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.
Battery Mate 2503 IG Isolator - 200 Amp, 3 Bank
The Battery Mate is the ultimate solution for charging several batteries simultaneously and is compatible with any type of alternator/battery charger, in both existing and new systems. As the voltage loss between the alternator and battery is negligible, the Battery Mate performs far better than conventional battery isolators. This ensures fast and complete charging of your batteries without having to make additional adjustments to the alternator.
While battery isolators are conventional diode splitters, the Battery Mate's technology is electronic and includes mosfets (transistors). Its components compensate for variations in voltage and ensure that charging continues at the right voltage level, even with several battery banks. The input side on the Battery Mate is connected to the alternator and/or battery charger, while two batteries are connected to the output side. The Battery Mate is easy to install on a DIN rail (industry standard).The Mastervolt Battery Mate can be used in any application even if the standard alternator need external excitation or voltage sensing. In this case the additional IG contact can be connected.
WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
Specifications:
Why a Magnetic Compass Still Matters GPS chartplotters are indispensable, but a magnetic compass is your fail-safe when electronics go dark — dead battery, blown fuse, or water intrusion. Every...
Why Every Boat Needs a VHF Radio A marine VHF (Very High Frequency) radio is one of the most important pieces of safety equipment on any boat. It's your primary...
Why CO and Propane Alarms Are Non-Negotiable Carbon monoxide (CO) is the leading cause of boating fatalities that don't involve drowning. It's colorless, odorless, and can incapacitate a person within...
Choosing the right VHF speaker for your boat comes down to weatherproofing, power handling, and mounting flexibility. Here's what to look for.
A properly installed transducer is the foundation of accurate sonar on your bass boat. This complete guide covers mounting methods, location selection, depth settings, cable routing, water testing, and the...
A properly built NMEA 2000 network lets your chartplotter, GPS, AIS, and instruments share data seamlessly. Here's how to plan and build one.
Marine electrical systems demand corrosion-resistant, properly rated components. Here's a practical overview of terminal blocks, switches, and cables for boat wiring.
Carbon monoxide alarms, fire extinguishers, and life jackets are non-negotiable safety gear for any boat. Here's what to know before you buy.