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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › Pic's Up-24v Non-Generator charge system(Deep Cycle),w/Icharger 3010b,Installed System Complete
04-11-2014 01:59 AM  5 years ago
BobOD

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New York- USA

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Yes, and the most safe will be to use a breaker of sufficient rating for the need, not significantly more for no good reason. And certainly not significantly more than the wire is rated for. This is pretty obvious so don't see what point you're trying to make. Sure seems you are only trying to prove me wrong...for some odd reason. I wasn't wrong. 80 amps is appropriate. Get over it. LOLTeam POP Secret
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04-11-2014 02:04 AM  5 years ago
Ronald Thomas

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Gainesville, Fl, USA

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Ok Bob, go against what car manufacturers have done for years. I forgot, you are never wrong, especially when you just make stuff up
Good night buddy, I am sure I will post something again tomorrow so you can have something to do.
Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!
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04-11-2014 02:38 AM  5 years ago
BobOD

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Sorry but car manufacturers don't all use a 250 amp fuse for something that's going to draw 40 amps. Have a closer look at things in there. Nice try to somehow prove me wrong though. What's so wrong about 80 amps in a 100 amp rated wire on a circuit intended to draw 40 amps? Why would you use 250A? Sheesh.

Getting back to the topic, Kingjoe, there's another thing that might be more important than the electrical short issue. These batteries vent Hydrogen gas while charging so make sure your windows are open during the charge.
Team POP Secret
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04-11-2014 02:49 AM  5 years ago
Ace Dude

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USA

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IMHO a fuse would be the simplest, lightest, smallest, and least expensive option. Ideally the fuse should never blow so if it ever goes you know something serious occurred.

On some Revolectrix chargers their standard charge leads have fuses on both the positive and negative leads.
  
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04-11-2014 02:55 AM  5 years ago
JEEPWORLD2002/2

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Blue Bell, Pa

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My suggestion would to use fuseable link like older card did. Cheap easy and simple to repair or one of those glass inline fuses for car audio ??Trex600n,Trex500,MR25,MikadoLoGo5003d/KDE,Goblin 380XNova,CastleCreations,Ys,JR XG8,Tags Mini XBus Dmss//FAA# FA3NYC9TAP
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04-11-2014 02:58 AM  5 years ago
BobOD

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The breaker is 10 bucks. How cheap you want to go?
It also serves as a disconnect. I use them, very handy.
Team POP Secret
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04-11-2014 03:21 AM  5 years ago
Tyler

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Chicagoland area

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Maybe we need to install a fuse/breaker between two members in this thread. HA!

Sorry, guys. I couldn't help myself. Please forgive me.
Enjoy things that money can buy IF you don't lose the things money can't buy.
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04-11-2014 03:40 AM  5 years ago
Ronald Thomas

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Gainesville, Fl, USA

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Bob is always right, I apologize for even posting in this thread, I knew he would bastardize it sooner than later
OP, take a look at your factory setup. It is made for one battery, you now have three. Make your choice from there
BTW if your front battery does, you will never start your car using the rear batteries with an 80 amp CB in line....but of course, the resident expert didn't think of that either....good luck with your setup, I just want you to be safe....Ron
Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!
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04-11-2014 03:49 AM  5 years ago
Tyler

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The main starting battery should never be depleted by the chargers, and there is hopefully isolation. Even if it was drained by some other load a simple set of jumper cables would get the car cranked up easily. Don't we all carry jumper cables?Enjoy things that money can buy IF you don't lose the things money can't buy.
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04-11-2014 03:51 AM  5 years ago
KingJoeMack

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New Baltimore, Mi USA

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There is absolutely no connection between the 12v car battery, and the 2- 24v charging battery setup.

The closest I ever got to that, I had to jump the car with jumper cables off of one battery.
Fly with scheduled ground contact !
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04-11-2014 03:52 AM  5 years ago
Ace Dude

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USA

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Breakers are also known for tripping accidentally.  
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04-11-2014 04:00 AM  5 years ago
Tyler

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Chicagoland area

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The fact that Kingjoe uses a dedicated two bank charger does indeed isolate his hobby batteries from the car in every way.

I believe Ronald missed that point 100%, which makes his position no longer moot.
Enjoy things that money can buy IF you don't lose the things money can't buy.
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04-11-2014 04:02 AM  5 years ago
Tyler

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KingJoe,

How far are you discharging those deep cycles in a typical week? How many flights?

If you never really deep discharge them, the onboard protect charger does not get very stressed with casually topping off the batteries.

My golf cart would put quite a stress on the protect, which is why I believe mine died early. You may find long life with your arrangement.
Enjoy things that money can buy IF you don't lose the things money can't buy.
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04-11-2014 05:07 AM  5 years ago
BobOD

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New York- USA

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This is such a respectable argument.
Just because you are wrong does not mean I am always right. Might serve to remember that.

