New LSH questions...

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nightgaunt

Newly Enlightened
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Apr 28, 2003
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Northern Indiana
Just got my ARC LSH-S and am very happy. Just a few ques...

Is there supposed to be a foam ring with the TSP123? Also, the battery contact on the light body is not exactly "centered". It looks like the circuit board is off a bit, but the beam isn't affected. The + battery terminal does leave a off-centered mark on the contact, though. Is this cause for long term concern?

THanks and its a cool light!
 
Is there supposed to be a foam ring with the TSP123?
Nope.

Also, the battery contact on the light body is not exactly "centered". It looks like the circuit board is off a bit, but the beam isn't affected. The + battery terminal does leave a off-centered mark on the contact, though. Is this cause for long term concern?
Once again, nope. It shouldn't be a problem at all. I suspect that it is supposed to be like this.

Enjoy your new Arc,
Pat /ubbthreads/images/graemlins/smile.gif
 
I just happen to have two LSH-P's with me at work today. one is my EDC and I'm loaning one to a friend so they can test-drive before they purchase one form Arc. The battery contact on one of them seems to be a little off-center, which I never really noticed until now. Doesn't seem to be any problem at all. Light works fine. I do tighten the tail-switch all the way, so I put maximum pressure on the contact. This is not really necessary, you just need to bury the O-ring a bit to ensure the waterproofness.
I don't think there is any problem at all.
 
nightgaunt,

The + terminal of the battery would leave an off-center mark event if the contact were exactly centered in the head, because the battery always ends up slightly tilted in the TSP, unless you wrap tape around it to make it fit very snuggly. There is no reason to do this with a TSP-123, however, and there is absolutely no problem with the battery being slightly off axis and/or off center. No worries at all. Enjoy your Arc.
 
nightgaunt,

Just had a second thought . . .

You do mean the T(ail)S(witch)P(ack), right? The one with the rubber booted Kroll switch, right? And NOT the "twisty" P-123 power pack, right?

If you DO have a twisty, then you should either have a foam ring in the head, or wrap tape around the battery so that it does not rattle from side to side, but only front to back. That's what I do with my twistie; I like the tape solution better than the foam ring.
 
JS is right. The TSP series do not need a foam retainer because they have a spring. The spring is a better solution in my opinion because it has a longer range of travel.

Also, the off center wear marks on the contact are caused by a necessity. If the battery compartment was so tight that it held the cell completely rigid; thermal expansion, different battery brands, heavy discharge, etc would result in a stuck battery. Not a good thing. So there is some allowance in the battery compartment which allows the cells to swivel slightly.

And don't worry about the long term wear of that button. It is pretty thick. These are same buttons used in 2-way radio battery packs. If you ever managed to wear the button down to the PCB, we will solder a new one on for you. It hasn't happened yet though. /ubbthreads/images/graemlins/smile.gif

We picked buttons made of cobalt gold ("hard gold"). This is to provide a soft enough contact to provide multiple contact points to the battery (lowering resistance as a result) and hard enough to last a lifetime of use.

Peter
 
Wow...thanks for all the super answers. I should have looked at the ARC FAQ first, because the pics helped alot, and the one shown has the board kinda off-centered also. I guess I never realized how much R&D (and $$!) went into the lights!!
*Homer voice* MMMMM...cobalt gold contact...*gurgle*

Thanks for a far-superior light!
 
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