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  1. Battery and alternator requirements

    New Member Introduction
    I have a custom lithium battery. Is it ok to install it using the stock alternator?
  2. Battery terminal conductivity

    General Car Audio Discussion
    Searched everywhere for a couple days and couldn’t find this specific issue addressed. Should I upgrade my Kinetik AGM with M6 bolts to brass posts? Will the extra surface area from the brass posts help lower resistance, or is the small area the bolt screws down on to going to transfer...
  3. Lead acid and agm battery

    Technical & Advanced Car Audio Discussion
    Can you use an lead acid battery up front for starter and an agm in the back. Run the wire from alt to the back and to the lead battery front? Or run from lead acid to agm in the back with an isolator? Just wondering if I can run these batteries for right now. I have a 2500.1 skar on 2 10s...
  4. Picking the right battery for a system

    General Car Audio Discussion
    I have been doing research for a battery or super caps. I have a 2500 watt amp for 2 10s subs. The amp is a skar audio 2500.1, I have a 250amp high output alternator. Now I am trying to pick the right battery. Just get lost with all the numbers on them. Any help or thoughts will be good for me...
  5. BIG3 upgrade wiring with OEM Battery Sensor?

    Technical & Advanced Car Audio Discussion
    Attempting BIG 3 upgrade in my 2015 Subaru Legacy 2.5i. However, there is a device on the battery negative terminal that I don't know how to incorporate into the wiring. Online search says it's a "SENSOR-BATTERY (ALTERNATOR. CURRENT SENSOR.)" My guess is that this "Battery Sensor" might be a...
  6. Alpine Head Unit Instal

    General Car Audio Discussion
    I am installing my Alpine head unit today and have a few quick questions. - 2003 Dodge Ram - Head unit only, no Amp (yeah, I know) - Metra Harness has yellow (constant) with 15 amp fuse, red (switched), black (ground) 1) Is there any reason i need to connect the HU directly to the battery (I...
  7. Dead Amp = Battery Drain?

    General Car Audio Discussion
    Not sure what is going on but long story short, I hadn't driven my Passat in about a week (but it was being driven by my wife) but I went to drive it this past Sunday, I noticed my subwoofers weren't working. Upon closer inspection my JL 500/1 amp was no longer turning on - no lights on the AMP...
  8. Which Strains the Alternator More: A Second Battery or Capacitor?

    General Car Audio Discussion
    My headlights flicker a little when playing bass-heavy songs. I have a Kicker 43CXA6001 amp (link to Crutchfield) and was wondering if a cap or second battery would strain the alternator more. The gain isn't quite turned up a quarter of the way. I drive a 2016 Civic Sedan and getting a new...
  9. FS: 300 amp Alternator Excessive Amperage Brand NEW

    Car Audio Classifieds
    Product Brand & Model: Excessive Amperage 300amp Alternator Condition of all items: Brand NEW!!! Built for a 2015 Toyota Corolla. I sold the car before I could install this. It puts out 230 amps at 800rpm and 300 amps peak. Built in 14.4 v regulator. Build a bracket and slap it on whatever...
  10. Biggest newbee to audio

    General Car Audio Discussion
    2005 Silverado. I kinda dove deep and purchased an alpine f65 supporting the spr 60c in the front and sps 406 in the back and an alpine m240 supporting 2x pdr 12d4. My ? is what kinda alternator , battery, cap, etc do I need to support all this power. My current set up is stock head unit with...
  11. Battery Isolator for power cell

    New Member Introduction
    I have a few questions about adding an additional battery for assistance with the audio system. The intention is to support my main battery. Here is a diagram I'm not looking to put a huge battery in the...
  12. 7 Days Till Christmas Sale: XS VCM Products!

    7 Days till Christmas. Lets count down with some sales! Todays sale: 7% off XS Power VCM Products on our site. Use code VCM7 to save 7% and enjoy free shipping! Since 14V batteries need to be charged at 16.8V, XS Power has introduced the all new Voltage Control Module (VCM) that simply plugs...
  13. which battery?

    System Design: Help Me Choose Equipment For My Car
    I have a project which i'm sure some people have completed. I have a wagon that i plan to design and build a box for to contain 1 12" kicker comp, 2 6.5" coaxial speakers and a head unit. The sub woofer is powered by a 300.2 kicker amp and the coaxial speakers are going to be powered by an...
  14. Battery Replacement or Addition?

    System Design: Help Me Choose Equipment For My Car
    I am sure this has been addressed numerous times for different scenarios, but I will ask this in regards to my situation. I am currently running a stock 120a alternator and a basic battery. (car is 2007 Dodge Caliber SXT; I believe the battery size is group 86) My planned sound setup will draw...
  15. Ready to tackle some alternator whine?

    Technical & Advanced Car Audio Discussion
    Alright folks, I've been messing with car audio for a while now, but my alternator whine has me stumped. The situation is as follows: The car is 1996 Honda Accord 2.2L I have two Boston Accoustic GT series amps feeding front comps and rear coaxes. I also have one Alpine MRX-M240 for the subs...
  16. AC to DC converter to power my truck without draining my batterys

    Technical & Advanced Car Audio Discussion
    Hi there, Looking for a way to tune my sytem without the vehicle running but not use battery power. Is there a safe way of doing this that won't short anything out?
  17. Cap Reading Low Voltage

    General Car Audio Discussion
    I would appreciate any help! :) My subs keep cutting out and cap reads low voltage. I have been running my system for over a year without incident. It is composed of two, twelve inch Rockford subs, a 700 watt mono block amp also Rockford, a one farad stingray capacitor, four gauge wire...
  18. Dead battery from lack of use. What's going on?

    General Car Audio Discussion
    As some of you know I'm now at Virginia Tech and sadly don't have my 2008 elantra with me =[. It's back at home in my dads garage. Every week or two, he goes and takes it out for a bit just to keep the engine moving occasionally. Well the past three times he's gone to start the car, it's been...
  19. How to keep battery alive when doing adjustments?

    General Car Audio Discussion
    Hi, Does anyone know how to keep battery from discharging while making adjustments in HU, amps, processor? I have CTEK MXS 5.0 charger and I wonder if it would help and more importantly if it would be SAFE to connect it to my battery and dc socket while I'll be listening to my audio pounding...
  20. Weird battery drain - help please

    General Car Audio Discussion
    Hi. I have '98 BMW E39 520i EUR. I just noticed that after several days of not driving my battery drains dead so I can forget about starting my car. I have 2 amps + 4 speakers + aftermarket HU + 12" sub. Before that I've installed standard (let's say not budget but also not a premium MA) 85Ah...