content: I know some things...and personal interest has me following this project. This article has some actual numbers and a couple linked sources. I think it's a great way to avoid brown-outs but the number not being released is the battery's amp-hr rating. Part of it, I assume, is that it would be used to point out how quick it would deplete if it were a full blackout.  But since that's not what it was designed for, they opted to not give critics any ammunition.