Gen 4 Battery issues

I’ve got a gen 4 prelude that has so far killed 2 batteries completely, battery voltage is fine but when put on a tester it will read very low amps. Alternator is putting out 14.6 volts so not a charging issue. Both times it has happened has been after driving, stopping for a short time and then not starting. Second battery lasted about a month. Have tried putting on a couple different chargers and still not enough to start. Any help is appreciated thanks