and I'm using (2) new NiMH AA 2100mAh
Re-chargeable batteries and I'm swapping them every few days. What's up with that? It only has a little clock and starts the heater when it needs to.Is this normal?
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Does the t'stat show rechargeable batteries as acceptable? Some only want alkaline cells since NiMH do not produce 1.5 volts. My new CO detector says do not use NiMH.