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Old 09-08-2011, 08:00 PM   #5
CTScott
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Drives: 09 5dr LB, 2x 08 3dr LB
Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
Quote:
Originally Posted by RedRide View Post
I used a T tap to acces the tach signal from the OBD-II as it is low current and there have been no problems.

Hovever, personally I would feel more comfortable soldering/using a more solid connection if the app was high current draw like a full 12v/higher amp outlet, etc.
Actually it is just the opposite. Mechanical connections are better for high current as solder connections, unless done perfectly will fail over time. On a product that I used to work on, that had a 24 Volt, 100 Amp hour battery pack, we experienced many failures with professionally soldered connections for our battery packs. When we met with the manufacturer of the connectors regarding the failure, they explained that on a properly crimped connection more contact occurs between the wire strands than with a soldered connection, where the solder coating the strands forms a bi-metal junction between strands.
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