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Battery disconnected to Power FC for a long period - will it forget?

I'm going to be putting my car into long term storage (1-2 years) and am considering disconnecting the battery during this period as I may not have access to a power point for a trickle charger or solar maintenance charger.  I know a couple of months is fine, but have never heard of anyone disconnecting it from a PowerFC for extended periods of time.

Does anyone know if my PowerFC will "forget" its settings?  I don't really want to have to get it completely retuned when I reconnect the battery after a long period.

I have Power FC's in three of my Skylines and they often sit for six months or more at a time with the battery disconnected.

To date I have had now problems with them when they are are connected to power and they fire up first time every time.

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