Chargers, Inverters & Accessories

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Waterproof Battery Chargers

Vented Battery Chargers

Battery Maintainer

Battery Charger Accessories

Battery Combiners

Inverter & Charger Combos

Modified Sine Inverters

Portable Power Inverters

Pure Sine Inverters

Inverter Accessories

Isolators, Transformers & Boosters

Power Packs & Battery Jump Starters

Handheld Radio Charging Accessories

Universal USB Accessories

Featured Brands

Defender offers great deals on a large array of Marine Battery Chargers, Pure Sine and Modified Sine Wave Power Inverters and Accessories, including Combiners, Isolators, Transformers and Boosters from top brands like ProMariner, Xantrex, Charles, Go Power, Sterling Power, and Marinco / Guest. For on the water emergency situations, we also stock Power Packs and Battery Jump Starters, to help get you out of a jam!

Marine Battery Chargers, Inverters & Accessories

Defender Marine offers a full line of battery chargers, isolators, inverters, and boosters. The marine environment demands much of our batteries and every boater knows the woes of dead batteries. Marine battery chargers and combiners regenerate your batteries while available isolators protect starter batteries from drain.

Battery chargers and combiners get the job done for you!

Battery chargers for boats boast up to 60 amp charging and a wide variety of features including automatic charging, "trickle" charging to safe battery life, and even waterproof housings. Marine battery charging combiners do just that - banks of batteries are charged together to ensure that each battery receives the same charge.

Did you know some inverters provide "pure" power?

Marine inverters in essence change DC battery power over to AC power. Sine wave inverters offered by Defender Marine are created to power up sensitive loads. Many smart TVs, electronics, and appliances require a clean power source to work properly, sine inverters provide that clean power.

Lost your charging cord for your marine handheld radio? Look no further!

Defender Marine has a full line of battery charging accessories. That means replacing the lost charging cord from your handheld VHF. Battery cables, ends, and even sensors that will relay the temperature of your batteries are all available at Defender. Jump that marine battery with jumper kits or simply add a USB port and charger in your console. That weekend project is waiting for you!