Here's a piece of info about the batteries I never see mentioned on this forum. According to the Ford Manual the transmission draws power, even when the use/store switch is in store. The explanation given is that the transmission need a small amount of current to maintain the fuel trim, shift point, etc information gathered as a result of the unit being driven. The transmission adapts it characteristics to operate as efficiently as it can according to the way it is driven over time. When the battery has been disconnected or has been drained the transmission forgets all the data it has accumulated and has to relearn the drivers methods and mannerisms. There is even a short procedure in the manual on how to get the transmission started on its' relearning process. We used to put the switch in store when it was in storage and several times found the batteries dead when we went to use it. Now, as advised by knowledgeable members on this forum, we never put the unit in store. Of course we always have it plugged in when we have it stored. Just FYI.
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