>Butt splice or solder to repair broken wires?

If you use splices, use a proper ratchet crimp tool=20

>If butt splice, tin wires first?

Absolutely not - solder is too soft

>If butt splice, treat wires with "conductive paste to reduce/prevent oxida=
tion"?

No - the whole point of a crimp is it's airtight. Use heatshrink splices if=
 it might get wet

--=20
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