While I'm sat at work, just thought I'd ask what battery I need for my STI7 and roughly how much are they and do I need someone to fit it due to immobilisor etc? Turned over really slowly this morning so its on its way out me thinks.

 

Afraid "world is your oyster" on this one, it depends on how much you want to spend,plus length of warranty available.
You can get cheap and cheerful 12mth, or real heavy duty 3yr garantee jobby. Even gen scoob is a 3yr replacement, but costs around 70.00 notes