Marine Batteries & Power
Featured Brands
- Minn Kota®20A 2-Bank Digital On-Board Battery Charger (1822205)20A 2-Bank Digital On-Board Battery Charger (1822205) by Minn Kota®. Get into the digitally-controlled charger game with this Digital on-board series. They're fast and accurate, so you get back on the water sooner and stay out there...Digital Control: Microprocessor-based design enables these chargers to continually monitor the temperature and state of charge. It means faster, more regulated, precise charge for your battery - and a longer day of worry-free fishingAutomatic Multi-Stage Charging: Every Minn Kota charger controls the voltage and current your battery gets throughout the three stages of the charging cycle for a safe, precise charge$234.92
- Minn Kota®30A 3-Bank Digital On-Board Battery Charger (1823305)30A 3-Bank Digital On-Board Battery Charger (1823305) by Minn Kota®. Get into the digitally-controlled charger game with this Digital on-board series. They're fast and accurate, so you get back on the water sooner and stay out there...Digital Control: Microprocessor-based design enables these chargers to continually monitor the temperature and state of charge. It means faster, more regulated, precise charge for your battery - and a longer day of worry-free fishingAutomatic Multi-Stage Charging: Every Minn Kota charger controls the voltage and current your battery gets throughout the three stages of the charging cycle for a safe, precise charge$291.64
- Minn Kota®40A 4-Bank Digital On-Board Battery Charger (1824405)40A 4-Bank Digital On-Board Battery Charger by Minn Kota®. Get into the digitally-controlled charger game with this Digital on-board series. They're fast and accurate, so you get back on the water sooner and stay out there longer. This...Digital Control: Microprocessor-based design enables these chargers to continually monitor the temperature and state of charge. It means faster, more regulated, precise charge for your battery - and a longer day of worry-free fishingAutomatic Multi-Stage Charging: Every Minn Kota charger controls the voltage and current your battery gets throughout the three stages of the charging cycle for a safe, precise charge$372.65
- Minn Kota®MK-1 10A 1-Bank DC Alternator On-Board Battery Charger (1821031)MK-1 10A 1-Bank DC Alternator On-Board Battery Charger by Minn Kota®. Get an extra boost of power and better battery life. These Alternator chargers use charge-on-the-fly technology to redirect excess power from your alternator to your...Charge-on-the-fly Technology: Alternator chargers boost your trolling batteries while on the water. They take excess power from the outboard's alternator and deliver it to your trolling batteries to extend run times, decrease on-shore charge times and increase battery lifeBattery Protection: Frequent deep discharges can damage your battery over time. With the boost you get from an Alternator charger, you avoid those deep discharges - in addition to shortening charge times and extending battery life$89.10
- Minn Kota®Precision 18A 3-Bank On-Board Battery Charger (1833180)Precision 18A 3-Bank On-Board Battery Charger by Minn Kota®. The fastest, most advanced chargers out there. These digitally controlled, on-board chargers protect your battery for the long haul with features that help ensure an accurate...Battery Selection by Bank: On each bank, you can select what battery type you have connected (AGM, gel or flooded lead acid) to guarantee a safe, protected chargeBattery Equalization: Every time you plug in a Precision charger, it "equalizes," meaning it cleans and conditions your battery to extend run time and battery life. You can also activate a more rigorous, complete equalization at the push of a button. (Only in flooded lead-acid battery setting)$252.73
- Minn Kota®Precision MK-106PC 6A 1-Bank On-Board Battery Charger (1831060)Precision MK-106PC 6A 1-Bank On-Board Battery Charger by Minn Kota®. Longer run times. Shorter charge times. That's the precision difference that makes this the best charger on the water. Get the fastest charge, and a smart, precise...Battery Type Selection: Each charging bank can be selected to your specific battery type (AGM, gel or flooded lead acid) to guarantee a safe, protected chargeAutomatic Temperature Compensation: Precision chargers sense and adjust to ambient temperature fluctuations to ensure a fast, accurate charge$99.83
