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yeah split charge relays are just to stop you from killing you starter batt at shows and s**t

i don't know but electricity can do some weird things if it aint perfect

have you double checked the fuse in the 4 awg link?

well don't know what to suggest without looking at it tbh lol is the car pc running from the second batt?

well there's two way you could connect them series or parallel say you have two 12v 40Ah batterys in series (- on batt 1 to + on batt 2)you would have 24v 40Ah in parallel(both +'s together and both -'s together) you'd have 12v 80Ah (this is what you want)

tbh sounds like you wired your batts in series but doesn't look like it in your pic in the other thread:S have you got a multimeter??? i'd connect it up so it don't work but don't connect the car pc and measure the voltage

the 4 awg is melting???

yeah but are they tight and good contact? shouldn't drop that much voltage across the cable(with out it melting lol)

sounds like something aint right:S doubt it would be interference(sp) as that would happen all the time with the engine on what are the connections like on the 4 awg??

did you earth the 2nd batt to the exact same place as the first?? cos it sounds like it's either getting over or under voltage and not switching on

linked with long jumper cable? having two batts really shouldn't make blind bit off difference as it would just see it as one large capacity battery:S what extra wiring have you added? and how is it connected?

sounds like a wiring f**k up

i'm down about 55mm on 17's with an ET35 only rubs when i doing silly speed through roundabouts

you still need an enclourse for the box no matter which way it's mounted don't wanna run it free air:dead:

24 6 years NCD:eek: 1.6 with all mods declared £670

an inverter is used to turn dc into an ac waveform at around 400Hz wouldn't know where you would get one from though

prolly missing an inverter to make them work so best just to ditch them;)

is that ann angel i spy in the background:o

yep got me a creative labs x-fi sound card going to a cambridge audio amp running a set of mordaunt short speakers also got a ghetto maplins amp running a set of kef cresta 10's might up grade to 2.1 soon though

aint they out of a megane?

you sure it aint something on the boot rattling??? e.g number plate, wiper but yeah it is very good stuff

wouldn't it be better to take your amp turn on from your hu???

yeah i just measured an off cut of PG 4 awg and the conductor is about 9mm in diameter the 5.5mm ones prolly 8 awg

yeah tis right as long as it's the same earth point as the 1st batt 4 awg is the same as 25mm2 csa but it's diameter overall could be anything due to insulation thickness 100A max really for 4 awg but becareful with the starting current of your car

where's that - goinng to off your 2nd batt?

it would be cheaper to get them off e-bay than RS:clown:

check post #14 in this topic;)

alternator is fucked by the sounds of it

lol as with all electronics you aint going to get a fuse to operate fast enough to save it sorry

yeah just remember fuses are there to protect the cable and not the equipment