wholehog wrote:I have searched and there are a few posts regarding this topic but we need something like"dual batteries for dummies"
All the other posts go of in electrical engineering jargon and thats it for me..call me to dumb...to tired...to drunk....all of the above ..but it is doing my head in
I want to install a second battery and all i know( i think) is that the second battery should be a deep cycle...agm perhaps?
Now..here is the good bit...
Do i use an isolator like the redarc......
Or can the ctek unit do the same thing as well as charge to 100%... i learned that alernator only charges to 70/80%
Pros and cons for either system would be good.....another contender is the Piranha sytem
ARB wanted 1100 bux to install redarc and run a few outlets in my tray......seems a little over the top.....any help would be appreciated..cheers
Alby wrote:A couple of links with good prices and graeat people to deal with
For a battery I have http://www.allpurposebatteries.com.au/p ... ducts_id=2, they also have the Fullriver brand that I would have got but they were out of stock.I have fitted mine in the try so you may not be able to get one this big under your bonnet
bill_i_am wrote:Drew and Alby.
Whether you leave the redarc in the circuit or take it out is up to you, because as Drew said it is not required with the ctek. However, the benefit of leaving it in the circuit is that it provides you with the option of paralleling the batteries together (for winching - if you have the 200amp redarc, or to start your vehicle if your cranking battery dies). Having said this, a dirty old solenoid will do the same thing, is better suited to higher currents and is cheaper.
Dluxv6 wrote:)and then try to start otherwise you get the start batt trying to pull huge current thru leads and will possibly overheat or melt undersized jumper leads
Cheers Drew
Alby wrote:bill_i_am wrote:Drew and Alby.
Whether you leave the redarc in the circuit or take it out is up to you, because as Drew said it is not required with the ctek. However, the benefit of leaving it in the circuit is that it provides you with the option of paralleling the batteries together (for winching - if you have the 200amp redarc, or to start your vehicle if your cranking battery dies). Having said this, a dirty old solenoid will do the same thing, is better suited to higher currents and is cheaper.
That is probably why they said to leave it in then. Just on that note though, one of the advantages in having a DC -DC charger is that it corrects the voltage drop that you get from long cable runs so most people will opt for a lighter guage cable in their install.
I am assuming the lighter cable would be an issue if you were to parrallel the batteries for cranking or winching, it would be the same as using cheap pissy jumper leads.
I have all of my wiring in 2B@S cable which is a bonus.
BTW the advantage that teh Ctek unit has over the others is that it has a built in regulator so you can plug a solar panel straight into it without having to buy one.
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