Bay Marine Supply - Battery Chargers, Inverters, Refrigerators and Icemakers, and Wiring Supplies for Boats, RVs, and Off-Grid Applications.

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    Anywhere in the lower 48, except oversize items

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We will be on holiday from December 18th to January 3rd. Most orders will be fulfilled as usual, but special orders may take a few extra days. While our shipping department will be available to assist you with orders, tech support will be via email only, with a 2 or 3 day turnaround. Happy Holidays, and thank you for your business throughout the year!


Check out or new system kits
(Or we'll create one for you)

Wire size calculator

Easy wire size calculator

Converting VA To Watts

Bay Marine Supply
3235 Hancock St # 12 San Diego, VA CA 92110
Phone: 619-320-5899