Renewable Energy Questions/Discussion > Renewable Energy Q&A

What kind of hardware for battery connections ?

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Wolvenar:
I use copper with a spray on corrosion resistant product. This stuff sprays on like a purple gel
and is stays wet and sticky. Its a nasty staining mess though when you need to work on things.
Tom, I like the idea of possibly tinning the copper, does it seem to help?

tomw:
Wolv;

I think it just keeps the copper from going green and I think the tinning is more compatible with more metals than copper?

Not sure but never see any crud on them and they were all clean of corrosion when I disassembled it to move the cells inside.

These are sealed batteries with lead posts so it mates to those perfect. Not sure but the "tinning" may be lead it is very soft.

Tom

WooferHound:
When I got my two new T-105 batteries, they gave me a jumper to go between them that looks like aluminum terminals crimped on there. I added a mystery washer from my hardware stash and used the nuts that came with the battery to hold it all down. For the connections to the outside world, I used some Side-Terminal lugs from the auto store. These aren't exactly made to do the connection on a T-105 but it works. There is a deep depression on the lug that the battery's nut would screw down into, So I put another mystery washer into that pit so the nut would not mess up the lead when it's all being wrenched down.

I just got concerned that these mystery washers might cause problems with corrosion. Everything else should be fine.

Wolvenar:
Just a thought, information on the galvanic series may be beneficial to place up somewhere here

rossw:

--- Quote from: bj on January 10, 2012, 06:05:42 am ---   Hey Woof--pretty much the same as A of J, but I solder after crimping, and cover with the glue type heat
shrink.  Clean, bolt it up, and give it a coating of silicone grease.  Seems to keep corrosion at bay.

--- End quote ---

Thanks for reminding me. I posted the interconnects, but not the cables.

I used 1200-strand superflex cable and the correct crimp lugs, and heatshrink.

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