Question about Leupold Wind River RB800C Rangefinder

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Even on a fresh battery the low battery indicator is on

My leupold wind river rangefinding binoculars can only be used a few times before the battery is completely expired

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  • Anonymous Jan 08, 2009

    mine wont even turn on anymore.

  • Montana_Don Jan 12, 2009

    I have a RB800 with the data code of June 2005. It also gives a low battery indication and refuses to operate shortly after installing a new battery. This problem seems to be a lot worse when it is used in cool or cold weather.

  • btbrink Feb 18, 2009

    Mine won't turn on anymore either. Anyone seen the manual that might be able to troubleshoot this.

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The cpu board has failed or is failing. To be specific......a capacitor on the board has failed allowing current to flow when the unit is not in use. I see a new cpu board in your future or new rangefinder.

Posted on Apr 11, 2009

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I experienced exactly this problem. I have now solved it completely by removing the nasty thin steel battery spring in the cap of the battery housing, and soldering in place a much thicker, gold plated spring which I removed from a no longer needed, low power but well constructed LED Lenser torch. That was two months ago, and my CR123 is still showing full power, whereas before I would have been on probably the second or third battery by now. I feel sure that the old spring, which was as I say very thin and bendy, was creating a short circuit when the cap was put on over the battery. The new spring is clearly doing the job, and half an hour's work has saved me the fortune I was thinking of paying for a replacement pair.

Posted on Jul 02, 2012

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I struggled to work out what was going on with mine (I had the same problem) and concluded that it was either an issue with the electronics, which was beyond my skills to fix, or something much simpler. We all tend to assume the more complicated answer, so I focused on the very thin and nasty spring inside the battery housing cap. I wondered if that spring was deforming in some way and causing a short circuit. So a couple of months ago I unscrewed the two tiny retaining screws that hold the plate on which the spring sits, took the plate out, removed the spring, and replaced it with a much thicker, gold plated spring taken from a small flashlight I no longer had a use for. I soldered the spring into location on the plate, returned the plate to the battery housing cap, and inserted a new battery. Two months later, the battery is still showing full power.

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Leupold rangefinder binocular RB800 or RB800C: Sell it to me. I will buy it.
oldwatch1@gmail.com

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1 Answer

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