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Tasco OS36 Binoculars battery replacement

The red light in the compass of my Tasco OS36 does not turn on when I push the button on the top of the housing. I am assuming that it needs a new battery but when I unscrew what appears to be the battery compartment on the housing there is a screw shaft on the underside of the "cap" which penetrates the center of a white plastic disc and fastens into the housing underneath this disc. The disc does not appear to be easily removed. I cannot identify any other fitting which would be the battery compartment. How do I get the light to turn on?

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Re: Tasco OS36 Binoculars battery replacement

The screw you removed holds the battery cover in place. The cover is roughly rectangular with rounded corners. Once the screw is out, gently insert a sharp blade into the hairline crack between the cover and the binocular body and pry the cover off. The two watch batteries will be obvious.

Posted on Mar 13, 2009

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Re: Tasco OS36 Binoculars battery replacement

The battery compartment is on the front of the binoculars next to the large lens (objective). It takes 2 batteries + side up as mentioned either
LR 43 or number 186 alkaline or silver oxide number 389 or SR54.
Be careful as there is a small metal clip holding them in place.

You can go to Tascos website and download the intruction manual. It is the same for the OS36 and OS54.

Posted on Aug 01, 2009

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Re: Tasco OS36 Binoculars battery replacement

Install a pair or LR43 batteries with the + sign up.

Posted on Feb 20, 2008

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What type battery goes into the binocular ???

HI require 2 batteries - Alkaline #186/LR43
or Silver Oxide #389/SR54. For further assistance call
800 423 3537


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