- Minn Kota®Precision PCL MK230PCL 30A 2-Bank On-Board Battery Charger (1832302)Precision PCL MK230PCL 30A 2-Bank On-Board Battery Charger (1832302) by Minn Kota®. Longer run times. Shorter charge times. That's the precision difference that keeps anglers on the water longer and puts more fish in the boat. Now, the...Battery Type Selection: Each charging bank can be selected to your specific battery type (Lithium (LiFePO4) AGM or flooded lead acid) to guarantee a safe, protected chargeAutomatic Temperature Compensation: Precision chargers sense and adjust to ambient temperature fluctuations to ensure a fast, accurate charge$299.74
- Minn Kota®Precision PCL MK345PCL 45A 3-Bank On-Board Battery Charger (1833452)Precision PCL MK345PCL 45A 3-Bank On-Board Battery Charger (1833452) by Minn Kota®. Longer run times. Shorter charge times. That's the precision difference that keeps anglers on the water longer and puts more fish in the boat. Now, the...Battery Type Selection: Each charging bank can be selected to your specific battery type (Lithium (LiFePO4) AGM or flooded lead acid) to guarantee a safe, protected chargeAutomatic Temperature Compensation: Precision chargers sense and adjust to ambient temperature fluctuations to ensure a fast, accurate charge$405.04
- Newmar®100A 24V DC Battery Integrator (BI-24-100)100A 24V DC Battery Integrator (BI-24-100) by Newmar®. Charging multiple battery banks without use of diode isolators dictates that the batteries be connected or integrated only whenever a charge voltage is present so that they may be...Made with precision and quality in mindDesigned to match rigorous quality standards$232.19
- Newmar®10A Noise Filter (PC-10)10A Noise Filter (PC-10) by Newmar®. Installed at affected equipment in "+" and "-" leads. The interference or electronic "noise" generated by alternators, ignition systems, motors, etc. can render a vehicle or vessel's radio or other...Heavy duty aluminum constructionOperate on 6-48 V DC systems$94.15
- Newmar®120A 2-Bank 1 Alternator Battery Isolator (1-2-120)120A 2-Bank 1 Alternator Battery Isolator (1-2-120) by Newmar®. Heavy duty isolators allow charging multiple batteries automatically from alternators and prevent discharge from one battery bank to another. Each battery is charged...Made with precision and quality in mindBuilt to last$189.40
- Newmar®120A 3-Bank 1 Alternator Battery Isolator (1-3-120)120A 3-Bank 1 Alternator Battery Isolator (1-3-120) by Newmar®. Heavy duty isolators allow charging multiple batteries automatically from alternators and prevent discharge from one battery bank to another. Each battery is charged...Made with precision and quality in mindBuilt to last$256.84
- Newmar®120A 3-Bank 2 Alternator Battery Isolator (2-3-120)120A 3-Bank 2 Alternator Battery Isolator (2-3-120) by Newmar®. Heavy duty isolators allow charging multiple batteries automatically from alternators and prevent discharge from one battery bank to another. Each battery is charged...Made with precision and quality in mindBuilt to last$508.89
- Newmar®13A 24V 3-Bank Battery Charger (PT-24-13W)13A 24V 3-Bank Battery Charger (PT-24-13W) by Newmar®. "Smart" marine battery charging technology for electrical systems aboard, workboats, military vessels, commercial vessels, and recreational craft. These chargers interact with..."Smart" circuitry provides three stage charging - bulk, absorption, floatGel-Cell/Flooded Lead-acid/AGM battery type switch selects optimum charge/float voltages$854.26
- Newmar®14A 12V 3-Bank Battery Charger (PT-14W)14A 12V 3-Bank Battery Charger (PT-14W) by Newmar®. "Smart" marine battery charging technology for electrical systems aboard, workboats, military vessels, commercial vessels, and recreational craft. These chargers interact with..."Smart" circuitry provides three stage charging - bulk, absorption, floatGel-Cell/Flooded Lead-acid/AGM battery type switch selects optimum charge/float voltages$739.64
- Newmar®150A Noise Filter (150-A)150A Noise Filter (150-A) by Newmar®. Installed at Alternator. The interference or electronic "noise" generated by alternators, ignition systems, motors, etc. can render a vehicle or vessel's radio or other electronic equipment...Heavy duty aluminum constructionOperate on 6-48 V DC systems$248.90
- Newmar®165A 3-Bank 1 Alternator Battery Isolator (1-3-165)165A 3-Bank 1 Alternator Battery Isolator (1-3-165) by Newmar®. Heavy duty isolators allow charging multiple batteries automatically from alternators and prevent discharge from one battery bank to another. Each battery is charged...Made with precision and quality in mindBuilt to last$382.73
