High output alternator recommendations

One thing I did besides upgrading my alternator was definitely upgrading my battery. Even the high output alternators don't really put out high volts until you're at a little bit higher cruising RPM.. like on a hot day when I have the AC going and the electric fans on the motor going at a stop and the car is idling, there's no alternator that's going to keep all that stuff running at that low rpm. That's when you rely on a good battery until the RPMs come up and it can recharge...