Planning electrical for upgrade


Wumbojuice

CarAudio.com Newbie
Sep 19, 2019
11
1
Indiana
I want to upgrade my bass but I'm not sure what I'll need to upgrade electrical wise in order to do so. I want to run the taramps md8k (1 ohm stable) amplifier wired to 2 ohms. I currently have a 240 amp alternator, an optima redtop, 0 guage ofc big 3, 1 run of ofc 0 gauge, and a battery that my installer told me was a 1200 watt battery. Any help is appreciated helping me move forward. I'm still learning electrical.
 
Last edited:

CodyDaGoat

Member
Nov 26, 2016
69
5
OR
At 2 ohms, you are looking at about 5000 watts RMS (Assuming that is what the amp actually pushes out)

I just finished my 5k RMS build. I have a 285 hairpin alt from US Alternators, and 3 XS Power AGM D3100s in the trunk. Before I started the build I asked the same question and was told what I have will BARELY cut it.

I haven't dropped below 14 volts running this setup, but there is some drop when the subs do hit. And the longer they are on, the lower my voltage gets.

I'd suggest doing something similar or go lithium. I have 2 runs of sky high 0 gauge, and the big 3 done to mine as well.

I've read of people having problems on 6k with a 240 amp alt and like 380ah of AGM batteries. It's gonna take a few good AGM batteries, 2 runs of 0 gauge, and depending on your voltage, a bigger alt. Hook up a voltmeter and watch it when you're done
 
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Wumbojuice

CarAudio.com Newbie
Sep 19, 2019
11
1
Indiana
It looks like 60-80 Ah of Yinlong Lithium is my best choice then as prebuilt or DIY is around 5 to 6 hundred cheaper than 3 of those XS D3100 batteries plus higher C's than AGM. Thanks for sharing your experience. Very insightful. My current build is on an rp2000.1d and I never drop below 14.4 full tilt while driving so it's difficult for a noob like me to gauge how much draw it can take.
 

danielbea122

CarAudio.com VIP
Jul 29, 2019
333
36
Tampa
It looks like 60-80 Ah of Yinlong Lithium is my best choice then as prebuilt or DIY is around 5 to 6 hundred cheaper than 3 of those XS D3100 batteries plus higher C's than AGM. Thanks for sharing your experience. Very insightful. My current build is on an rp2000.1d and I never drop below 14.4 full tilt while driving so it's difficult for a noob like me to gauge how much draw it can take.
I have the taramps bass 5k on a 100amp alternator and a Northstar agm under the hood with a kinetik Blu 2400 in the trunk (that's the same size as those xs batteries)

18518


One extra battery not 4
 

Timbo74

CarAudio.com Well Known
Aug 10, 2019
121
14
Wisconsin
It looks like 60-80 Ah of Yinlong Lithium is my best choice then as prebuilt or DIY is around 5 to 6 hundred cheaper than 3 of those XS D3100 batteries plus higher C's than AGM. Thanks for sharing your experience. Very insightful. My current build is on an rp2000.1d and I never drop below 14.4 full tilt while driving so it's difficult for a noob like me to gauge how much draw it can take.
You guys are playing with fire!
I have personally witnessed several lithium batteries go up in flames, and those lithium’s were not connected to high powered stereo systems!
Lithium batteries become very unstable when they are discharged, or charged at too high of rate!
I would never use a lithium battery in a high powered stereo, AGMs are much safer!
 

danielbea122

CarAudio.com VIP
Jul 29, 2019
333
36
Tampa
At 2 ohms, you are looking at about 5000 watts RMS (Assuming that is what the amp actually pushes out)

I just finished my 5k RMS build. I have a 285 hairpin alt from US Alternators, and 3 XS Power AGM D3100s in the trunk. Before I started the build I asked the same question and was told what I have will BARELY cut it.

I haven't dropped below 14 volts running this setup, but there is some drop when the subs do hit. And the longer they are on, the lower my voltage gets.

I'd suggest doing something similar or go lithium. I have 2 runs of sky high 0 gauge, and the big 3 done to mine as well.

I've read of people having problems on 6k with a 240 amp alt and like 380ah of AGM batteries. It's gonna take a few good AGM batteries, 2 runs of 0 gauge, and depending on your voltage, a bigger alt. Hook up a voltmeter and watch it when you're done
I finished 5k rms build and I have a 100amp alternator with only one extra battery
 

Boominburban

CarAudio.com Elite
Jan 16, 2015
1,368
6
Athens, TN
LTO lithium DOES NOT go up in flames. It IS the safest lithium chemistry currently on the market for the average consumer to purchase/use. I have personally been running it for almost two full seasons now, along with hundreds of others. Yinlong cells are LTO chemistry. I personally use an Alterairenano pouch style LTO cell, with a very high power density. And great charge/discharge C ratings. And I have a fairly high powered audio system.
 
