Sick of poor quality Electrical connectors

Submitted: Wednesday, Jun 13, 2007 at 09:15
ThreadID: 46605 Views:4259 Replies:9 FollowUps:28
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We have recently done another trip up North and before leaving have added another battery to our Vehicle as the Waeco 80 Liter fridge seems to chew alot of power. We noticed this time that most of the power loss must be through the poor quality cigarette type of 10 & 20 Amp connectors. We are now looking at throwing away these connectors and replacing them with something more serious. Does anyone have any suggestions as to what would be better
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Reply By: Member - Beatit (QLD) - Wednesday, Jun 13, 2007 at 09:35

Wednesday, Jun 13, 2007 at 09:35
G'day,

Try hard wiring. Like you I got sick of these connectors and finding the fridge off. Bought another cable, so that I would have the correct plug to fit the fridge and hardwired it to the battery via a fuse off course. No more problems.

Kind regards
AnswerID: 246518

Follow Up By: A Tata-Downunder - Wednesday, Jun 13, 2007 at 10:52

Wednesday, Jun 13, 2007 at 10:52
Thank's Beatit,
I ended up having to do that while on the road, will get good connectors for all the other electrical stuff

Cheers

Roland
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FollowupID: 507361

Reply By: sdr00y - Wednesday, Jun 13, 2007 at 09:42

Wednesday, Jun 13, 2007 at 09:42
Use ABR which can be found if you search abr in the directory section of this site.

Derek will sort you out with anderson plugs and wire to suit your needs.

Have used his stuff before and he has excellent customer service and advice.

cheers
sdr00y
SD

Lifetime Member
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AnswerID: 246519

Follow Up By: A Tata-Downunder - Wednesday, Jun 13, 2007 at 11:02

Wednesday, Jun 13, 2007 at 11:02
Thank's sdr00y
I have just sent them an e-mail
Cheers
Roland
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FollowupID: 507363

Reply By: Member - Phil G (SA) - Wednesday, Jun 13, 2007 at 09:50

Wednesday, Jun 13, 2007 at 09:50
I have heaps of connectors in my truck, I've used Deans Ultra Plugs for the past 10 years. They are compact in-line connectors made for low voltage, high amp remote control car and plane use - have nicely sprung connectors, and will never come apart in the rough stuff. The terminals are gold plated and flat. Get them from good hobby shops or Model Flight.

AnswerID: 246521

Follow Up By: baza - Wednesday, Jun 13, 2007 at 10:02

Wednesday, Jun 13, 2007 at 10:02
I'll second that, I use them in my planes and 4x4. I get them from Japan though, cheaper unit price and delivery. Not sure why it's cheaper to deliver from Japan than Adelaide!!(usd2.50) aircraft-world.com/shopexd.asp?id=1740
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Follow Up By: Vince NSW - Wednesday, Jun 13, 2007 at 10:58

Wednesday, Jun 13, 2007 at 10:58
Phil
I know this has been asked before, BUT, what is the convention for the + & - with these3 plugs ? I got so many different answers that I went to anderson plugs as for us dummies they are marked
Vince
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FollowupID: 507362

Follow Up By: Robin Miller - Wednesday, Jun 13, 2007 at 11:04

Wednesday, Jun 13, 2007 at 11:04
Those plugs look cute - haven't seen them before.

They look like caravan plugs.

My guess is that positive would be one that is at right angles to the longest side of plug.

Robin Miller

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FollowupID: 507364

Follow Up By: TH - Wednesday, Jun 13, 2007 at 12:54

Wednesday, Jun 13, 2007 at 12:54
Phil G
Do you have to solder the deans plug connection?
If so isn't it liable to come apart. If you don't solder how do you connect it?
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FollowupID: 507385

Follow Up By: Member - Phil G (SA) - Wednesday, Jun 13, 2007 at 13:32

Wednesday, Jun 13, 2007 at 13:32
Vince, Robin's correct. The top part of the "T" is pos. They tell you that with the instructions. And the female connector comes from the power source, the male on the fridge, light, inverter or whatever.

TH, yes, your only option is to solder the wires on. I solder up to 8Ga wire onto the terminals and protect the joints with heat shrink. If you solder correctly, then you have a strong joint, which won't come apart. I sit the connector in a vice, and have the two bits plugged together, so the other one acts as a heat sink. I pre-tin the terminal, pre-tin the wire then melt the two together. Need a nice hot solder iron for a short period of time - Mine is an 60watt set at 400degrees.

they retail at $7.95 a set from Model Flight, but they also sell Chinese copies for $3.95 a set. I'd buy the genuine Deans from the USA, have plastic thats not quite as good.
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Follow Up By: Member - Phil G (SA) - Wednesday, Jun 13, 2007 at 13:34

Wednesday, Jun 13, 2007 at 13:34
whoops, last line says the plastic on the Cheap Chinese copies is not as good.
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FollowupID: 507390

Reply By: Rocky_QLD - Wednesday, Jun 13, 2007 at 09:59

Wednesday, Jun 13, 2007 at 09:59
The Hella type plugs and sockets are the go, positive connection and ample current carrying capacity.

