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  #1  
Old 02-21-2010, 11:24 AM
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Default 16V question

I was wondering if XS Power is considering developing larger 16volt batteries in the future?
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Old 02-21-2010, 11:56 AM
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Quote:
Originally Posted by Duaber View Post
I was wondering if XS Power is considering developing larger 16volt batteries in the future?
We are always considering new products for new applications. Since our 2009 model D1000, and new 2010 model D1600 are by far the most powerful 16V models available, why would we need an even more powerful 16V? If there is enough volume to justify the development of a new model, we would be happy to consider it.
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Last edited by [email protected]; 02-22-2010 at 07:32 AM.
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Old 02-23-2010, 09:13 PM
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Honestly, because the ones who want to run 18v for car audio competition are using lots of amps\power already and the 16v batts on the market now require a bank just to work with.

When people like me have several 3500w amps that are 18v capable... i look and go, well... that's gonna require a large bank to run these because the capacity isn't as large as oh say.... a D3100
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Old 02-23-2010, 09:17 PM
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running amps on 16v makes them draw less current, so you dont really need as much capacity as a 3100.
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Old 02-23-2010, 09:22 PM
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well, i've never ran 18v yet or 16v batts.. but tell me this-

if u are right...

are you saying that the input wattage an amp pulls in on a 14v system is the same as a 16 and 18v system? because that's what it sounds like you are implying...

If it is, then explain how an amp is rated to do more power at higher voltage levels with a decrease in current. It can't be relying on increased efficiency alone.

Also... again if you are right about the decrease in current... how much current are you talking about? What percentage from 12\14v to 16\18v?
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Old 02-23-2010, 09:36 PM
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Quote:
Originally Posted by shizzzon View Post
well, i've never ran 18v yet or 16v batts.. but tell me this-

if u are right...

are you saying that the input wattage an amp pulls in on a 14v system is the same as a 16 and 18v system? because that's what it sounds like you are implying...

If it is, then explain how an amp is rated to do more power at higher voltage levels with a decrease in current. It can't be relying on increased efficiency alone.

Also... again if you are right about the decrease in current... how much current are you talking about? What percentage from 12\14v to 16\18v?
Basic ohm's law.

Wattage = Current x Voltage.

SO to make the same power, and amp would draw less current with higher voltage.

But yes, we do end up turning our amps up to get more power out of them when more voltage is available.

But also, batteries supply a certain amount of wattage.

I will use simple numbers for example.
lets say a 12v battery can supply 2000w of power. So it can supply 166.66A of current at 12v.

Now if we make a similar battery into 16v, with the same power capacity, it can supply 125A of current at 16v.

So my thought here is that both batteries will supply the same amount of power with different current ratings.
And thats one reason why 16v batteries dont have the current capacity that 12v batts do.

But there is much more to it that I dont have insight into.
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Old 02-23-2010, 09:44 PM
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i do understand what you are saying.. but maybe we are on 2 different pages...

I am referring to what the amp does when pulling power as you stated an amp will pull less current when supplied with higher voltage.

Take the AQ3500d, the original one.

It's rated to do -
3500w @14.4v
4000w @16v
5000w @18v (all rated at same THD level as i remember)

Now, let's throw efficiency away and say it's 100%
14.4v @3500w = 243A
16v @4000w= 250A
18v @5000w= 278A

It appears that the higher the voltage.. the more current it would pull BUT let's trun that around-

With the slight increase in current with a bump up in voltage, it appears that it "looks" like it pulls more current when in reality, it's just slightly more efficient...

Meaning... the amp should be pulling the same current regardless of voltage. It's just the higher the voltage, the higher the efficiency and the better output power it can produce.

The AQ3500d is also rated at 6500w @18v severe THD levels. You have to be pulling 300A or better to get that much power out of it so a decrease in current draw would be impossible.
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Old 02-23-2010, 09:54 PM
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Quote:
Originally Posted by shizzzon View Post
i do understand what you are saying.. but maybe we are on 2 different pages...

I am referring to what the amp does when pulling power as you stated an amp will pull less current when supplied with higher voltage.

Take the AQ3500d, the original one.

It's rated to do -
3500w @14.4v
4000w @16v
5000w @18v (all rated at same THD level as i remember)

Now, let's throw efficiency away and say it's 100%
14.4v @3500w = 243A
16v @4000w= 250A
18v @5000w= 278A

It appears that the higher the voltage.. the more current it would pull BUT let's trun that around-

With the slight increase in current with a bump up in voltage, it appears that it "looks" like it pulls more current when in reality, it's just slightly more efficient...

Meaning... the amp should be pulling the same current regardless of voltage. It's just the higher the voltage, the higher the efficiency and the better output power it can produce.

The AQ3500d is also rated at 6500w @18v severe THD levels. You have to be pulling 300A or better to get that much power out of it so a decrease in current draw would be impossible.
Yeah we are on 2 different pages. What I was referring to is that to make 5000w on a 12v setup, and amp would have to pull much more current than it would to make 5000w on a 16v setup.

I wasnt counting efficiency which is different for every amp.
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Old 02-24-2010, 12:22 PM
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Quote:
Originally Posted by shizzzon View Post
Honestly, because the ones who want to run 18v for car audio competition are using lots of amps\power already and the 16v batts on the market now require a bank just to work with.

When people like me have several 3500w amps that are 18v capable... i look and go, well... that's gonna require a large bank to run these because the capacity isn't as large as oh say.... a D3100
Of course we could build a 16V battery with the same capacity as the D3100, but that is not going to change the amount of money or space needed to power your huge systems.

For example, you could use:

4 - 50lb batts at $250ea or
2 - 100lb batts at $500ea.

Either way, you are paying for a certain "amount" of "battery power"... whether it comes in one single huge battery, or multiple smaller batteries, it's still going to cost the same and provide the same amount of performance.

There would be no reason we couldn't build a 500 pound 500Ah 16V battery, but maybe only two or three people in the whole world would have a use for it... by making our 16V compact and within a reasonable weight range (46lbs or 30lbs) depending on which model you choose, we are able to provide 16V batteries for a wide range of applications. Having it fit within the hugely popular group 34 space is a huge advantage for useability for other markets like racing.

If there is a proven demand for larger 16V batteries, we would be happy to introduce it into our lineup... we just need to see the demand
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Old 02-25-2010, 03:10 PM
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so say i was to swap to 16v. run my AB VFL400.1 at 16v. i could trade my 5 C&D 100ah batts for 4 16v batts and have more then enough to push them on a lower amperage draw?
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