Last edited:

Boominburban

CarAudio.com Elite
Jan 16, 2015
1,368
6
Athens, TN
I want to upgrade my bass but I'm not sure what I'll need to upgrade electrical wise in order to do so. I want to run the taramps md8k (1 ohm stable) amplifier wired to 2 ohms. I currently have a 240 amp alternator, an optima redtop, 0 guage ofc big 3, 1 run of ofc 0 gauge, and a battery that my installer told me was a 1200 watt battery. Any help is appreciated helping me move forward. I'm still learning electrical.
Wired to 2 ohms, you will likely be rising to 4 ohms+, so you are likely never going to see close to 4k ( think probably 2-3k rms) out of that 1 ohm model MD8k amp. Why don't you just get a 2 ohm model? Then you would likely see 3-4k rms after rise.
I would definitely upgrade your electrical some. I would go with 80ah yinlongs, delete all other batteries. And possibly a good name brand 270-300 amp alternator.
 

Timbo74

CarAudio.com Well Known
Aug 10, 2019
121
14
Wisconsin
LTO lithium DOES NOT go up in flames. It IS the safest lithium chemistry currently on the market for the average consumer to purchase/use. I have personally been running it for almost two full seasons now, along with hundreds of others. Yinlong cells are LTO chemistry. I personally use an Alterairenano pouch style LTO cell, with a very high power density. And great charge/discharge C ratings. And I have a fairly high powered audio system.
I’m glad your having good luck with yours. I know the tech is getting better, but That does not mean one faulty cell can’t, or won’t become unstable...Hell, whole cargo jets have went up in flames, and crashed into the ocean, because of one faulty 18650, that started the domino effect.
 

danielbea122

CarAudio.com VIP
Jul 29, 2019
333
36
Tampa
I’m glad your having good luck with yours. I know the tech is getting better, but That does not mean one faulty cell can’t, or won’t become unstable...Hell, whole cargo jets have went up in flames, and crashed into the ocean, because of one faulty 18650, that started the domino effect.
My concern would be having to depend on lithium to start my car.
 
D

Deleted member 677857

I'm currently running two runs of 2/0 for my primary power to sub amps. 247 amp (test out put) Mechman alt. The Yinlong LTOs are a great option for a lithium battery build. Great data coming out on them. Don't forget 3V 3000f capacitor banks as another option. XS power, Maxwell, and Tecate have them available. 12 caps give you up to 10K watts power demand coverage.
 
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danielbea122

CarAudio.com VIP
Jul 29, 2019
333
36
Tampa
I'm currently running two runs of 2/0 for my primary power to sub amps. 247 amp (test out put) Mechman alt. The Yinlong LTOs are a great option for a lithium battery build. Great data coming out on them. Don't forget 3V 3000f capacitor banks as another option. XS power, Maxwell, and Tecate have them available. 12 caps give you up to 10K watts power demand coverage.
What I did was start with the bare minimum needed which was big 3, all 1/0 wire and the extra battery. If that isn't enough then add ho alternator, cap bank etc and save some money by not buying things you don't need right away.

The minute I see my voltage drop below 13.5v I'm buying the heart of the electrical system a HO alternator
 
D

Deleted member 677857

What I did was start with the bare minimum needed which was big 3, all 1/0 wire and the extra battery. If that isn't enough then add ho alternator, cap bank etc and save some money by not buying things you don't need right away.

The minute I see my voltage drop below 13.5v I'm buying the heart of the electrical system a HO alternator
I'm just getting back into this after 25 years. LOL The alternator definitely help me out big time. Night and day difference. IDK what vehicle you have, but if it's a late model Toyota they come stock with a hairpin style alt. If you do have a stock hairpin, you can mod it yourself for less money than buying a built one.
 

Boominburban

CarAudio.com Elite
Jan 16, 2015
1,368
6
Athens, TN
My concern would be having to depend on lithium to start my car.
MANY of us have been using Lithium alone for a while now. NO issues. Most start better with lithium, as it has a way better discharge and burst rate than a typical AGM battery.
And once again, if using LTO lithium, it WILL NOT combust, or go up in flames due to a bad/vented cell.
I would personally NEVER use an 18650 cell in my vehicle ... They do/will combust/vent violently without a doubt ....
 

danielbea122

CarAudio.com VIP
Jul 29, 2019
333
36
Tampa
MANY of us have been using Lithium alone for a while now. NO issues. Most start better with lithium, as it has a way better discharge and burst rate than a typical AGM battery.
And once again, if using LTO lithium, it WILL NOT combust, or go up in flames due to a bad/vented cell.
I would personally NEVER use an 18650 cell in my vehicle ... They do/will combust/vent violently without a doubt ....
I didn't say it would go up in flames.

You got me rethinking my 18650 and 20700 vape batteries now though lol. I didn't even know but I use lithium daily :ROFLMAO:
 

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