Connectors for a battery box

[wookie1965]

I made a battery box a couple of years back and put two cigarette lighter sockets in but they are not that stable so I would like to swap them. My mount being tip positive I'd like to know what to get and how to wire them up please so I don't fry the board. Would like screw connectors makes for a better connection. 

[fozzybear]

replace the cigarette  connectors with these

https://www.amazon.co.uk/Aviation-Connector-Circular-Chassis-Waterproof/dp/B07SLB9VZN/ref=sr_1_1_sspa?dchild=1&keywords=gx12+2+pin+connector&qid=1600808155&quartzVehicle=72-1783&replacementKeywords=gx12+pin+connector&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyM0w0VDc3SVpBMzhaJmVuY3J5cHRlZElkPUEwNjU3MTk5M0hGWUxWSkk5SFdZMiZlbmNyeXB0ZWRBZElkPUEwOTU0NjM5MzZMVkc1V01DSDUzNCZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

[wormix]

Timely as I am building a power box in the next week so had the same question

3 minutes ago, fozzybear said:

replace the cigarette  connectors with these

https://www.amazon.co.uk/Aviation-Connector-Circular-Chassis-Waterproof/dp/B07SLB9VZN/ref=sr_1_1_sspa?dchild=1&keywords=gx12+2+pin+connector&qid=1600808155&quartzVehicle=72-1783&replacementKeywords=gx12+pin+connector&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyM0w0VDc3SVpBMzhaJmVuY3J5cHRlZElkPUEwNjU3MTk5M0hGWUxWSkk5SFdZMiZlbmNyeXB0ZWRBZElkPUEwOTU0NjM5MzZMVkc1V01DSDUzNCZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

Are these connectors impossible to insert the wrong way round?  I presume there is a lug that means they always go the right way in? 

[Hallingskies]

Thanks.  I have exactly the same dilemma and these connectors look the business.

[fozzybear]

3 minutes ago, wormix said:

Timely as I am building a power box in the next week so had the same question

Are these connectors impossible to insert the wrong way round?  I presume there is a lug that means they always go the right way in? 

yes there is a lug but it is up to you to wire + - correctly at both ends 

[fifeskies]

These are very good connectors , just be very careful to establish the system polarity as there are examples around of both options , even within one manufacturer who uses them as original power connectors. The EQ8 and the newer EQ8R have opposite conventions.

 

But given that caveat , they are very reliable and I can recommend them , they will never disconnect by accident. 

 

 

 

Edited September 22, 2020 by fifeskies

[wookie1965]

I wonder if you can get the pin out interfaces for the EQ5 it would make the installation much easier.

 

[wookie1965]

I am going to use these they seem to be the best option for me.

https://www.amazon.co.uk/dp/B081MWYT6T/ref=cm_sw_em_r_mt_dp_k31AFbENN5F0W

[wormix]

Make sure you have a multimeter and check, then double check that the polarity in your new connectors matches the old and you should be fine. 
 

Im paranoid about wiring mine in but as long as the multimeter matches there won’t be a problem....

[wookie1965]

2 hours ago, wormix said:

Make sure you have a multimeter and check, then double check that the polarity in your new connectors matches the old and you should be fine. 
 

Im paranoid about wiring mine in but as long as the multimeter matches there won’t be a problem....

That's exactly why I will be buying these much easier to make sure I'm tip positive. 

[wookie1965]

Got these stiff to put in and very easy to wire up. 

[wormix]

Just to resurrect a semi-old thread, can anyone please tell me what gauge wire to use for a power distribution box feeding 7no 2.1x5.5mm sockets from a 25amp battery?

 

I always seem to way over spec 

ta

[fozzybear]

depends what you want to supply the 12v to in the distribution box or are we talking the feed from battery to distribution box

Amps
@ 13.8 Volts  LENGTH OF WIRE
American Wire Gauge (AWG)
Amps    0-4 ft. 4-7 ft.  7-10 ft.  10-13 ft.  13-16 ft.  16-19 ft.  19-22 ft.
0-10     16-ga. 16-ga.    14-ga.     14-ga.      12-ga.    10-ga.    10-ga.
10–15    14-ga. 14-ga.    14-ga.     12-ga.      10-ga.     8-ga.     8-ga.
15-20    12-ga. 12-ga.    12-ga.     12-ga.      10-ga.     8-ga.     8-ga.
20-35    12-ga. 10-ga.    10-ga.     10-ga.      10-ga.     8-ga.     8-ga.

 

the above give's you some idea

also have a look at this site for a more detailed info plus a calculator further down the page

https://www.powerstream.com/Wire_Size.htm

Edited October 24, 2020 by fozzybear

[wormix]

Thats a really useful table!  Exactly what I needed as it was both from battery to box, and then split in box to various different outlets

 

cheers