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Details about  SDU-5/E BA-1574 Distress Strobe Light Batt Adapter 5BA

SDU-5/E BA-1574 Distress Strobe Light Batt Adapter 5BA
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Item Information

Item condition:
New
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More than 10 available / 227 sold
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Price:
US $13.50
Approximately C $15.19(including shipping)
 
85 watching
 
100% positive feedback
30-day returns
227 sold
Shipping:
US $9.55 (approx. C $10.75) USPS First Class Mail Intl / First Class Package Intl Service | See details
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Item location:
Ukiah, California, United States
 
Ships to:
United States and many other countries | See details
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Payments:
International shipping and import charges paid to Pitney Bowes Inc. Learn More- opens in a new window or tab
Returns:
30 day money back or item exchange, buyer pays return shipping See details
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eBay item number:
231167290052
Seller assumes all responsibility for this listing.

Item specifics

Condition:
New: A brand-new, unused, unopened, undamaged item (including handmade items). See the seller's listing ... Read moreabout the condition
Country of Manufacture: United States
New: Made in Ukiah, California, USA

SDU-5/E Battery Adapter   5BA

© Brooke Clarke, N6GCE 2000 - 2007
Engraved Top

Stands on Cap

General Information

This 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

It turns out that the adapter allows the SDU-5E to stand on it's end without any batteries, the BA-1574/U is shorter and the SDU-5/E falls over.  When batteries are installed it will stand on just the cap.

Positive end of Lithium battery goes to the cap.    Tested with either Duracell or Radio Shack 123 batteries. 2 each Duracell DL123A or CR123.  You can use a pair of any of the 123 photo batteries, but do not use the new rechargable type because their shelf life is very short.  The rechargable batteries should be OK for use in a disco situation where you're not concerned about shrlf life.

Threads Notice

23 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

BA-1574 Gap
5BA Gap
Less than 1% of the time an SDU-5/E is made with a defective female battery thread that will cause the battery to make contact before the O-ring.  If you install the BA-1574/U or BA-5374/U in these units the O-ring will not seat properly.   If this happens to you let me know and I will send you a part to fix it (no charge).

Not Tested

I 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 Life

The 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.

The booklet in the bottom of the BT-2B battery tester shows the effect of cold on Mercury batteries.  At 80 deg F and a meter reading of 1.0 there are 9 hours operation in the battery, but at 32 deg F there is only 30 minutes of operation.  The LiMnO2 battery looses only about 10% capacity at 32 deg F.  Note the BT-2B tester is obsolete since all the batteries it was made for are Mercury types and the replacemsnts are different chemistry and can not be easily tested.

Some Sources for Batteries

The 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

As of 12 April 2004 Engraved  adapters are the only ones available. 


Mercury Battery Warning

The above unit originally used BA-1574/U or 4RM1B Mercury based batteries.  Mercury is one of the heavy metals that has been found to be bad for humans. (Lead wine containers may have caused the end of the Roman empire?)  Any military battery whose model number is BA-1001 to BA-1999 is a Mercury battery.  These should be kept in Zip-Lock bags and disposed of in accordance with hazardous materials regulations.  If any crystals form on the battery they should be considered as poison.

Buyer to pay shipping and handling.
PayPal is OK.
I make these in the U.S.A.

Shipping FOB

First class mail is FOB Ukiah, California.  Priority mail is FOB your ship to address.

See About Me for background information on Brooke Clarke, N6GCE.

On Apr-03-02 at 22:52:03 PST, seller added the following information:

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Questions and answers about this item

Q: it shows that you have been paid for my item, when can I expect it in the mail? Paul
A: Hi: The information I get from PayPal does not include your eBay handle, so in order to answer any question I need you ship to name and date of purchase. Then I can tell you the tracking number. You should have received an... Continue reading
Oct 18, 2014




Seller assumes all responsibility for this listing.

Shipping and handling

Item location: Ukiah, California, United States
Shipping to: Worldwide
Domestic handling time
Will usually ship within 1 business day of receiving cleared payment - opens in a new window or tab.

Return policy

Item must be returned within
Refund will be given as
30 days after the buyer receives it
Money back or item exchange (buyer's choice)
The buyer is responsible for return shipping costs.
Return policy details
Satifaction or your money back.

Payment details

Payment method Preferred/Accepted  
Credit card or Pre-authorized Debit through PayPal
Accepted
 

Seller's payment instructions

U.S. military addresses same as U.S. address. I pay CA sales tax if you are in California.
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