Regards
Rocky
AnswerID: 246522

Follow Up By: Mainey (WA) - Wednesday, Jun 13, 2007 at 13:32

Wednesday, Jun 13, 2007 at 13:32
Yes, Hella low voltage plugs and sockets would be the way to go, positive connection with ample current carrying capacity.

Simple, effective, very easy to connect & wire up and even low cost.
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FollowupID: 507388

Reply By: Robin Miller - Wednesday, Jun 13, 2007 at 11:01

Wednesday, Jun 13, 2007 at 11:01
Hi Tata

The standard Waeco lead with cig lighter plug has a removeable red plastic end , and when this is off the plug becomes a Merit plug and fits standard Merit plugs and sockets with a better connection.

Available at Jaycar and many other places

E.G. Matching socket with cover is Jaycar part PS 2096 @ $5.95

Robin Miller

AnswerID: 246535

Reply By: Pomgonewalkabout - Wednesday, Jun 13, 2007 at 14:32

Wednesday, Jun 13, 2007 at 14:32
I use a clipsal 32volt plug and socket for my fridge connection.
They are similar to a standard househlod plug, only there is no earth.
They too are very solid and make a reliable connection.

No soldering or crimping required either

cheers
AnswerID: 246576

Follow Up By: kiwicol - Wednesday, Jun 13, 2007 at 16:13

Wednesday, Jun 13, 2007 at 16:13
I to use the house hold looking plug has only 2 prongs one for power and the other for earth direct 2 battery. The minium size cable to use for the distance from the battery to back of vehicle is 6mm, any thing over 6mtrs and you start to loose amps, which then uses excessive battery power.
If you ever get the chance pull the dash apart and have a look at the size of the wire running to the cigerette lighter, you will be suprised,most are only 1-2 mm, no where near heavy enough to run a fridge. Its no wonder so many people have fridge problems using this sort of power supply. Col
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FollowupID: 507401

Reply By: Mike Harding - Wednesday, Jun 13, 2007 at 16:48

Wednesday, Jun 13, 2007 at 16:48
After much investigation I standardised on Cannon 3 pin connectors a few years ago.

Site Link

Jaycar PP1012 is one of the series.

They are available in every gender and mounting configuration.
They are rated for 16 amps but would carry at least 20A under most circumstances.
They are cheap.
They are readily available.
They are easy to connect, tough and polarity proof.

Mike Harding
AnswerID: 246595

Follow Up By: Robin Miller - Wednesday, Jun 13, 2007 at 21:08

Wednesday, Jun 13, 2007 at 21:08
Hey Mike

Can you actually terminate them ? I know people who could seriously use such skills on a production line.

Robin Miller
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FollowupID: 507458

Follow Up By: Mike Harding - Wednesday, Jun 13, 2007 at 21:12

Wednesday, Jun 13, 2007 at 21:12
I would have thought a 5 year old with poor soldering skills could have terminated them!?

Mike Harding

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FollowupID: 507460

Follow Up By: Robin Miller - Wednesday, Jun 13, 2007 at 21:32

Wednesday, Jun 13, 2007 at 21:32
Yeah But its illegal to employ people with such talent whilst still so young !

Robin Miller
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FollowupID: 507470

Follow Up By: Pomgonewalkabout - Wednesday, Jun 13, 2007 at 23:22

Wednesday, Jun 13, 2007 at 23:22
Cannon Plugs
I'm sure that they work fine, they are actually professional audio plugs and sockets.
Same as I have used 3 pin mic plugs and sockets for my CB and GPS power outlet

cheers
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FollowupID: 507493

Reply By: Member-Granpa Joe - Wednesday, Jun 13, 2007 at 17:45

Wednesday, Jun 13, 2007 at 17:45
I have been using these for years without any problems:

Site Link

Site Link

They are easily sourced from good auto shops or auto electricians.
AnswerID: 246605

Follow Up By: Robin Miller - Wednesday, Jun 13, 2007 at 21:10

Wednesday, Jun 13, 2007 at 21:10
Hi Granpa

They are called Merit plugs - also from Jaycar etc

Robin Miller
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FollowupID: 507459

Reply By: Member - craig W (VIC) - Wednesday, Jun 13, 2007 at 19:23

Wednesday, Jun 13, 2007 at 19:23
Gday,
l just use anderson plugs never come undone and you can use
6mm wire they work fine on fridge in back of car and in the off
road camper.
Craig
AnswerID: 246636

Follow Up By: Ray Bates - Thursday, Jun 14, 2007 at 08:35

Thursday, Jun 14, 2007 at 08:35
Same here. I have standardized on Anderson plugs throughout
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FollowupID: 507518

Follow Up By: Member - Mike DID - Thursday, Jun 14, 2007 at 20:23

Thursday, Jun 14, 2007 at 20:23
The advantage of every traveller standardising on the one type of plug means that you can swap gear between vehicles in an emergency - without blowing things up from reverse polarity connection.

