ESP-12F connected to three AA nimh cells. The voltage is a bit high, but it doesn’t seem to be lethal to the little esp. Temperature has been around 0C the entire time, getting colder tonight.
![](https://sp-ao.shortpixel.ai/client/to_webp,q_lossless,ret_img,w_284,h_891/https://everythingesp.com/wp-content/uploads/2019/03/remote1_batlog-1.png)
ESP-12F connected to three AA nimh cells. The voltage is a bit high, but it doesn’t seem to be lethal to the little esp. Temperature has been around 0C the entire time, getting colder tonight.