- Newmar®200A 12V DC Battery Integrator (BI-200)200A 12V DC Battery Integrator (BI-200) by Newmar®. Charging multiple battery banks without use of diode isolators dictates that the batteries be connected or integrated only whenever a charge voltage is present so that they may be...Made with precision and quality in mindDesigned to match rigorous quality standards$408.12
- Newmar®20A 24V 3-Bank Battery Charger (PT-24-20U)20A 24V 3-Bank Battery Charger (PT-24-20U) by Newmar®. "Smart" marine battery charging technology for electrical systems aboard, workboats, military vessels, commercial vessels, and recreational craft. These chargers interact with..."Smart" circuitry provides three stage charging - bulk, absorption, floatGel-Cell/Flooded Lead-acid/AGM battery type switch selects optimum charge/float voltages$1,330.69
- Newmar®25 A 6-48 V DC Input/13.6 V DC Output Power Conditioner (PC-25)25 A 6-48 V DC Input/13.6 V DC Output Power Conditioner (PC-25) by Newmar®. The Isolated Series provides voltage from conversion as well as input/output isolation, allowing use of negative ground gear with positive or floating ground...Operate electronics at optimal input voltage, even from nearly drained batteriesBoost voltage to compensate for voltage drops in long wire runs from batteries$139.92
- Newmar®25A 12V 3-Bank Battery Charger (PT-25W)25A 12V 3-Bank Battery Charger (PT-25W) by Newmar®. "Smart" marine battery charging technology for electrical systems aboard, workboats, military vessels, commercial vessels, and recreational craft. These chargers interact with..."Smart" circuitry provides three stage charging - bulk, absorption, floatGel-Cell/Flooded Lead-acid/AGM battery type switch selects optimum charge/float voltages$846.84
- Newmar®30A Galvanic Isolator (GI-30)30A Galvanic Isolator (GI-30) by Newmar®. The Galvanic Isolator (GI) is a device for reducing stray low voltage currents traveling between the shore power's AC safety ground (earth) and the boat's DC bonding system, while maintaining...Engineered to high standardsHigh-grade design delivers extended lifespan$381.83
- Newmar®40A 12V 3-Bank Battery Charger (PT-40U)40A 12V 3-Bank Battery Charger (PT-40U) by Newmar®. "Smart" marine battery charging technology for electrical systems aboard, workboats, military vessels, commercial vessels, and recreational craft. These chargers interact with..."Smart" circuitry provides three stage charging - bulk, absorption, floatGel-Cell/Flooded Lead-acid/AGM battery type switch selects optimum charge/float voltages$1,376.18
- Newmar®45A 24V 3-Bank Battery Charger (PT-24-45U)45A 24V 3-Bank Battery Charger (PT-24-45U) by Newmar®. "Smart" marine battery charging technology for electrical systems aboard, workboats, military vessels, commercial vessels, and recreational craft. These chargers interact with..."Smart" circuitry provides three stage charging - bulk, absorption, floatGel-Cell/Flooded Lead-acid/AGM battery type switch selects optimum charge/float voltages$2,169.69
- Newmar®50A Galvanic Isolator (GI-50)50A Galvanic Isolator (GI-50) by Newmar®. The Galvanic Isolator (GI) is a device for reducing stray low voltage currents traveling between the shore power's AC safety ground (earth) and the boat's DC bonding system, while maintaining...Engineered to high standardsHigh-grade design delivers extended lifespan$334.54
- Newmar®70A 2-Bank 1 Alternator Battery Isolator (1-2-70)70A 2-Bank 1 Alternator Battery Isolator (1-2-70) by Newmar®. These heavy duty isolators allow charging multiple batteries automatically from one or two alternators, and prevent discharge or ‘dumping" of one battery into another. Each...Heavy duty constructionRated for systems up to 48 volts DC, negative ground$105.36
- Newmar®70A 3-Bank 2 Alternator Battery Isolator (2-3-70)70A 3-Bank 2 Alternator Battery Isolator (2-3-70) by Newmar®. These heavy duty isolators allow charging multiple batteries automatically from one or two alternators, and prevent discharge or ‘dumping" of one battery into another. Each...Heavy duty constructionRated for systems up to 48 volts DC, negative ground$283.97
- Newmar®80A 12V 3-Bank Battery Charger (PT-80)80A 12V 3-Bank Battery Charger (PT-80) by Newmar®. "Smart" marine battery charging technology for electrical systems aboard, workboats, military vessels, commercial vessels, and recreational craft. These chargers interact with batteries..."Smart" circuitry provides three stage charging - bulk, absorption, floatGel-Cell/Flooded Lead-acid/AGM battery type switch selects optimum charge/float voltages$2,273.57
