The Maxx-29's I have are made by Johnson Controls. Perhaps they use different vendors in different parts of the country or they just have a new vendor? I did notice a label change recently but did not look very closely at the battery. I would call Interstate and ask the specs. They probably have a 20 hour rate but sometimes it is just not published. Many of the DEKA re-branders don't publish the 20 hour rate but DEKA has it if you call & ask.