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Due to the ongoing global health crisis, Bay Marine Supply personnel are working remotely for the foreseeable future, but we are still operational! In-store transactions or consultations are NOT AVAILABLE at this time, but orders may still be placed for will-call pickup by entering coupon code localpickup during checkout. If you place an order for will-call pickup, our S/R specialists will call you when your order has been pulled and is ready. PLEASE DO NOT come to will-call before you have received a call indicating that your order is ready.

Will-call pickup is at the rear of the warehouse; masks are required at all times and hand sanitizer will be available at the pickup desk to help ensure the safety of your families and ours.

Orders of in-stock items placed before 12 noon Pacific will usually ship or be available for pickup same-day; orders placed after 12 noon will usually ship or be available next-business-day. Please note that, as global manufacturing has slowed due to the pandemic while at the same time demand has skyrocketed, item availability is subject to rapid change. If an item you order is out of stock, we will contact you to let you know and offer -if we have it- the projected lead time for restocking.

Thank you for your patience and understanding through these trying times, and we wish you and your families fortune and health!


Magnum Energy

Why buy from us? Why?

All Magnum Energy products are manufactured at their headquarters in Everett, Washington. The company was founded in 2002 by a number of engineers from Heart and Trace, the companies that started the high-end mobile inverter market.

Magnum Energy makes both pure sine wave and modified sine wave inverter-chargers, though the pure sine models are far more popular. The Magnum MS2012 (2000 watt inverter / 100 amp charger) and MS2812 (2800 watt inverter / 125 amp charger) models provide pure sine power sized right for most boats and RVs. New to the linup are the MSH3012M and MSH4024M hybrid inverters, which will supplement incoming shore or generator power with inverter power for peak loads. These are turning out to be very popular.

For renewable energy use, the Magnum MS4024PAE and MS4448PAE are workhorses that not only have high output, but are stackable and provide 110/240 VAC split phase output, excellent for powering well pumps. These are the premier inverter-chargers for off-grid applications.

For most applications, we recommend using one of the Magnum remotes and a BMK battery monitor kit, for excellent monitoring of both battery and inverter-charger status.

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