dragonfly 5 series questions please

for use in salt water

- what is the power consumption for:(preferably in amps per hour)
- the 5 DVS
- the 5 PRO

- can or in the future will the WIFI feature on the 5 PRO be able to be turned off?

-Raymarine policy and repair turn around times on after warranty service in the dragonfly 5 series

- if I want to learn more in depth info than the manual gives me on how to get the MOST out of the dragonfly 5 fishfinding features and how to use / understand them where can I get this info