Quick question about adding a 2V batt to a bank of 12V batts...

[RAM_Designs 5,000+ posts]

I searched and searched but never really found exactly what I was looking for.

Let's say I have 3 12V batts, but want to make it to where I have a resting voltage in the upper 14's. Would I need to wire a 2V batt in series with every 12V batt and then parallel all of those 14V combos together, or can I just have one 2V batt and the 3 12V batts can act as one big batt once all wired in parallel? My mind is going nuts trying to figure out how this can work with as little hassle as possible...

Click to read more...

 

[18inchjeepin 10+ year member]

it will be a hassle regardless, the problem is when the bass hits, it will drain quick to 12v. So its best to get as many ah in 2v as you do in 12v, that would be a lot of 2v cells. Also you would need to charge at atleast 16v, so an ext reg alt is needed.

 

[RAM_Designs 5,000+ posts]

it will be a hassle regardless, the problem is when the bass hits, it will drain quick to 12v. So its best to get as many ah in 2v as you do in 12v, that would be a lot of 2v cells. Also you would need to charge at atleast 16v, so an ext reg alt is needed.

Yeah, seems like I'd be better off just being happy with 12.8V once the amps get past my alt.

 

[audiolife 5,000+ posts]

you would need to make sure their reserve were near equal and that they discharged at near the same rate.

 

[Sarthos 10+ year member]

Only way to get it to work right would basically be to use just 2 volt batteries wired in series to make 14 volt batteries, then wire multiples in parallels. Or you could get some 14.4v Lithium-ion cordless drill batteries and wire a bunch of them into a series, see how that works.

 

[Tehgregzor 10+ year member]

Only way to get it to work right would basically be to use just 2 volt batteries wired in series to make 14 volt batteries, then wire multiples in parallels. Or you could get some 14.4v Lithium-ion cordless drill batteries and wire a bunch of them into a series, see how that works.

he might have the voltage, but he'd never get enough amperage from a battery of that type. I'd worry more about a stable electric current, before only considering the voltage.

 

[RAM_Designs 5,000+ posts]

I found some 2V batts that range from 300-1500ah, so finding the right size to be able to match whatever I put up on the 12V size won't be an issue. I just don't know if it's worth spending 400-600 for a ~400ah 2V batt...

 

[Sarthos 10+ year member]

400-600 for a 400 ah 2v battery? Remember that that's as much power in watts as a 67 ah 12 volt battery. Your best bet would be to either find 14v batteries or add on another alternator or two.

 

[audioarsonal 10+ year member]

The trouble is not worth the gain IMHO.Just stick with 12v.

 

[RAM_Designs 5,000+ posts]

The trouble is not worth the gain IMHO.Just stick with 12v.

That's more than likely what I'm doing...too much of a pair for me.

 

[Sarthos 10+ year member]

Remove power steering and air conditioning from the car and use their space to run more alternators.

 

[RAM_Designs 5,000+ posts]

Remove power steering and air conditioning from the car and use their space to run more alternators.

This is my daily driver, no way I'm giving up AC and PS...I still probably have room for at least 2 more alts though('04 Dodge 1500).

 

[McIntosh 10+ year member]

Remove power steering and air conditioning from the car and use their space to run more alternators.

Remove seats, dashboard and windshield. Sit on milkcrate. "Sound" advice.