It's not even a "right" I would say I'm proud of or anything. I mean come on, too simple for that. It simply is wrong to use a 250 amp breaker with 100 amp rated wire to supply a 40 amp expected load. I suggest 80 amps.

As for breaker versus fuse, this isn't right or wrong. Both would work, of course. Simply two different options.

As for using these batteries to jump start the car, sounds like a desperate attempt to prove me wrong. What's up with that.
Here, I would suggest a set of jumper cables...of sufficient gage and length of course.

Funny stuff.
Team POP Secret
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04-11-2014 11:44 AM  5 years ago
Ronald Thomas

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Gainesville, Fl, USA

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It is nice that the batteries are isolated from the car 100% but they are still in the car, you still need protection from the batteries in the car, plain and simple. It really does not matter if they are not connected to the car's charging system, the car still needs to be protected from the batteries. Look at it this way, when you plug a charger into the wall at the house, the circuit breaker protect the HOUSE from whatever is connected to the house…same thing.
As for using these batteries to jump start the car, sounds like a desperate attempt to prove me wrong. What's up with that.
Here, I would suggest a set of jumper cables...of sufficient gage and length of course.
The OP said
The closest I ever got to that, I had to jump the car with jumper cables off of one battery.
That is another advantage of having the extra batteries in the car…like using a lipo to start your car, if they are there, use em if you need them...
Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!
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04-11-2014 01:37 PM  5 years ago
KingJoeMack

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New Baltimore, Mi USA

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On a regular basis, I discharge them to the combined voltage of 20-21 volts.

This year I purchased (2) Icharger 308 Duo's

It has not been uncommon for me to charge (2) 700 size heli's simultaneously (4- 5000 6s packs)

It was too many wires having 4 chargers doing this.

Another advantage of the 308 duo is it has on its home screen, the input voltage.

On the 306b or 3010b, you could scroll to a screen to view this, but now at a glance- I can see the status.

Battery Replacement-
Both batteries for the 24v system power wires on the left side rear.
But on the right side- I have the ability to have 12v charging, low amperage to charge nitro LiFe packs, as well as using a CellPro 4s charger for- Transmitter LiPo's, Lipo's used for fuel pumps, as well as LiPo's installed in my Boom Box (No D size batteries for me).
This battery is the one that gets additional use, so I installed a EC5 plug so I can go from one battery to the other to balance the usage, and keep the life of the Deep Cycle batteries about the same.

Here are some pic's of a simple fuel pump setup that I have been using for 5 years.
These are inexpensive pumps, I keep a spare in the shop ($18.00).
I also have stashed in the truck is a hand crank pump, as a backup.

Fly with scheduled ground contact !
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04-11-2014 01:37 PM  5 years ago
Tyler

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Chicagoland area

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Ronald, Please help me see how the car needs to be protected from the batteries, and your analogy is invalid because the batteries are never in any way, shape, or form ever connected to the car, the car charging system, the car accessories, nothing! Please help me understand. What am I missing here.

Where does the fuse get installed? The batteries would be on one side of the fuse, but what is connected to the other side? Car chassis? If so, why?

I see a 250 amp breaker in your auto, but isn't that battery used BY the car? If so, I understand the protection needs.
Enjoy things that money can buy IF you don't lose the things money can't buy.
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04-11-2014 01:41 PM  5 years ago
KingJoeMack

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New Baltimore, Mi USA

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It's not even a "right" I would say I'm proud of or anything.
I heard this a long time ago and has stuck with me-

No one is always right,
and No one is always wrong.

A simple statement that says so much.
Fly with scheduled ground contact !
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04-11-2014 01:43 PM  5 years ago
Tyler

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Chicagoland area

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King joke, you are right. Kinda! Enjoy things that money can buy IF you don't lose the things money can't buy.
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04-11-2014 02:37 PM  5 years ago
Ace Dude

rrProfessor

USA

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Ronald, Please help me see how the car needs to be protected from the batteries, and your analogy is invalid because the batteries are never in any way, shape, or form ever connected to the car, the car charging system, the car accessories, nothing! Please help me understand. What am I missing here.

Where does the fuse get installed? The batteries would be on one side of the fuse, but what is connected to the other side? Car chassis? If so, why?
It's all about safety. If we follow the happy path nothing appears it can go wrong. However, if there's ever an accidental short somewhere downstream of the batteries it could be very serious situation. Although the risk is small, there's always a chance a short circuit could occur. For example, a sharp object or sharp edge could pierce the wire insulation and cause a short. This is one of the reasons our cars have fuse boxes in the first place.
  
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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › Pic's Up-24v Non-Generator charge system(Deep Cycle),w/Icharger 3010b,Installed System Complete
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