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I'm afraid I posted just a few months back how the SSR and many other recent hi-tech cars and trucks cannot be left unattended for more than maybe a week without battery drainage being a distinct possibility.
Apparently, some of the computerized systems we have grown to count on continue using power at low levels even when the vehicle is shut down and parked. This is why many airports now have "battery maintenance" services that keep the batteries alive during lengthy owner trips. No kidding.
In addition, the SSR has a few items, especially the electric retractable roof, that represent major power drains that can weaken the battery under some circumstances. For example, if you park the SSR, raise the roof just before parking it, and then leave it for a couple of weeks, I'd expect trouble.
Unfortunately, the only cure for this is overreaction like I have done: build a very simple truck (SLURP) with virtually no power equipment on it.
Jim G
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