Alternator and Battery replaced, won't hold a charge
Alternator fuse. Look in owners manual for location of fuse. If no manual Google year,make and model of vehicle.
Check the fuse as stated above or you could have a bad connection from the wires to the battery. A loose connection will cause the battery to die.
Had the same problem, Turned out it was my back wiper trying to run as if it was left turned on. Because the wiper was constantly trying to run, it drained the battery.
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