I know that a lot of water has passed under the bridge since the first post on this topic, however others may be reading it now for the first time so I felt I could help a little. Europarts do now list a battery for this model (096) and with regard to procedure for changing the battery a simple trick is to use a piggy back battery to keep all settings whilst swapping out batteries. I used one of those jump start power packs, just remember to connect in parallel not series,(+to+, -to-). This is now near standard practice in service bays. Hope this helps someone.