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What else do i Need?

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Topic review
   

Expand view Topic review: What else do i Need?

by Bwcad1 » Thu Jun 08, 2006 11:00 am

good advice only thing i see is that the everstart maxx (walmart batts) are not deepcycle agm they are normal lead acid batterys.

by solacedagony » Thu Jun 08, 2006 10:47 am

If you decide to get another battery, get yourself a deep cycle such as the Optima Yellow Top. Stinger, Odyssey and Kinetik are some other companies that make good deep cycles. I also heard someone talking about the batteries at Walmart doing them well, and those are only about 65$ at my Walmart. Pretty cheap compared to those other ones. Btw, when you're looking at how powerful the battery is, I'm pretty sure you want to look for the amp hour (aH) ratings.

by Bwcad1 » Thu Jun 08, 2006 9:28 am

another battery would be a good idea

by Schmuck » Thu Jun 08, 2006 9:01 am

When my car is running with the air on and the radio on but turned all the way down the voltage is 13.93v at idle after it has warmed up. When i turn my truck off my cap reads 12.5v. Oh and i have not taken it to the alt shop but my mechanic did some tests and he said it was reading 13.9 and it was maxing out his voltmeter that read up to 130A at idle. I am going to take it to the alt shop though just to find out for sure. I had all my connections in the back checked and they were all reading 13.7v, all of these readings are with the music all the way down, it is off. But i did not have them check my connections under the hood. The shop that did the install said i need a 2nd batt because the one under the hood is not keeping up. Does this sound right?

by imbrognolouis » Thu Jun 08, 2006 7:51 am

ah i see, thank you very much for the clarification. makes sense :happy055:

by Bwcad1 » Thu Jun 08, 2006 6:49 am

imbrognolouis wrote:so basicaly if you have a bigger HO alternator and it drains it and dips to the batteries the HO alternator needs more jiuce to keep going than a normal alternator would? Or are ya kinda saying the system needs more headroom cause its way to powerful and needs the extra batteries to dip into for power?
kinda in theory but if you didnt have the HO alternator and you had more batteries the alternator couldnt recharge them all in time between peek hits?
Well kind of but your first statement is kind of confusing. The alternator doesn’t use electricity it creates it. His larger alternator can produce more current than a normal alternator would there for it can charge more batteries and power more things. Like a system. Now if your system pulls more current than the alternator can supply it comes from the batteries. And when the system isn’t pulling more current than the system needs it charges the batteries. And yes if you didn’t have a ho alternator and it couldn’t produce enough current to run the system it cant produce enough current to charge the batteries and run the car.

by imbrognolouis » Thu Jun 08, 2006 6:24 am

so basicaly if you have a bigger HO alternator and it drains it and dips to the batteries the HO alternator needs more jiuce to keep going than a normal alternator would? Or are ya kinda saying the system needs more headroom cause its way to powerful and needs the extra batteries to dip into for power?

kinda in theory but if you didnt have the HO alternator and you had more batteries the alternator couldnt recharge them all in time between peek hits?

by Bwcad1 » Thu Jun 08, 2006 6:16 am

solacedagony wrote:Bwcad1 is correct, but don't misinterpret what he's saying. For an average person that almost exclusively plays their system while the car is running, you need to be looking at a HO alternator to power your system. For competitors, the multiple batteries are needed because many competitors are required to keep their cars turned off to compete. In the competitors case, the alternator actually doesn't matter until it's time to turn the car back on, which is when the batteries begin to recharge.
extra batteries are for more than just this. see the reasons stated above. extra batteries are always benificial as long as you have the charging system to back it up.

by Bwcad1 » Thu Jun 08, 2006 6:14 am

solacedagony wrote:When your car is running, you're probably running consistently more around 13.6v. Idle is probably slightly lower, between 12.5v and 13.6v. It depends on the alternator.

I'm not sure if the battery is actually used as like a reservoir once your car is on and than is simultaneously recharged or if your car runs straight off the alternator and then dips into the battery when it needs more than the alternator can put out at once. In any case, if you try to draw more than your alternator can put out, it will use charge from your battery.
Correct but most cars sit anywhere from high 13s to low 14s mine sits at 14.6. the alternator runs the car the battery is just there to start it and is charged by the alternator. dont forget music is dynamic. for instance your not going to constantly draw 150 amps it may go from 20 - 60 - 35 - 175 then back to 60 your alternator will absorb most of the amp draw however if it cant supply enough current at the time the system will draw from the batteries this is where the larger alternator comes in. during the lower amp draws like the 20a draw it will recharge the battery/s so then the batterys are back at full charge when the next large draw of current comes.

by solacedagony » Thu Jun 08, 2006 6:12 am

Bwcad1 wrote:his alt amperage is fine your not going to get much bigger than that and hes only running about 2600 watts. 220 amps should be fine it seems to me that the alt is not working properly. you can try a smaller pulley but he already has an upgraded alt and the pulley is specifically designed for that alt. any change could result in catastrophic failure or less current than its already putting out.




This is incorrect a second third or even fourth battery is beneficial only if you have the alternator to support it which he does. (although I don’t belive its working correctly as stated above) I run 2 batteries in competition (only 2 because that’s what my class allows.) because I can draw much more current than I could with a single batter on top of that the second battery is withing 6 inches of my amp. Again this only matters if you have the alt to support it.
Bwcad1 is correct, but don't misinterpret what he's saying. For an average person that almost exclusively plays their system while the car is running, you need to be looking at a HO alternator to power your system. For competitors, the multiple batteries are needed because many competitors are required to keep their cars turned off to compete. In the competitors case, the alternator actually doesn't matter until it's time to turn the car back on, which is when the batteries begin to recharge.

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