# \#deep-sleep

**URL:** https://forums.losant.com/tag/deep-sleep/62.md

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## [ESP8266 Battery Monitor fails to connect to losant](https://forums.losant.com/t/esp8266-battery-monitor-fails-to-connect-to-losant/1548)

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**Author:** [@Johnson\_Ogbe](https://forums.losant.com/u/Johnson_Ogbe)\
**Replies:** 2\
**Last updated:** [February 21, 2019, 3:04pm UTC](https://forums.losant.com/t/esp8266-battery-monitor-fails-to-connect-to-losant/1548 "2019-02-21T15:04:32Z")

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Please I am having difficulty connecting my esp8266 battery monitor device to losant. I kept having this failure message: “esp8266 failed to authorize device to losant.validation error: the device id, access key, or acce…