Old units being shipped - replacement battery brand

I ordered an additional Simplisafe smoke detector a month ago. While we were traveling overseas, we got repeated message that the smoke detector was not working. Got back last night, turned off access to the 1 month old unit, then spent an hour with the Simplisafe AI chat bot. Got nowhere. I had pulled the unit and found that it was manufactured in 2022. Battery was dead. The bot was unable to help but could not get an actual person on the line. After an hour with the bot, I finally got a real person to respond. Another half an hour spent with her with more trips up and down the ladder and repeated error messages and automated phone calls

The net was that I was instructed to go out and buy a replacement battery and to overlook the instructions that came with the new unit that onlya Panasonic commercial 3 V #123 A should be used or else the unit would not work.

When protested and said I wanted a replacement unit, she offered to give me one month of monitoring for free. No defense offered for selling a 2022 component that failed. I ended up spending about 2 hours on the phone over this.