Google Nest Community

I had the battery issue also and this appears to have fixed it..good luck.https://www.amazon.com/gp/product/B08TWDT4J2/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1

https://www.amazon.com/gp/product/B08TWDT4J2/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1. I had the battery issue and installed this and it appears to have fixed the issue..good luck..

5 yr old 3rd generation having same problem with low battery...