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[Createdtoburn]

Looks like your alternator is going to shit if it only read 11.6 while running. I would deff clean your battery terminals first, as in take them off and clean them with a wire brush, as well as the battery posts. Then fully charge your battery, or at least jump it to get the car running. Then check what it reads once the car is on, it should be at least 14 volts if your alternator is good. Mine reads 14.4.

But I would start there before you rule out a bad battery.