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superlight weight battery 4.5lbs

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Old Jul 9, 2007 | 11:03 AM
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From: irvine
Default superlight weight battery 4.5lbs

Hey guys, I just saw these super lightweight 4 pound batteries from Voltphreaks,
has anyone tried one of these?

www.voltphreaks.com
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Old Jul 9, 2007 | 11:06 AM
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From: THE FUK U JUS CALL ME BISH?,NC
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Very Nice Ahow Much?
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Old Jul 9, 2007 | 11:10 AM
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umm i have heard of them but you have to be careful. the light weight batteries are only good for running the car. If you have any stereo equip or are listening to music the with car not running it wont be able to handle that.
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Old Jul 9, 2007 | 11:10 AM
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Bastards stole my name...
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Old Jul 9, 2007 | 11:17 AM
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3lbs = 300 amps 7Ah $225
4.5 lbs = 500+ amps 12Ah $330
8 lbs = 600+ amps 23Ah $405

That's amazing how light they are but that Amp/hour rating is what is telling. With that $405 8 pound battery you're going to be listening to your stereo for about a half an hour before needing a jump. If you've got an after market amplifier forget about it with that little 7Ah battery.

A group 34 Optima red top runs about $200, weighs about 37 lbs, and has 50 Ah. Ten times the weight, about the same cost, and 7 times the power of the little 3 pound battery.
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Old Jul 17, 2007 | 08:20 PM
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Originally Posted by Paul350Z
3lbs = 300 amps 7Ah $225
4.5 lbs = 500+ amps 12Ah $330
8 lbs = 600+ amps 23Ah $405

That's amazing how light they are but that Amp/hour rating is what is telling. With that $405 8 pound battery you're going to be listening to your stereo for about a half an hour before needing a jump. If you've got an after market amplifier forget about it with that little 7Ah battery.

A group 34 Optima red top runs about $200, weighs about 37 lbs, and has 50 Ah. Ten times the weight, about the same cost, and 7 times the power of the little 3 pound battery.
Tony from Voltphreaks here. Minor correction, the Optima group 34 has 7 times the Ah rating, which means how much ENERGY it carries. Power though, the Optima has 3 times the POWER rating. Energy is how long it can run the stereo with the car off for, power is how much instantaneous amps it can provide.

Yes that's the disadvantage, low Ah ratings compared to heavier batteries. But about the stereo, it only affects listening time when your engine is off. When your engine is on, the alternator is what's supplying the energy. As for an aftermarket amplifier, any of the Voltphreaks batteries would work, they are VERY powerful, and 300 amps is a LOT, it's equal to 3600 watts of amplifiers! Our smallest model (VPHR7) would work, but you wouldn't be listening for very long, due to the low Ah rating.

Anyways just wanted to comment that these batteries can handle any stereo just fine as long as listening with the engine off isn't a priority. And the Red Tops you mentioned are great batteries!

- Tony (Voltphreaks.com)

Last edited by thwang99; Jul 17, 2007 at 08:22 PM.
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Old Jul 18, 2007 | 08:56 PM
  #7  
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From: irvine
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thats great weight savings like 31lbs!!! that would take some weight off my fat 350z.
u can lose more weight than a cf hood. seems interesting

Last edited by sifuK; Jul 18, 2007 at 08:59 PM.
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