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This type of beeping sound appears due to low voltage of the rechargeable battery.
- Before you firstly use the solar powered EM8670 and pair it with the EM8610, please make sure to fully charge the lithium battery, since the battery has been self-discharged during transportation or not being used during a couple of days/weeks till the day of purchase.
- Please consider your installation location, to ensure the solar panel is getting enough sunlight/daylight and will be recharged every day. Don’t mount the EM8670 directly under a roof gutter or under an object that might block the solar panel from being charged.