Free shipping on orders over $150. Learn more
Returns are accepted within 30 days after shipment. To be eligible for a return, items must be unused, uninstalled, and in their original packaging, and proof of purchase is required. The following items are not eligible for return: Installed or used products, clearance or final-sale items, trolling motors, programmed AIS units, KVH Starlink products that are registered or opened, special-order products, or products displaying the notice “This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.” in their description. Opened or unsealed DVDs, CDs, or cartography (unless defective) are not eligible for return. Return Merchandise Authorization (RMA) numbers are required for all returns. Learn more.
Egret Marine ships marine parts and accessories within the contiguous United States only. Orders are typically processed same day if placed before 3pm CST, excluding weekends and holidays. Learn more.
Mac Plus 12/24-30 + CZone
Boost the Service Battery
Too often, service batteries don’t get the charge they need. This is a problem made worse by smart alternators and start/stop systems, which result in slow and insufficient charges. The Mac Plus DC-DC charger solves this problem, providing a quick, safe, and consistent charge to the service battery. And, by knowing when the engine is running and providing charge, users can be sure that the Mac Plus will never drain a starter battery.
Proven Mastervolt Quality
Users get peace of mind knowing that they have the best on board. Using the proven Mastervolt 3-step+ charge algorithm, the Mac Plus delivers a quick and easy charge, even for completely flat batteries.
A robust design holds up in even the harshest conditions, with battery temperature-optimized charging and a high-quality aluminum housing to ensure superior protection against dust and water ingress. The power-efficient design also allows the Mac Plus to operate silently and without a fan.
Total Power Flexibility
With a wide DC input range, the Mac Plus allows for all DC sources and can charge two batteries from a single alternator or charger. It supports a full range of chemistries and battery types, including lithium. It also functions seamlessly with modern alternators such as Euro 5 and 6, ensuring proper charging by providing constant power, even when the alternator is inactive.
Parallel configuration of up to ten units will provide over 100 amperes. Advanced high-frequency technology with modern microprocessors ensures minimal power loss when switching from 12V to 24V and vice versa.
Analog voltage sense ports are also available to compensate for voltage drops and maintain proper charging.
Superior Monitoring & Control
Compatibility with CZone®, NMEA 2000®, and MasterBus delivers truly superior monitoring and control and ensures Mac Plus integrates easily into complete systems. Achieve the best performance possible via various controllers and high-quality MOSFETs. And configure the Mac Plus with ease via MasterAdjust, the CZone configuration tool, or even via the on-board DIP switches.
Features:
Specifications:
Technical Specifications:
Specifications:
The Pflueger Supreme XT is Pflueger's flagship spinning reel — built with a magnesium body, carbon drag, and titanium bail for serious saltwater and freshwater anglers.
A practical guide to removing mold and mildew from boats — covering gelcoat, vinyl, canvas, and headliners — plus what NOT to use and how to prevent regrowth.
FLIR M364C thermal cameras offer stabilized pan-tilt imaging for marine vessels. Compare 9Hz vs. 30Hz and standard vs. long-range models to find the right fit for your boat.
A buyer's guide to marine CO and propane alarms — covering USCG recommendations, surface vs. flush mount options, NMEA 2000 integration, and which alarm is right for your vessel.
A deep dive into the Pflueger Monarch spinning reel lineup — sizes 20 through 40 — and why serious anglers choose Monarch for freshwater and light saltwater fishing.
A complete guide to choosing the right marine anchor — anchor types, sizing by boat length, rode selection, scope ratios, and best practices for holding in any bottom condition.
A complete guide to boat fenders — fender types, sizing by boat length, how many you need, rigging tips, and top picks for powerboats, sailboats, and pontoons.
A complete comparison of inflatable and foam life jackets — pros, cons, USCG approval rules, best use cases, and top picks from Onyx, Mustang, and Stearns.
A detailed comparison of Garmin and Humminbird chartplotters — sonar tech, mapping, ecosystem, user interface, and which brand is best for your fishing and boating style.
A complete USCG safety equipment checklist for recreational boaters — covering required gear by vessel size, annual inspection tips, and recommended extras beyond the legal minimum.
A complete buyer's guide to VHF marine radios — fixed-mount vs. handheld, DSC, GPS integration, AIS, and top picks from Garmin and Uniden for every budget.
A complete buyer's guide to fish finders for small boats — sonar types, key features, transducer options, and top picks from Furuno, HawkEye, and Raymarine.