Batteries don’t last

leahlamont11
The batteries in the thermostat don’t last a few days. It’s pure crap. ?? And then can’t turn on the heating without them.. out a fortune on batteries
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Comments

13 comments

  • Comment author
    barat84

    The problem is, that Thermostat valve needs a strong "kick of power" to move the thermostat pin. Standard Alkaline batteries drop quickly bellow 1.4-1.3V. It's even worse with rechargeable ones (like Eneloop).

    I've solved the problem with mines by using Energizer Ultimate Lithium (but any Lithium batteries will do). Those are more expensive, but have a different characteristics which is ideal for motorized equipment or toys or anything that need a high "actuation force".

    There's also one more thing - observe how often a Valve needs to re-calibrate or how often it needs to regulate itself. Maybe temperature in the room drops to quickly, or the hysteresis is too tight or you need to fix the montage (take the valve off, press the thermostat tip couple time, put it on again)

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  • Comment author
    stef.scarpetta

    The batteries in my thermostat now only seem to be lasting around a week before they’re dead. Before the lasted for a year. Has something changed on the software of the thermostat? If so, any solution?

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  • Comment author
    brendanrooney69

    Ye in the last couple of months I have changed batteries every couple of weeks up to that they last a year at least I use good expensive batteries and still same outcome

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  • Comment author
    philsdomain

    Same issue here and in another forum post it appears. https://helpcenter.netatmo.com/hc/en-us/community/posts/18494328868626-Thermostat-battery-drainage

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  • Comment author
    rotagiuseppe1

    It's a very frequent problem... often (or always) associated with the defeat in the automatic rotation of display 
    The topic 'Smart Thermostat] Thermostat battery drainage'
    https://helpcenter.netatmo.com/hc/en-us/community/posts/18494328868626-Thermostat-battery-drainage
    with many useful comments seems has been recently deleated!!!!!

    Anyway the only solution seemed either to use an external 4,5 voltage power supply instead of batteries or to send it to repairing

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  • Comment author
    iliescubogdan

    can the firmware be updated to solve the problem?

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  • Comment author
    rotagiuseppe1

    No, it doesn't work... @iliescubogdan

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  • Comment author
    rotagiuseppe1

    This was a comment on a deleated topic, for the same problem

    'zuscom

    I changed the batteries in all 4 for identical new fully charged rechargeables ( 750mA ) a week ago. 3 are OK , one is using them every 2 days .. All the same firmware 78/249.'

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  • Comment author
    iliescubogdan

    Then how does the problem appear? HW failure?

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  • Comment author
    rotagiuseppe1

    @iliescubogdan

    I don't know...

    These are comments that were on a deleated topic, for the same problem

    'A soloution I have deployed is, opening up the battery compartment, get a typical USB cable and snip of the end and solder the +/- to the battery terminals. Most usb chargers are 5v which is fine for this, as 3x 1.5v AAA = 4.5v. Has been plugged in for months now and works as it did with batteries. Still crap there is no official fix but I wasnt bothered trying to send back and be messed about.  '

    'I have a  solution, I be using a battery eliminator like this one:
    https://www.amazon.co.uk/dp/B08Q8KR494?ref=ppx_yo2ov_dt_b_fed_asin_title
    I'll plug that to a phone charger'

    'I am trying the solution avoid to use accelerometer because my display stuck in horizontal position. Since 3 weeks I set my square thermostat in horizontal position with display face up. It seems to work well and the batteries are fully charged. I hope this test will be useful for someone...'
     --> Please note that this solution seamed to work only for one person…

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  • Comment author
    iliescubogdan

    thanks a lot! this helps.

    It looks like an issue related to accelerometer. Maybe another HW weakness (besides the display, which I already replaced). Still hope for a SW patch from supplier, but, until then, I'll try to use a power supply instead of batteries. 

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  • Comment author
    bbroad

    I also have this problem. Batteries lasted over a year. Recently I have had to change them every couple of weeks.

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  • Comment author
    jodgod3

    iliescubogdan where did you read it? I started to have battery drain problem when my accelerometer stop to work

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