My '01 E320 4Matic is about to sit in the garage for 3 weeks. In past events a couple of years go, (sitting for 2 weeks), I returned to a dead battery. I do have a old Montgomery Ward 4amp trickle charger, but am not comfortable using it for that length of time. Is the corse of least resistance to disconnect the battery? TIA

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....just drive'em!
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