OK boredom has got to me yet again

[turbojolt]

i have a set of rubbish old nova dash speakers and some 4" pioneer speakers also a crappie head unit

right im going to build a little inclosure to mount it all in my bedroom for a laugh

i have wood nails etc but im wondering if i can use a trickle charger on a car battery while its on powering the head unit or would it blow a fuse

also how long do you think a fully charged battery will last

[GSI_2009]

I tried the same thing but with a amp n sub on a charger but it blew the charger up

[MSG]

It depends on how much power you are going to use continuously so the charger should be rated to meet this continuous power rating, or else the strain could kill it, a car charger is probably no more than about 5 amps, so effectively you could only use about 60 watts of RMS power, you would get an awful distortion and possibly a humming sound from the charger if it is a unregulated charger.

But you could make a 12 power supply using a heavy duty 12 Volts transformer rated at about 10Amps (120Watts total RMS) and a 10Amp bridge reactifier and a smoothing capacitor to power all that up.

[phunky monkey]

how about a scalelectrix pack???

[no1toker]

i have a head unit and 600w amp powerd from the 12v supply of my pc. if u open up the pc look 2 see if u have a spare hard disk drive or cd power connecter. theres 2 black wires a yellow and red wire ! the yellow is the 12v live and either of the black 1s are th earth. works well and kiks the amp and head unit way louder than u would need indoors

[jayporn]

I did this when i was younger with a CB power pack, think it was only a 3amp constant 5A peak rating, Pretty loud with a set of 6X9's

maybe have a look on Ebay for a cheap one??
Some car chargers will cut off if you connect things to them, mine did anyway with a lamp connected.

cb power supply, Consumer Electronics, Computing, Photography items at low prices on eBay.co.uk

Edit, just looked at the date :L probably got something sorted now

[Collateral]

Did this go ahead.. any pics?

Because wouldnt mind seeing it

[Jasovanooo]

pc power supply ftw