Currently there are a lot of "standards" in use.

Hopefully the Anderson Powerpoles (Red+Black) and SB Connectors (Grey) will become the standard - genderless connectors (same plug and socket) and silver-plated connectors are fantastic.
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FollowupID: 507661

Follow Up By: Member - Phil G (SA) - Thursday, Jun 14, 2007 at 20:35

Thursday, Jun 14, 2007 at 20:35
Hi Mike,
As I guess you know, the Anderson Powerpoles have been around a long time - they were commonly used in the R/C cars before Deans Ultraplugs came on the scene (about 15 years ago), but the Deans stuff had less resistance (when pushing through 100+amps) and people stopped using the powerpoles. Naturally both are a good product, and, like you say the powerpoles are genderless.

Can't see anything become standardised in the back of our trucks - theres too many options there that can easily carry 10 amps.

Cheers
phil
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FollowupID: 507668

Follow Up By: Mike Harding - Thursday, Jun 14, 2007 at 20:39

Thursday, Jun 14, 2007 at 20:39
I don't think the Anderson connectors have a chassis mount unit, do they?

Mike Harding
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FollowupID: 507671

Follow Up By: Member - Phil G (SA) - Thursday, Jun 14, 2007 at 20:46

Thursday, Jun 14, 2007 at 20:46
Mike h,
Cut and Paste this:
http://www.powerwerx.com/product.asp?ProdID=1784&CtgID=1681

Sorry I couldn't make the link work.
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FollowupID: 507679

Follow Up By: Member - Mike DID - Thursday, Jun 14, 2007 at 20:47

Thursday, Jun 14, 2007 at 20:47
I don't know how they had a problem with contact resistance - the 30 Amp Powerpole has a Contact resistance of 0.6 milliohm - maybe they were testing from a battery that was only 70% charged by the Alternator.

You can get mounting plates that allow panel mounting. I just nible or file a slot.
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FollowupID: 507680

Follow Up By: Member - Phil G (SA) - Thursday, Jun 14, 2007 at 20:47

Thursday, Jun 14, 2007 at 20:47
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Follow Up By: Member - Mike DID - Thursday, Jun 14, 2007 at 20:50

Thursday, Jun 14, 2007 at 20:50
Bloody mind readers !!!!

I was about to post a link to the Two-way Panel Connector and I see Phils added the Four-way !
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FollowupID: 507683

Follow Up By: Member - Mike DID - Thursday, Jun 14, 2007 at 20:54

Thursday, Jun 14, 2007 at 20:54
As an example of the versatility of the genderless connector, I have a 13.8 volt power supply I use to either connect loads directly to it or to connect it to a battery to float charge it.

No special cables are needed - and the "charger" connector doesn't have any bare metal that can be shorted out.
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FollowupID: 507684

Follow Up By: Member - Phil G (SA) - Thursday, Jun 14, 2007 at 20:57

Thursday, Jun 14, 2007 at 20:57
Mike R,
Don't have alternators in R/C (remote control) 1/10th scale cars :-)))
The R/C car guys will draw 100-150 amps at times through small connectors, so low resistance means more acceleration, which helps win races. Most will solder their battery packs in every race, just to gain a small advantage. And if tehy use any sort of plugs, they want ones that won't come apart.

I used to run a regulated 30amps through connectors and measure millivolt drop across the connectors to see what was best. All interesting and good fun, and while it matters in that sort of competition, its pretty irrelevant when running a fridge in the back of a truck.
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FollowupID: 507686

Follow Up By: Member - Mike DID - Thursday, Jun 14, 2007 at 21:04

Thursday, Jun 14, 2007 at 21:04
At 100 amps peak the Powerpole will have a drop of 0.06 volt. Whoever tested it and had higher resistance must have got flux or solder on the contact surface or didn't solder/crimp it correctly.

Andersons have very definite detent - I see nothing on the Dean to provide a detent. When people use the 50 125 amp for trailer connections they don't use lock - the detent is adequate.
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FollowupID: 507688

Follow Up By: Member - Phil G (SA) - Thursday, Jun 14, 2007 at 21:11

Thursday, Jun 14, 2007 at 21:11
"As an example of the versatility of the genderless connector"......

Hehehe I do the same - 13.8 power supply etc etc, and I agree wholeheartedly about the benefit of the genderless connector. But I bought a heap of the Deans some years ago, and everything in my truck has them - fridges, lights, voltmeters, ammeters, low voltage cutout........... so too late to change, and I trust the Deans 100% to not come apart on the corrugations - maybe 99% for the powerpoles :-)))

But I can't see anything getting standardised - too many good alternatives out there.
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FollowupID: 507691

Follow Up By: Member - Phil G (SA) - Thursday, Jun 14, 2007 at 21:13

Thursday, Jun 14, 2007 at 21:13
Mike,
The resistance is on paper when new. Resistance of a used connector is greater.

Yep, theres no detent - deliberately - so its flat surface to flat surface. But the spring makes them tighter than the powerpoles to pull apart.
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FollowupID: 507692

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