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» Termpro Audio Forum » Component Specific Topics » Alternators, Batteries, Interconnects » bass race/street beat battery help

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Author Topic: bass race/street beat battery help
SQcrewcab
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OK guys, I will have aprox. 1200 amp of current draw from my amps. I do have a Powermaster Alt that dyno'd 153 amps at idle and 251 at 2000rpm, so lets use that figure. What will it take for batteries to Stay as close to posible to 12v after a full 35 seconds? I would love to run a 2nd alternator but can not do so with streetbeat rules. so how many batteries? Help me out here Scottie, how many d3100s?
Posts: 244 | From: Springfield, IL | Registered: May 2005  |  IP: Logged | Report this post to a Moderator
ORION93
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With 14500 watts I would run 5 or 6 D3100 if you are trying to stay above 12v.

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1993 Dodge Dakota LE
Street Max
2 Fi BL's
2 Hifonics Brutus BXi 2008D
Mechman 250 amp street beater alt
Power Master D3100

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Posts: 155 | From: Dayton, Ohio | Registered: Mar 2008  |  IP: Logged | Report this post to a Moderator
SQcrewcab
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Damn, are those D3100s that strong? I was expecting to hear 10 or so..
Posts: 244 | From: Springfield, IL | Registered: May 2005  |  IP: Logged | Report this post to a Moderator
ORION93
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I may be wrong... i am trying to compaire it in perspective to my buddy running 5k watts off of two D3100 and 1 HC2000. and i run 4k off of one D3100 for bacerace and never drop bellow 12v(with a 250 amp alt) so i am just makein a guess.

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1993 Dodge Dakota LE
Street Max
2 Fi BL's
2 Hifonics Brutus BXi 2008D
Mechman 250 amp street beater alt
Power Master D3100

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Posts: 155 | From: Dayton, Ohio | Registered: Mar 2008  |  IP: Logged | Report this post to a Moderator
scottiej
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5 or 6 should be plenty. XS Power would normally recommend 3-4 D3100's for 14,500W for daily use.

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Scottie Johnson
Sound Pressure Technologies

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Posts: 2473 | From: Knoxville, TN | Registered: Apr 2001  |  IP: Logged | Report this post to a Moderator
SQcrewcab
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Thanks Orion and Scottie.
Posts: 244 | From: Springfield, IL | Registered: May 2005  |  IP: Logged | Report this post to a Moderator
dB Don
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I use the 2500wrms per battery minimum standard because most will at least beat on their system long. Its also good for a bit of key off time too.

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-Donald Hebig
-All Out S.P.L. Saskatchewan's dB Drag event promoter
-Check the Termpro homepage partners for the companies I support.
Posts: 2617 | From: Borden, Saskatchewan. Canada | Registered: Feb 2000  |  IP: Logged | Report this post to a Moderator
   

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