2, 4awg into 2/0 lug - help please.

[42OhmsPA]

Realized the rings on the BMS terminals are to big for my cells.
I'm trying to bring another pack online and charged up before 3 days of rain and shitty weather.

Does this look OK?

I know it was covered somewhere before but I can't find it.

Thank you all.

 

[Brett V]

Is it crimped? I don't have a problem with 2 wires in one lug. I'm doing it on all 4 of my Overkill BMS leads.

 

[42OhmsPA]

No I didn't crimp yet.
It seems like it will be fine but I wanted to double check before I use the hydraulics...

 

[Brett V]

No I didn't crimp yet.
It seems like it will be fine but I wanted to double check before I use the hydraulics...

Go for it!

I thought it was just tomorrow and Sunday...ugh.

 

[42OhmsPA]

Go for it!

Thanks for the re assurance.
I was going to stack lugs but can't find my 1/4" 4awg. I feel better with one lug to the main cell negative anyway.

I thought it was just tomorrow and Sunday...ugh.

Supposed to start later tonight up my way and be cloudy through Monday. I'd probably be fine but need to quit procrastinating and get it done anyway. Having to resort to a few bucks from the grid would kill me ?

 

[42OhmsPA]

Might have the parts laying around to make this work too. https://diysolarforum.com/threads/two-cables-crimped-in-one-lug.45318/post-732656
Thanks for the idea @Skypower .

 

[42OhmsPA]

Worked out just fine and dandy and passed my pull test.
I tend to over think things.

 

[glandpuck]

A properly crimped lug results in a cold fusion weld of the lug to the wires so no areas of resistance are present. Resistance creates hot spots and the potential for melting insulation and fire even. My advice since this is a long term install is to use the proper size crimp die for your lug and wire and do it right and do it once. Your other option is to fill completely with solder. You will have to heat the lug and wire properly so solder flows into all the spaces. probably will need a torch to achieve this result.

 

[42OhmsPA]

A properly crimped lug results in a cold fusion weld of the lug to the wires so no areas of resistance are present. Resistance creates hot spots and the potential for melting insulation and fire even. My advice since this is a long term install is to use the proper size crimp die for your lug and wire and do it right and do it once. Your other option is to fill completely with solder. You will have to heat the lug and wire properly so solder flows into all the spaces. probably will need a torch to achieve this result.

Thanks for the advice.
I'll keep and eye on it with the FLIR. It seems solid. I have no plans to solder it, I've soldered lugs for 12v connections before (battery relocation) and much prefer a crimped connection.

 

[Nobodybusiness]

Worked out just fine and dandy and passed my pull test.
I tend to over think things.

I do this on all my JK lugs.
Works so far..

 

[Brett V]

Worked out just fine and dandy and passed my pull test.
I tend to over think things.

ahem......

 

[42OhmsPA]

ahem......

Shhhhhh ? it was that or fork terminals.

 

[Brett V]

Just busting on you dude! You could have just stripped some wire and wrapped it around the battery post