Zodiac eXO iQ LS clock loss after powercut

[hERCOfLEXCO]

I have a Zodiac eXO iQ LS connected to iAqualink,, no problems there.
The problem I am having is that we get the occasional power cut and every time this happens the unit's clock needs to be reset.
I manage the pool but travel a lot for work so this is a big issue as soon as the hour is lost the schedule looses relevance and can often mean to chlorination until I return.
Is anyone aware if the unit has an internal battery that may be dead? Does anyone have a wiring diagram for this unit.

First post here, let's see how it goes

 

[generessler]

Here appears to be the manual. Page 54: "Data loss (time, etc.) | Contact your retailer to replace the 3v CR 1220 battery."

If you're handy, I'm sure you can do it yourself. Google is your friend when you own a pool.