defiancecp
Well-known member
So I'm a huge fan of high-quality audio. I haven't had a car with less than 1kw of amps in nearly two decades (crap, I'm old...). And no, I'm not talking about the thump-crap, I'm talking about real high quality across the range (way back I competed in USAC and went to finals twice; the last time I beat the champion in sound quality [he tore me up in install with some really cool a/v combination stuff that was just starting to emerge back then]).
ANYWAY...
So now I'm moving to a leaf, and trying to figure out what to do with it. I know I can't approach the same way I always have (massive power with immense headroom on all channels), since power consumption is a huge impact on range - but there's one thing I really don't know that's somewhat critical for consideration. At a very high-level perspective, I'd like to shoot for around 5-8% of range reduction in worst case as an upper bound.
However, what I'm missing is this - I know there's a 12v system in the car driving the accessories, and I know it gets a charge from the other systems in the vehicle. But how robust is the supply from main to 12v?
As an example, let's say I don't consider that at all. The car has an averate 100mile range on 24kwh. If you average a little under 35mph, that's going to take 3 hours to drain (I'm using longer drive times as worst case in my application, since that will require the audio to function for the longest amount of time). So using that for a baseline, it's consuming around 8kw per hour. So to reduce by 8%, that restricts me to 640w average power consumption, or at 12v, just under 55 amps.
Everything from the battery I can handle, but I'm guessing the primary system doesn't recharge the 12v (secondary? acc? whatever you want to call it) nearly fast enough to charge 55 amps more than it normally would, so that system would be under continuous drain if it were run at that level.
So the big question I'm building up to is, does anyone know how much power the leaf primary system is capable of supplying to the leaf secondary (12v) system?
I'm just guessing, probably nobody knows. But hey, can't hurt to ask if anyone has any idea, right?
ANYWAY...
So now I'm moving to a leaf, and trying to figure out what to do with it. I know I can't approach the same way I always have (massive power with immense headroom on all channels), since power consumption is a huge impact on range - but there's one thing I really don't know that's somewhat critical for consideration. At a very high-level perspective, I'd like to shoot for around 5-8% of range reduction in worst case as an upper bound.
However, what I'm missing is this - I know there's a 12v system in the car driving the accessories, and I know it gets a charge from the other systems in the vehicle. But how robust is the supply from main to 12v?
As an example, let's say I don't consider that at all. The car has an averate 100mile range on 24kwh. If you average a little under 35mph, that's going to take 3 hours to drain (I'm using longer drive times as worst case in my application, since that will require the audio to function for the longest amount of time). So using that for a baseline, it's consuming around 8kw per hour. So to reduce by 8%, that restricts me to 640w average power consumption, or at 12v, just under 55 amps.
Everything from the battery I can handle, but I'm guessing the primary system doesn't recharge the 12v (secondary? acc? whatever you want to call it) nearly fast enough to charge 55 amps more than it normally would, so that system would be under continuous drain if it were run at that level.
So the big question I'm building up to is, does anyone know how much power the leaf primary system is capable of supplying to the leaf secondary (12v) system?
I'm just guessing, probably nobody knows. But hey, can't hurt to ask if anyone has any idea, right?