Hello my name is Mónica, I'm from Portugal.
I play fire emblem, mario games, pokemon, sometimes animal crossing and bravely default. I'm probably going to get the new version of pokemon sapphire.
If you want to exchange FC please PM me ;3
I think it's a glitch see the "Battery glitch" topic on tama-zone. https://tama-zone.com/index.php?showtopic=25950&st=540&&do=findComment&comment=22088833
I hope it helps ^_^