low wattage electronics circuit installation

i have a low wattage electronics circuit (9-12v) and i was wondering what the best or the easiest way to install it to the battery without blowing out the circuit. and without plugging it into the cigarette lighter.im sorta like jesus, in a non-sacreligious way.

You will need to clarify your question again. Do you have a unit that requires 9 or 12 volts? Or does the unit operate within that voltage rating(s)??? Regards EVIL Teken . . .

it operates within 9 and 12 volts. all i need to know is what i need to wire up between the circuit and the battery so i dont fry the circuit. ie: a step-down transformer, high wattage resistors, stuff like that...im sorta like jesus, in a non-sacreligious way.

If the unit will operate within 9-12 VDC. All you need to do is wire it directly to the primary battery, with the appropiate fuse within 18" of the terminal contact of the battery post. The only thing you really need to take into consideration is what the current draw will be in the circuit, along with how long the run will be. That will determine the wire guage you also require to ensure many years of trouble free service. Regards EVIL Teken . . .

The only thing that is important is *IF* the unit will not accept above 12 volts. As when your vehicle is running it will output 13.6 - to - 14.8 VDC. If that is the case you will need to use a appropiate limiting resistor, rated with the correct wattage. ie. 1/2 watt, 1-2 watt etc. Regards EVIL Teken . . .

yea, i do a lot of electronic wiring but im still getting used to car wiring and i wasnt sure if the current or the voltage of the battery was very high. wat would be the best way to mount the fuse? or should i just let it hang off the negative or positive wire?im sorta like jesus, in a non-sacreligious way.

turtle_power wrote: i wasnt sure if the current or the voltage of the battery was very high.

The only thing you need to be clear on is whether the unit will operate fine with a input voltage of 13.4 - 14.8 VDC. The unit / device you have determines the current draw, not the battery or alternator.

turtle_power wrote: wat would be the best way to mount the fuse?

The inline fuse should be placed in series to the positive supply line. Again you should *idealy* place the fuse as close to the battery terminal as possible. This will ensure the most wire is protected after the fuse in the circuit. Regards EVIL Teken . . .

Teken wrote: turtle_power wrote: i wasnt sure if the current or the voltage of the battery was very high. The only thing you need to be clear on is whether the unit will operate fine with a input voltage of 13.4 - 14.8 VDC. The unit / device you have determines the current draw, not the battery or alternator. turtle_power wrote: wat would be the best way to mount the fuse? The inline fuse should be placed in series to the positive supply line. Again you should *idealy* place the fuse as close to the battery terminal as possible. This will ensure the most wire is protected after the fuse in the circuit. Regards EVIL Teken . . .

well when i meant mount the fuse i meant securlly attach it to the chassis or another piece under the hood or somewhere near the firewall

im sorta like jesus, in a non-sacreligious way.

Really up to you. Just zp tie it to another OEM harness, or similar mounting point. Regards EVIL Teken . . .