Novatac EDC 85P Issue

Packet-Storm

Newly Enlightened
Joined
Oct 8, 2008
Messages
46
I'm having a strange battery drain issue on my Novatac EDC 85P. Need your input on how to further troubleshoot and how to proceed.

I've seen this issue with many differnet types of batteries:

AW Li-ion Recarchable 750mAh
Duracell Lithium non-Rechargable
Battery Station Lithium CR123A
Offbrand Lithium CR123A

The batteries are being drained while the light is off. This problem can be prevented if I unscrew the light and disconnect the flow of electricity to the head (LED module portion - don't know if I have the proper terminology).

Current Ligt Programming:

Primary (one click) = Level 2 (.12lumens)
Secondary (two clicks) = Level 12 (5.3 lumens)
Minimum (three clicks) = Level 17 (21 lumens)
Max (click hold) = Level 21 (85lumens or max brightness)

Problem Last Night
Here is what happened last night. My light is programmed as above and I put in a freshly charged AW battery. It had 4.1volts when I tested it on my multimeter. I used the light on a low setting two times for about 3 minutes total. The battery was put in at 10pm. Then I used the ligth once for about 1 minute at 10pm on Secondary (5 lumens). Later during the night I used the light at 3am for about 1 minute on Primary (.12 lumens). The light was sitting on my night stand for the rest of the night in the off position. The light was fully screwed together, but the single click was used to stop the output of the light.

I tried the light at 7:30am and it would not turn on. When I unscrewed the cap and screwed it back together it flashed a few times (I want to say three blinks but don't remember exactly). It would still not turn on (though the blinks were pretty bright I would say about 15 lumens. I put the battery on the meter and it had 3.65volts.

I've kept the same battery in the light for 3.5 hours longer. It has been off, as there is not enough power to light up and the battery is now at .3 volts.

Problem Summary:
This problem that occurred last night has happened on different batteries over the past 4 nights. I have been able to successfully carry the light all day long and use it quite extensively as long as I give the head a half twist to disconnect the battery inside the tube. This leads me to belive there is some sort of circuitry error in the head.

I've sent off an email to Novatac, but am curious if others have seen this issue. I must say this is a great light for draining every last ounce of juice out of the battery.
 
I did some more tests and found that the battery was being drained when the light was off. I sent the light back to Novatac and their tech's put it through some tests and found something was bad in the LED module.

They are replacing the parts and sending me out a refreshed light tomorrow. I just shipped it out to them with a brief letter and they are getting me hooked up. Gotta love the warranty and support from Novatac!
 
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