Marine Batteries & Power
Featured Brands
- Dual Pro®Black Dial/Black Bezel 2.25" Surface Mount Battery GaugeBlack Dial/Black Bezel 2.25" Surface Mount Battery Gauge by Dual Pro®. Configuration: 12, 24, 36, 48 Voltage. The most advanced and reliable battery gauge on the market! Each Lithium Battery Gauge includes a Current Transducer (CT)....Accurately displays battery state/charge statusPROView Link™ compatible!$255.16
- Ancor®3/8" Positive Lead Alloy Battery Terminal (260200)3/8" Positive Lead Alloy Battery Terminal (260200) by Ancor®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...High quality at an affordable priceExpertly made from premium materials$4.35
- Ancor®5/16" Negative Lead Alloy Battery Terminal (260100)5/16" Negative Lead Alloy Battery Terminal (260100) by Ancor®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...High quality at an affordable priceExpertly made from premium materials$4.00
- Ancor®Lead Alloy Battery Terminal Set (260325)Lead Alloy Battery Terminal Set (260325) by Ancor®. Ancor Marine Grade lugs are manufactured from 100 percent heavy-duty annealed tinned copper, providing for maximum current flow while resisting corrosion from salt and moisture....High quality at an affordable priceExpertly made from premium materials$7.55
- Ancor®Right Angle Battery Terminal Cover (260381)Right Angle Battery Terminal Cover by Ancor®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...Engineered to high standardsHigh-grade design delivers extended lifespan$4.00
- Ancor®Tinned Brass Battery Terminal Set (260322)Tinned Brass Battery Terminal Set (260322) by Ancor®. Set of One Wing Nut Style Yellow Brass Nut for 5/16in (8mm) Negative Stud and One Tinned Brass Battery Terminal for 3/8in (10mm) Positive StudHigh quality at an affordable priceExpertly made from premium materials$29.49
- Ancor®Wing Nut Battery Terminal Cover Set (260350)Wing Nut Battery Terminal Cover Set by Ancor®. Set of two #4-#2 boots that visually identify the positive (red) and negative (black) battery terminals while protecting them from environmental contaminants. This product is made of...Engineered to high standardsHigh-grade design delivers extended lifespan$7.14
- Xantrex®Battery Temperature Sensor for Freedom 458 Series Chargers (76002200)Battery Temperature Sensor for Freedom 458 Series Chargers (76002200) by Xantrex®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It...Engineered to high standardsHigh-grade design delivers extended lifespan$52.32
- Xantrex®Battery Temperature Sensor for Freedom SW Inverter/Charger (809-0946)Battery Temperature Sensor for Freedom SW Inverter/Charger (809-0946) by Xantrex®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It...Engineered to high standardsHigh-grade design delivers extended lifespan$33.81
- Xantrex®Battery Temperature Sensor for Solar Chargers (708-0080)Battery Temperature Sensor for Solar Chargers (708-0080) by Xantrex®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability....High quality at an affordable priceExpertly made from premium materials$24.16
- Xantrex®Battery Temperature Sensor for XC and TC2 Chargers (808-0232-01)Battery Temperature Sensor for XC and TC2 Chargers (808-0232-01) by Xantrex®. TRUECharge™2 Battery Temperature Sensor (BTS) is designed for use with TRUECharge2 battery chargers. The BTS mounts on a terminal post of a battery in a...Engineered to high standardsHigh-grade design delivers extended lifespan$50.11
- Xantrex®Echo 15A 12V/24V 1-Bank Battery Charger (82-0123-01)Echo 15A 12V/24V 1-Bank Battery Charger by Xantrex®. Xantrex' digital echo~charge is designed to charge auxiliary or starting batteries from an inverter/charger or other charging source with limited voltage drop. The Xantrex echo~charge...15 A maximum charge currentAutomatically adjusts for 12 or 24 volt battery banks (both battery banks must be the same DC voltage and battery type)$205.56
- Xantrex®MPPT Charge Controller with 25' Cable (7100010)MPPT Charge Controller with 25' Cable by Xantrex®. Designed to charge lithium ion batteries including LIFePO4, the 30 A MPPT (Maximum Power Point Tracking) charge controller features an industry leading 98% charging efficiency and dual...Advanced Maximum Power Point Tracking (MPPT) technology increasing daily energy harvest by 20-30% compared to PWM technologyDual-battery bank charging to simultaneously charge house and starter batteries$93.27
- Xantrex®TrueCharge™ 2 20A 12V DC 3-Bank Battery Charger (804-1220-02)TrueCharge™ 2 20A 12V DC 3-Bank Battery Charger (804-1220-02) by Xantrex®. This NEW feature allows two chargers to work together to combine the output current, achieving up to 120A for large battery banks. In addition to meeting...Microprocessor-controlled, multistage charging algorithmsSettings for two and three-stage charging$468.58
- Xantrex®TrueCharge™ 2 60A 12V DC 3-Bank Battery Charger (804-1260-02)TrueCharge™ 2 60A 12V DC 3-Bank Battery Charger (804-1260-02) by Xantrex®. This NEW feature allows two chargers to work together to combine the output current, achieving up to 120A for large battery banks. In addition to meeting...Microprocessor-controlled, multistage charging algorithmsSettings for two and three-stage charging$905.57
- ACDelco®Gold (Professional Voyager) 12V Battery (M31AGM)Gold (Professional Voyager) 12V Battery by ACDelco®. ACDelco Gold (Professional Voyager) RV and Marine 18 Month Batteries are specifically created for marine cranking applications. They are designed with thinner plates to deliver power...Thermoplastic reinforced separators maximize protection against plate shorting for optimum durabilityBuilt-in “Green Eye” hydrometer on certain deep cycle batteries, for quick-glance state of charge monitoring$229.50
- ACDelco®Gold (Professional Voyager) 12V Battery (M24AGM)Gold (Professional Voyager) 12V Battery by ACDelco®. ACDelco Gold (Professional Voyager) RV and Marine 18 Month Batteries are specifically created for marine cranking applications. They are designed with thinner plates to deliver power...Thermoplastic reinforced separators maximize protection against plate shorting for optimum durabilityBuilt-in “Green Eye” hydrometer on certain deep cycle batteries, for quick-glance state of charge monitoring$185.28
- Attwood®1.5A 1-Bank Battery Charger/Maintainer (11900-4)1.5A 1-Bank Battery Charger/Maintainer by Attwood®. Fully-automatic on-board charger provides a 1.5 Amp maintenance charge. Designed to maintain 12V batteries. Water resistant with safety features like short circuit connection and...LED status indicators1.5 amp$36.52
- Attwood®2A 1-Bank Battery Charger (11901-4)2A 1-Bank Battery Charger by Attwood®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...Dual rated 12 and 6 volt battery charger can be used for all of your marine, automotive, RV and sports applicationsThe charger is compact and perfect for your bench, garage or shop use$51.85
- Attwood®38" Battery Strap (9014-1)38" Battery Strap (9014-1) by Attwood®. Straps are woven polypropylene with "firm-grip" buckles and are completely resistant to battery acid. This product is made of high-quality materials to serve you for years to come. Designed using...Engineered to high standardsHigh-grade design delivers extended lifespan$3.44
- Attwood®38" Battery Strap (9014-3)38" Battery Strap (9014-3) by Attwood®. