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View Full Version : Alternator and Battery



89AcCOrDmike
01-20-2003, 04:32 PM
I'm gettin a new amp to run my fosgates in the back, and the amp is a sony 1000 watt, do i have to worry about my battery and it being drained faster than the alternator can charge it? or is it all good?:pimp:

shepherd79
01-20-2003, 04:35 PM
i don't think so, just try to get biggest battery you can find,
i

AccordEpicenter
01-20-2003, 05:13 PM
if you run an optima battery and beef up your engine to chassis cable and your alternator to battery cable you should be ok. I was running 1300w and I needed a rewound alt putting out 140 amps in order to keep the stock battery. Also if you have a little dimming, you can also use a 1 farad cap. If you upgraded to a bigger amp id go for an alternator upgrade, but for now you should be ok.

RobT5580
01-20-2003, 09:11 PM
Out of all my systems the only problem i have had is with the lights dimming. I do have an optima battery but was fine before and is great to have now but i would think you can get away with only a cap. I have one but its not installed yet cause the car is away for the rest of the winter hopefully.

89bumblethumper
01-21-2003, 07:43 AM
I had major dimming happening everytime my subs hit with my old system (2 Sony 12" X-Plod, Kenwood 1000W amp). When i upgraded to the memphis system i just installed a 2 farad cap...$160 and i have had NO problem with any of my lights.

AccordEpicenter
01-22-2003, 10:33 AM
If you do run into probs, get a rewound alt

joshuabrack99
01-24-2003, 06:26 PM
or you could save a little money and get yourself a couple small marine batteries and put them back with your amp- you can use them just like a cap-may not look as good as a cap but will save you money- look at competitors with huge systems- batteries are used more compaired to caps

kennycm
03-02-2003, 10:19 PM
u might want to get a cap.

AccordEpicenter
03-03-2003, 01:35 PM
id just get the cap before you get into more batteries, because if you do that youll almost certainly need a bigger alt. Also batteries become a resistive load once the car is on and your current output suffers because it has to keep those batteries charged too so its usually not the hot set up for a daily driver, usually just huge comp vehicles, which usually have multiple alts anyways

Microstreak
03-07-2003, 07:55 PM
it is said that any system over 500w, a cap is recommended, for one over 1000w, u really nd to get one...my 2 cents..

AccordEpicenter
03-08-2003, 10:03 PM
yeah even with the bigger alt I have I still need one... Im running 1200wrms