CK5
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Dual battery questions.

Maybe it boils down to the current capacity of the ACR. Can it pump hundreds of amps like the big relay, or just enough for charging? In other words, if the starting battery is dead, can the other one start the truck?

500 amp rating
 
the big ACR utilizing the parallel switch is the most flexable system you can run.... throw a 1, 2, All marine switch in the mix, and it's as flexable as a $2 ho...
 
the big ACR utilizing the parallel switch is the most flexable system you can run.... throw a 1, 2, All marine switch in the mix, and it's as flexable as a $2 ho...

What does the switch add?
 
a marine switch add's the capability to have either battery act as your primary and aux, depend on if you are on 1 or 2..... all gives you a permanent parallel if need be for whatever reason beyond what the actual parallel switch the ACR has......... whether it be some failure, etc..

there are many ways to wire that up utilizing both in varying ways with winches, etc, from a common hot out, to feeding various systems off the different marine posts... an example might be, main power off the common, front winch hooked to #1 post, rear winch to #2, or you could simply run everything off the common, etc......

let your imagination run wild! :pimp: :haha:
 
Once you put the marine switch you have my setup, except ACR in place of relay, right? I think you said that many posts above. What does the ACR get you that the relay doesn't? Just trying to understand.
 
it automatically senses when it needs to parallel/charge both batteries... in addition to the manual parallel or isolation you get with a relay...
 
it automatically senses when it needs to parallel/charge both batteries... in addition to the manual parallel or isolation you get with a relay...

Okay, so mostly insurance in case one battery totally croaks? I've had a few cases where the engine wouldn't turn over and I had to go flip the switch. It happens when the primary battery is too dead to keep the relay closed.
 
So the acr is a totally seperate beast than the 1 2 all switch?


yes, you can run either, or both.... it just adds more versatility to a system... an acr act's like a fancy isolator or relay might, kind of...

a marine switch splits up, or combines your bat sources..

but as I've alluded to, there are many ways to wire this depending on what your trying to achieve...
 
Thanks for the help, I have a decent grasp on this but don't worry one I get everything in the mail I'll be messaging you
 
Okay, so mostly insurance in case one battery totally croaks? I've had a few cases where the engine wouldn't turn over and I had to go flip the switch. It happens when the primary battery is too dead to keep the relay closed.


well, a bit more than that.... for one, unlike the relay setup you showed, it will keep both bats charged fully at all times.. with the picture you showed, if you run the marine switch on 1, with the relay off, it wont charge 2 at all... with an acr it would...

the relay diagram either has to be on "all" at all times, or the relay "on" to charge both bats.. and at that point, you may as well save the $150 in parts and possible connection failures and just run a pair in parallel..
 
Thanks for the help, I have a decent grasp on this but don't worry one I get everything in the mail I'll be messaging you


a lot depends on what you want from the system... running everything off one "common" feed is pretty straight forward.. where it get's a bit more interesting is when you use these components and vary the source feeds like I mentioned earlier.. main truck power off a main, winches off other sources, etc..

pm me when your ready and we can figure out what is best for you..
 
My goal is one battery to feed anything "stock" the second battery is for the winch, elec fans, off-road lights, and the arb compressor, and also for use as an emergency start.
 
in that case, with an acr and marine switch, you run as talked about above, except you would run all your accesory components directly off the #2 post on the marine switch.... and the standard truck stuff out the "common" post...

than with an acr you would run the truck around with the marine switch on #1 most of the time.... the acr will keep the aux bat fully charged and separate from the main stuff.... but in a pinch, you can parallel 1 and 2 by either the acr switch, or manual switching the marine switch to juice either side from the opposing bat..
 
well, a bit more than that.... for one, unlike the relay setup you showed, it will keep both bats charged fully at all times.. with the picture you showed, if you run the marine switch on 1, with the relay off, it wont charge 2 at all... with an acr it would...

the relay diagram either has to be on "all" at all times, or the relay "on" to charge both bats.. and at that point, you may as well save the $150 in parts and possible connection failures and just run a pair in parallel..

I do run with the switch on at all times. It's a toggle under the hood. That way one battery keeps the clock/etc alive with the engine off, and they are both connected when the ignition is on. The switch is just a fail safe for a dead battery. I don't feel like I'm missing any functionality.
 
until one or other get's killed, than you key on and one brings the other down to unstartable... or an alt dies and kills both batteries... a few other scenarios too, but if it works for you, more power to ya...
 
until one or other get's killed, than you key on and one brings the other down to unstartable...

That's what the switch is for.

or an alt dies and kills both batteries... a few other scenarios too, but if it works for you, more power to ya...

With the ACR I guess only one battery fries. I've never met anyone who had that happen, but a good feature I guess.
 
your right, it's useless...

I'm really just trying to understand what it does, not be a jerk. And if there is something cool that I don't have, I of course need to know about that. :D I need to spend some more time on their site and see if I can learn more about it. It may just not be for me, since I like to keep it symmetric and not have an engine battery and "other stuff" battery. I don't have much other stuff.
 
it's a relay that senses when it needs to open, that's all... is it for everyone? of course not...

a simple common out rig can run effectively on a relay, isolator, ACR, etc.. the acr just has an added ability that combined with a marine switch adds wiring capabilities and features the others don't have.....
 
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