===== Touch Port =====

The touch point is made of a brass insert with two insulators, two lugs and a nut. The two lugs are used for the electrical connection to the PCB. These have a specific way around they need to be.\\ {{:tech:baton:readingtp.jpg?direct&200|}}\\
If you read the battery voltage from the Touch Port as a negative, \\
{{:tech:baton:negative.jpg?direct&200|}}\\
the touch port wires are probably the wrong way around. This is also the most comment cause a fault in the baton with wires being broken off after the unit is opened.

=== Dirty touch port ===
If the touch port is dirty or corroded it will not make proper electrical contact. This can be cleaned with a damp cloth or wire brush. The inside of the touch port can also have foreign matter in which would result in a short to the touch port.\\
{{:tech:baton:tp.jpg?direct&200|}}\\
=== Oval Touch port ===
{{:tech:baton:ovaltouchport.jpg?direct&200|}}\\
=== Old spring ===
Older units have springs this is normally removed as part of a service and replaced with wires\\
{{:tech:baton:spring.jpg?direct&200|}}
=== Touch port assembly diagram ===
{{:tech:baton:tpassembly.jpg?direct&200|}}
=== Update July 2014 ===
There have been some improvments to the touch port assembly. The bottom Top hat has been replaced to make the unit more water proof. It has been replaced by a fiber washer, an o-ring and some heatshrink. The fiber washer can also be used as a spacer depending on the casing you have. Add more washers as needed. The Oring forms a better seal than the top hat. The heat shrink to to help prevent shorting. Make sure you do not cut more than 2mm of heatshrink.
{{:tech:baton:newtp.png|}}