Hi BJ, Good advice from Acorn, There is no such fault as 6F on a Scantronic 9800, You need a Yuasa 7amp hour sealed lead acid rechargeable battery. Dont go to Maplins, go to your nearest electrical whole-saler
The rr by the way means reset required, Change the battery and then reset the alarm by entering your code, and pressing clear or the tick key, depending on which keypad you have.
Regards
Nick 07842 480037
Nick
January 2010