My laptop battery icon is showing red cross


my laptop battery icon is showing a red cross even charging or not charging and also showing there that consider replacing your battery
my laptop is acer aspire model
i replaced my laptop battery with a new one before so should I really replace my laptop battery again
i replaced it 5 month ago
please help me with it, i'm totally blank right now and don't know what should i do
i hope you can solve this problem, thank you...