01-26-2018, 11:21 AM
Ideally, well depeleted house batteries would be fed high amperage until 14.7ish volts is reached at the battery terminals.
Getting back to 80% charged in a 30 minute drive is much better than getting back to 65% from 50%. Sub 80% charged, battery charging is fairly efficient, the trick is the voltage regulation seeking mid to high 14's at the battery terminals.
Also driving, not just parked and idling. RPM is important, underhood airfow is important. Heat kills alternators and when maxed out, they get hot, fast. So underszed widiring and lesser electrical pressure can also be considered an alternator life prolonging measure, but likely at the expense of the house batteries, depending on the usage.
I can swap out my alternator in 15 minutes, and its cost is not a bank breaker, but this is certainly not the case of every vehicle and vehicle owner out there.
The stereo guys simply want to prevent discharge and maintain 12.8+v at the battery terminals while powering those huge amplifiers.. As far as I know.
I don't think the amplifiers work better at 14+ volts compared to 12.5v, but could certainly be wrong. My sony 104 watt stereo head is good enough for me. Most of the acceptable sound quality, is the kenwood 6x9's on the doors.
Getting back to 80% charged in a 30 minute drive is much better than getting back to 65% from 50%. Sub 80% charged, battery charging is fairly efficient, the trick is the voltage regulation seeking mid to high 14's at the battery terminals.
Also driving, not just parked and idling. RPM is important, underhood airfow is important. Heat kills alternators and when maxed out, they get hot, fast. So underszed widiring and lesser electrical pressure can also be considered an alternator life prolonging measure, but likely at the expense of the house batteries, depending on the usage.
I can swap out my alternator in 15 minutes, and its cost is not a bank breaker, but this is certainly not the case of every vehicle and vehicle owner out there.
The stereo guys simply want to prevent discharge and maintain 12.8+v at the battery terminals while powering those huge amplifiers.. As far as I know.
I don't think the amplifiers work better at 14+ volts compared to 12.5v, but could certainly be wrong. My sony 104 watt stereo head is good enough for me. Most of the acceptable sound quality, is the kenwood 6x9's on the doors.