- Newmar®8A 24V 3-Bank Battery Charger (PT-24-8W)8A 24V 3-Bank Battery Charger (PT-24-8W) by Newmar®. "Smart" marine battery charging technology for electrical systems aboard, workboats, military vessels, commercial vessels, and recreational craft. These chargers interact with..."Smart" circuitry provides three stage charging - bulk, absorption, floatGel-Cell/Flooded Lead-acid/AGM battery type switch selects optimum charge/float voltages$723.63
- Newmar®95A 24V 3-Bank Battery Charger (PT-24-95U)95A 24V 3-Bank Battery Charger (PT-24-95U) by Newmar®. "Smart" marine battery charging technology for electrical systems aboard, workboats, military vessels, commercial vessels, and recreational craft. These chargers interact with..."Smart" circuitry provides three stage charging - bulk, absorption, floatGel-Cell/Flooded Lead-acid/AGM battery type switch selects optimum charge/float voltages$3,386.36
If you’re having trouble starting your boat or watercraft, or if you’re not experiencing the running time you used to get with trolling motors or electronics, then you may be due for battery replacement. We have replacement batteries for all marine starting, deep cycle, and electronics applications as well as products to meet all your battery related needs, including AC and solar-powered battery chargers, and inverter/chargers; regulators and isolators to control battery charging from the alternator; cables and mounting hardware; and accessories like terminals, remote panels and temperature sensors.
Two kinds of batteries have traditionally been needed for marine use, batteries that could supply the cranking power to reliably start engines, and batteries that could supply power for long periods without recharging, for trolling motors and to power electronic accessories. Instead of making you choose between a starting and a deep cycle battery we can offer you batteries that combine the best of both worlds. These batteries pack pure lead plates with more surface area into the case for exceptional cranking power and longer cycle life. They’re maintenance free, vibration resistant, and will never leak.
In addition to the above we also have replacement batteries for underwater viewing systems, ice fishing packs and other electronic devices. Like our dual purpose starting/deep cycle batteries, these batteries are maintenance-free and of non-spillable design. The best way to ensure you get long service life from your batteries is with proper maintenance and keeping them fully charged. Since our batteries are maintenance-free you never need to add water, and because they are classified non-spillable, you don’t have to be concerned with electrolyte leaking or out-gassing that can cause cable and terminal corrosion. A battery should be brought back to proper charge level after discharge as soon as possible to prevent sulfation, which can shorten battery life, and we have the chargers for the job.
We have battery charger models appropriate for AGM (Absorbed Glass Mat), gel cell, and flooded cell lead-acid batteries. Our selection includes inexpensive portable AC powered maintenance chargers, battery maintainers that remain connected to the battery, solar-powered chargers, and panel-style, permanently mounted chargers that can safely charge multiple battery banks. We also offer inverter chargers that can charge batteries when connected to AC power at the dock, but also convert DC power to AC to operate common household current powered electronics. We have modified sine wave inverter/chargers that are fine for running lights, electric heaters and similar devices, as well as pure sine wave inverter/chargers necessary for operating more sensitive electronics.
When the boat’s engine is running, the alternator charges the battery. Boats commonly have one battery for starting and one or more additional batteries for powering electrical accessories. Battery isolators and automatic charging relays ensure that all batteries receive current for charging, but isolate the batteries when discharging so a weak battery won’t draw down a fully charged battery. This way a depleted auxiliary battery won’t deprive the starting battery of the cranking power necessary to start the engine. We have a large selection of isolators and automatic charging relays in various amperages and for different numbers of batteries. You’ll also find all the other marine battery necessities on our digital shelves including battery boxes and trays, and battery cables and terminals.