Blind, can't hear when battery is low? I have a Macbook Pro. I'm legally blind and usually don't see the popup that says the battery is low. 

Is there a way to make it give me an audio alert? 

I've heard that you can do this with Voiceover, but I can't find any options for it. If there's a way to do it without voiceover, that would be even better.

Thank you!
this can be done using Apple Script after I did slight research.
Actually I cannot help you with it, because I am not experience in apple scripting, but if some would like to try, here is advisory:

Give your mac a more attention grabbing low battery warning