Not sure about the battery, but I have no trim under my cabinets so I wanted a really discreet lighting solution, and I came up with one that works really well for me.

I used these: https://www.amazon.com/gp/product/B01MZZIGDM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

and hid the wire with this:

https://www.amazon.com/gp/product/B08CND7JNH/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

I removed the in-line remote dongle and plugged the whole thing into a smart plug, and everything works spectacularly on my schedules and scenes.