SDU-5/E Battery Adapter 5BA
General InformationThis is a cap designed to fit the SDU-5/E Distress Marker Light and allows the use of readily available type 123 commercial photo batteries. Photo installed on SDU-5/E Strobe Threads Notice23 May 2007 -About 1 in 1,000 SDU-5s have threads that are undersized. This happens when the tap used to make the strobe gets worn out. To check the threads in the strobe I now have a certified Go-NoGo plug gauge (shown at left laying on it's Calibration Certificate) and in case the threads need to be chased I also have the needed bottom tap. If you buy my adapter and find that your strobe has defective threads I will clean them up for the current cost of postage. This applies to all past customers just send me the strobe and the cap. If you have tight threads contact me. O-Ring Notice
Not TestedI have not tried to certify this adapter to any specifications or get any approvals for it. I know of no problems but, if you use it for life saving applications you do so at your own risk. Battery LifeThe LiMnO2 DL123A is rated at 1.4 AH with a 100 Ohm load., The SDU-5/E pulls about 100 mA (12V/100 mA = 120 Ohms) so might last 14 hours. The BA-1574/U is rated for only 9 Hours at 80 deg F, so this adapter may offer over 50% more capacity. Some Sources for BatteriesThe 123 type of photo battery is sold in camera and drug stores and most supermarkets as well as on the internet. They typically are blister packed in either singles or doubles (two are required for this application). Shop them as the price varies a lot. Last I heard Streamlite had a good deal on a box of 12. If you have access to military supplies your local PX probably stocks the BA-5123 batteries for the Streamlite flashlights. New Version 2
Mercury Battery Warning
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On Apr-03-02 at 22:52:03 PST, seller added the following information: This is a new eBay selling format that allows you to "Buy Now" and I get to list multiple items. | ||||||||||