Team, We have a customer that is VERY security consious as part of their mobility policy. They are running MC75's with WWAN only. As part of thier security solution their internal IT stafff have mandated a Private APN with SSL VPN as well. They are using SSL from http://www.f5.com/ As it turns out they are getting poor battery life. Initial tests show 55% battery drain with SSL enabled and 30% drain without it.  Questions: 1. Does anyone know of clients running SSL VPN over a Private APN? Not necessarity F5 - Any SSL? 2. If so, how is the battery life? 3. Are there any apps or programs we can run in the background to prove that the processor...etc is being used with SSL and hence causing this battery drain.  4. Any reg or other settings to help optimise this battery drain? If you have any clues/answers to the above - please let me know Cheers Harry