Brand new , non-rechargable, impossible to get BA-5374/u battery that is still in it's original bag. This is for distress marker light SDU-5/E. MFD date is DEC 01, Inspection/Test Date is DEC 06. Any questions please ask. 12 01A is stamped on the side of the battery. $5.00 each, if you buy 10 I'll pick-up shipping. IM me if interested. Thanks.