How do I add a second battery and get 16+ volts

[tenn_tazz26]

I just ordered my amp and am waiting for it to arrive in about a week. While waiting I want to upgrade my electrical system to power it. I know I must first do the "Big 3" but I also want information on adding a 2nd or even third battery for that matter. How do I add additional batteries to my stock system? Does it require an isolator or is there some other way. I was told by a local shop some time ago that I should not bother upgrading my Alternator and to just add several batteries because with lots of power like I will be running "4000 watts" I should just use several batteries instead. If this is true then I guess that means I would need to periodically use a battery charger to recharge the batteries? I will be doing everyday driving but will probably only crank it real loud periodically. For driving levels I will probably listen to it at a slightly loud level but not extreme so how many batteries would I need so I don't have to keep chargeing them everyday.

Second, I hear of people saying if you can get more voltage like 16+ or even 18 volts your amp will output more power then rated in most cases. How do I go to a higher voltage level? I read about if you go to 18+ volts you can fry the stock electrical so from this I am assuming I have to go with a separate alternator just for the batteries or is there another way?

I have a Mazda B2600i 4x4 kingcab truck. I have not been able to find any alternators specifically for this. I have not gone through the formula yet but I am guess I will need a 300amp alternator.

Thanks,

Dale

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[Krown 10+ year member]

You would probably only need 1 extra battery if you're going to go that route. If used with an isolator you shouldnt have to ever charge the second battery manually.

 

[lilmaniac2 5,000+ posts]

isolater doenst allow you to connect 16v batts to a 12v system

you need a step up transformer, but in all honesty its not worth fooling with

 

[JustStoppingBy 10+ year member]

Buy the chip from Italy... totally charges your amps and batts at 16 to 18 volts.

its expensive tho.

 

[TreyE 10+ year member]

get a seperate 16v batt and alternator.

 

[AcidicDreams 10+ year member]

I just ordered my amp and am waiting for it to arrive in about a week. While waiting I want to upgrade my electrical system to power it. I know I must first do the "Big 3" but I also want information on adding a 2nd or even third battery for that matter. How do I add additional batteries to my stock system? Does it require an isolator or is there some other way. I was told by a local shop some time ago that I should not bother upgrading my Alternator and to just add several batteries because with lots of power like I will be running "4000 watts" I should just use several batteries instead. If this is true then I guess that means I would need to periodically use a battery charger to recharge the batteries? I will be doing everyday driving but will probably only crank it real loud periodically. For driving levels I will probably listen to it at a slightly loud level but not extreme so how many batteries would I need so I don't have to keep chargeing them everyday.
Second, I hear of people saying if you can get more voltage like 16+ or even 18 volts your amp will output more power then rated in most cases. How do I go to a higher voltage level? I read about if you go to 18+ volts you can fry the stock electrical so from this I am assuming I have to go with a separate alternator just for the batteries or is there another way?

I have a Mazda B2600i 4x4 kingcab truck. I have not been able to find any alternators specifically for this. I have not gone through the formula yet but I am guess I will need a 300amp alternator.

Thanks,

Dale

A) What equipment are you running, you likely won't need anything more than the big 3

B) Find out how many amps your alternator puts out. Most jap cars do 80 amps but the B2600 is essentially a ford ranger and it may share the alternator. Usually domestic trucks have a 100+ amp alternator. Ask a parts guy at napa what the stock replacement alternator runs for amps...

C) If you aren't running more than 1000w and listen to it at a volume where you aren't damaging your hearing you won't need additional batteries or an alternator..

D) Don't even bother with higher voltages... You need a different battery and a new alternator. Way more expensive and really pointless unless you are trying to get more power out of your amps for competition (amps put out more power at higher voltages, and lower output at lower voltages).

 

[tenn_tazz26]

I will be running 4000 watts through it with an Autotek MM4000.1D by maxxsonics. I was told it is 4000 watts rated at 14.4Volts so I would like to keep my voltage level as close to that as possible. I have a 93 mazda b2600 which is the last year the japs made it. I believe the alt is only a 80amp and looking at stores like Autozone and other places similar they don't offer much in the way of a higher amperage. I plan to run competitions for SPL so I need all of the power I can get. If I run multiple batteries off my current alternator I was afraid it would cause it to go bad sooner. Checking around I have not been able to find anyone who offers a high output alternator for my truck. I am thinking I will end up needing in a 300 amp range?

 

[JohnnyChuttz 10+ year member]

Look into alts for other Mazda Vehicles that share the same motor.

Or send your alt or one from the junkyard to be re-wound to the amperage you desire.

 

[lilmaniac2 5,000+ posts]

those amps are pretty effecient but it still takes power to make power

im actually trying to sell the 3000 watt version currently for 535 shipped /ad

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[mtlhead 10+ year member]

Look into alts for other Mazda Vehicles that share the same motor.

Or send your alt or one from the junkyard to be re-wound to the amperage you desire.

you really think that you could get an 80amp alternator rewound to be 300 Amps?

 

[AcidicDreams 10+ year member]

I will be running 4000 watts through it with an Autotek MM4000.1D by maxxsonics. I was told it is 4000 watts rated at 14.4Volts so I would like to keep my voltage level as close to that as possible. I have a 93 mazda b2600 which is the last year the japs made it. I believe the alt is only a 80amp and looking at stores like Autozone and other places similar they don't offer much in the way of a higher amperage. I plan to run competitions for SPL so I need all of the power I can get. If I run multiple batteries off my current alternator I was afraid it would cause it to go bad sooner. Checking around I have not been able to find anyone who offers a high output alternator for my truck. I am thinking I will end up needing in a 300 amp range?

IIRC in SPL comps you do your burps with the car off. So you do want more batteries.

However if you want to seriously compete in SPL comps the setup is very different from what you would want to do for daily driving. For instance your sub will need to be tuned high (over 40hz) which will sound like *** for music, plus the batteries you need for an SPL burp @ 4000w is going to be heavy and cost money...

If I where you I would definately decide which class you are going to run in and find out wether or not you burp with the engine running... and what ever other rules and regs are LONG before you do any installation.

If you are more worried about daily driving 4000w is totally unnecessary to say the least... Plus you will want a different box, a bigger alt (maybe even two), and you will want those batteries out of the car for daily driving...

Also 80amps is the most likely amperage for a jap alt... double check it.. you can have a local alt shop rewind it to make more power. There are also some places online that do it (iraggi, ohio generator, mean green?)