Terrell from WhiteHouse, TennesseeEpisode 1437 (1:24:18)Terrell is blind and there's a cool 15,000 mAh that beeps to let you know how much charge is left. Very accessible. Leo says that's a great feature. It's available at harboltcompany.com. Topics: Hardware Tags: batteries, Mobile Phones, Accessibility, Harbolt batteries View the discussion thread.