AT&T 9520 Cordless phone battery for AT&T9520 HS8500 AT&T 3500 90817 Three 1/2 AA cells shrink-wrapped with two contacts on side. 0.19 3.6 .3 1.88 1.22 0.58 12 Months NiCad N/A Same Business Day Hi-Capacity No http://site.apexbattery.com/logos/hi-capacity.jpg 609525013177 New BB