Do you think you might trade in your 3a for the 4a? Also, have you looked at the FDE.ai app to help optimize the battery life? I find my battery life to go 90

Do you think you might trade in your 3a for the 4a? Also, have you looked at the FDE.ai app to help optimize the battery life? I find my battery life to go 90 minutes to an hour longer now with FDE.