NEED HELP PLZ...

audiokev · Posted: Sun Dec 02, 2007 2:02 pm Post subject: NEED HELP PLZ...

ppl i have this nissan sufari..i want to put music in it but is 24volts
an it have 2 batteries 1 12v1 24v de 24 gettin good charge
but d 12 not gettin much..an i have a small knock in it but de
12v bat only runnin down...it have no space for an extra alternator
wat 2 do??? spend rellllll money wit some waist a time electricians...
any help??any electrician that could help???

xeon · Posted: Sun Dec 02, 2007 3:46 pm Post subject:

^^^ Hmm dat sounding rel complicated horse

audiokev · Posted: Sun Dec 02, 2007 3:55 pm Post subject:

it isn't if you no wat i'm tryin to say Wink

3stagevtec · Posted: Sun Dec 02, 2007 4:17 pm Post subject:

so you have a 24V system.. Shocked

they have 24V vehicles??

ok, so i understand havin a 24V battery... but what about the 12V battery? is the 12V battery connected in parallel with the 24V system?? or is it in an isolated 12V system? or.. do you just have a 12V battery in the vehicle...

anyways, here's a simple solution... get two identical 12V batteries and run them in series.. (that way you will end up with 24V).. and now all you have to do is just connect your 12V audio equipment across one of the 12V batteries... Wink

(note, in theory, it should work, but i have never tired it before.. so be warned..)

audiokev · Posted: Sun Dec 02, 2007 4:24 pm Post subject:

well is 2 baterries- 2 12v but they parellel soo 1 is 12v an de other 24v
i doh tink that solution will work b'cuz i wouldv'e been suggested 2 do that already

3stagevtec · Posted: Sun Dec 02, 2007 4:31 pm Post subject:

^ huh.. two 12V batteries in parallel will result in 12V overall... you won't get 24V unless the two 12V batteries are connected in series...

audiokev · Posted: Sun Dec 02, 2007 5:37 pm Post subject:

oh shux i meant series...but still frm 1 u gettin 12v an d otherr 24v
an de 12v not gettin much charge as d 24v thats y d 12v runnin down
wen i play d music..

Comfort · Posted: Sun Dec 02, 2007 8:10 pm Post subject:

YOU SHOULD CHECK AH GOOD ELETRICIAN FIRST..............................

MonsterPower · Posted: Sun Dec 02, 2007 8:56 pm Post subject:

we had that problem with our trucks .. apparently the "back" battery dies first so what has to be done in to add a third battery in parallel with the second battery which is the one with the pole connected to ground .. what this does is reinforce the charge reserve and so u may be able to play .. however i suggest u get ur battery checked first as it may need water or signs of goin tru

3stagevtec · Posted: Mon Dec 03, 2007 12:09 pm Post subject:

orrr, i now see wa goin on... two 12V batteries in series... ground to the 1st battery is 12V & ground to the 2nd battery is 24V...

hear this suggestion, to get max life out of both batteries (assuming they are both good), switch them around every month or so... that way, both will be charged properly... Wink

audiokev · Posted: Tue Dec 04, 2007 3:18 pm Post subject:

^^^i doin that right now..but ppl i lokin to put realll music in in Rolling Eyes

3stagevtec · Posted: Tue Dec 04, 2007 7:55 pm Post subject:

ok, try this one... connect your music across the other battery.. (the one you refer to as the 24V battery..)

use the positive terminal and the negative terminal from the battery itself... the negative battery terminal will be ground in this case and the positive terminal will give you your +12V supply...

DONT use the vehicle chassis as ground or you will get 24V!

(now i'm 100% sure that you will get 12V from what i said above and it should definitely work in theory, but i have never tried such a hookup before... so be warned and test first..)

audiokev · Posted: Wed Dec 05, 2007 4:36 pm Post subject:

^^^pal u sure bout that...cause if that was d case somebody would've told
me before #Fade in

badang · Street 2NR Joined: 28 Nov 2006 Tech posts: 49 My 2NRide:

one way to check voltmeter the 24 volt battery +ve and -ve before you hook up amp and thing

boom · Posted: Wed Dec 05, 2007 6:08 pm Post subject:

24volt battery?

Try monstar power suggestion if you want cuz I know for a fact that works...

3stagevtec · Posted: Wed Dec 05, 2007 8:58 pm Post subject:

nigel1977 · Posted: Wed Dec 05, 2007 9:14 pm Post subject:

We had this problem offshore at my job. Our remote monitoring system uses both 12v and 24v. We constantly had to rotate batteries as one would drop to below 10v and the other, rise above 17 volts, to the point of its demise.

Here is the solution for our problem. It might work for you.

http://analyticsystems.com/products/vtc600.htm

DESCRIPTION

The VTC600 Series Voltage Converter is the high output version of the VTC300 Series Voltage Converter using more powerful components, and a generously sized external heatsink for additional cooling.

This all new single board design incorporates state of the art switchmode technology for unmatched efficiency and ultra-quiet operation.

Multiple stages of filtering reduce radiated or conducted noise to very low levels. Extra features include adjustable output voltage, audible and visual indicators for low input voltage, low output voltage, over temperature and overload. Safety features include reverse input protection, over-temperature shutdown, current limiting, short circuit shutdown, a dry contact alarm relay output and output overvoltage crowbar.

Optional features include a remote panel monitoring with On-Off control.

Also check out this...
http://analyticsystems.com/products/bcd600.htm
DESCRIPTION

The BCD600 battery charger provides up to 600 watts to charge a 12V or 24V battery system (1 bank) from a 24V, 32V or 36V source. The source and the batteries under charge must share a common ground.

The all new single board design incorporates state of the art switchmode technology for unmatched efficiency and ultra-quite operation. Multiple stages of filtering reduce radiated or conducted noise to very low levels. Extra features include adjustable output voltage, audible and visual indicators for low input voltage, low output voltage, over temperature and charging.

Safety features include reverse input protection, over-temperature shutdown, current limiting, short circuit shutdown, and output overvoltage crowbar. Optional features include a dry contact alarm relay output, and remote panel monitoring with On/Off control.The two stage charging profile charges the batteries at a constant current equal to the maximum continuous output of the unit. When the battery voltages come up to the float voltage that the unit is set to, the current into the batteries will taper off as necessary to maintain the batteries at the float voltage.

The unit can be left permanently connected without fear of overcharge or damage to the batteries. The adjustable float voltage feature allows the unit to be used for any type of battery including lead acid and gel cell. Available options include a remote control.

These are both industrial units. They arent cheap. The BCD version will "act" as you 12v "alternator" to charge a 12v battery or a bank of 12v batteries.

The local agency for this brand is a company in marabella called Control technologies. If you call, ask for Rajesh.

3stagevtec · Posted: Wed Dec 05, 2007 9:36 pm Post subject:

audiokev · Posted: Fri Dec 07, 2007 6:50 am Post subject:

but waz d average price of those nigel?
i runnin about 230 amps of power..how many will i need?

nigel1977 · Posted: Fri Dec 07, 2007 9:50 am Post subject: