When I do a lot of EOC (engine off coasting), the battery runs down a bit. All the time the engine is off, the alternator is not charging the battery, but the lights and ecu are still drawing power. I trickle charge to keep it topped off. A couple cents of electricity is cheaper than a couple dollars of gas to leave it idling for the coasting parts.
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11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles
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