Apparently AT&T's batteries are exploding, check this out from Engadget: "AT&T is looking to replace 17,000 backup batteries in U-verse equipment cabinets all over the country over concerns that they can explode. Those are confirmed concerns, too, as there have been four confirmed incidents since October 2006. Explosions have occurred in Houston, Cleveland and Wisconsin; the Wisconsin incident reportedly was strong enough to blow the 50-pound cabinet door off its bolts. The bad news for