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battery recomendations
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<blockquote data-quote="HardofWhoring" data-source="post: 8854051" data-attributes="member: 674149"><p>You can get yours upgraded if you can find a shop that will do it. </p><p></p><p>You sure you need a second battery? What's the exact issue? Your batteries store energy, but alternator creates it. If you're on a stock alt, with a 3000w amp, you are around 300 amp draw. You definitely need an upgraded alt, but might not need another battery. Do the alt first, and you might be good to go. </p><p></p><p>it's roughly 10 amp draw for every 100 watts. </p><p>wattage / amp efficiency = wattage draw / voltage = amperage draw. </p><p>lets say: </p><p>3000w / 80% (.80) = 3750. 3750 / 14.4v = 260 amps. </p><p>That is when your volume is maxed out and your amp is pushing those notes at max. Between those hits it's charging. </p><p>If you wanted to never have a problem you take your total draw from all your amps, and add it to what your stock is. That's overdoing it on the high side, </p><p></p><p>Otherwise your alt is only going to draw the full vehicle when the lights are on, the turns, the fans, the cig lighters, fuel injection, (not sure if your vehicle is carbureted or not, or what electronics you have, but it's probably pretty low. I wouldn't be surprised if you are 80amp alt or less. </p><p></p><p>The type of music has an effect on the recharge rate. Rap with heavy bass is going to draw more than rock or country. You need to figure out the rest of your system, but you could probably get away with low 200 amp alt. If that was all my system might ever need, I would go with the 240 and feel like I had a little bit of room for a smaller 4ch amp too. Up to you. If you might ever want to add another 1000 watts, (if you can see yourself adding more down the road), then now is the time to plan for the total goals on that alt, and get the 300 now. Its a little more now, or it's spending several hundred more later if you do. </p><p></p><p>There isn't an easy answer where you're at, without considering what else you have now, and what else you might want.</p></blockquote><p></p>
[QUOTE="HardofWhoring, post: 8854051, member: 674149"] You can get yours upgraded if you can find a shop that will do it. You sure you need a second battery? What's the exact issue? Your batteries store energy, but alternator creates it. If you're on a stock alt, with a 3000w amp, you are around 300 amp draw. You definitely need an upgraded alt, but might not need another battery. Do the alt first, and you might be good to go. it's roughly 10 amp draw for every 100 watts. wattage / amp efficiency = wattage draw / voltage = amperage draw. lets say: 3000w / 80% (.80) = 3750. 3750 / 14.4v = 260 amps. That is when your volume is maxed out and your amp is pushing those notes at max. Between those hits it's charging. If you wanted to never have a problem you take your total draw from all your amps, and add it to what your stock is. That's overdoing it on the high side, Otherwise your alt is only going to draw the full vehicle when the lights are on, the turns, the fans, the cig lighters, fuel injection, (not sure if your vehicle is carbureted or not, or what electronics you have, but it's probably pretty low. I wouldn't be surprised if you are 80amp alt or less. The type of music has an effect on the recharge rate. Rap with heavy bass is going to draw more than rock or country. You need to figure out the rest of your system, but you could probably get away with low 200 amp alt. If that was all my system might ever need, I would go with the 240 and feel like I had a little bit of room for a smaller 4ch amp too. Up to you. If you might ever want to add another 1000 watts, (if you can see yourself adding more down the road), then now is the time to plan for the total goals on that alt, and get the 300 now. Its a little more now, or it's spending several hundred more later if you do. There isn't an easy answer where you're at, without considering what else you have now, and what else you might want. [/QUOTE]
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