Dexcom suddenly using up my phone's battery

The biggest battery drain on my phone is a game I play off and on throughout the day so I keep my phone plugged in when I’m sitting - a wall charger, portable battery or car charger all help keep my battery topped off and ready to take with me. Not to try to convince you to use apps you don’t want, but if battery is your only/main reason for not using certain ones, that could be a work-around.