Make it three, at first I thought it was not accurate until I realized it was reading opposite, I couldn't correct it but I got used to it. it's extremely accurate but istead of showing me I'm 90% full I'm 90% empty lol.
I haven't emptied it yet, so i'm not sure yet what it will read empty, but have a feeling it will be about what was said above - 0-70 with 70 being empty and 0-10 being full
