this post was submitted on 16 Jul 2026
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I bought 2 MYGGSPRAY. I’ve been using them for about 3 months now. They show up as 100% on Home Assistant but is it showing the wrong numbers or is it just sipping the battery? How about your experience?

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[–] Cort@lemmy.world 5 points 21 hours ago (1 children)

If you used lithium rechargeable batteries it may stay at 100% until the batteries die, since the buck converter presents a constant 1.5v

[–] SkaveRat@discuss.tchncs.de 3 points 5 hours ago

On that note: do not use these type of batteries for smoke detectors. Most will not be able to detect that the battery is about to die, and just stop working one day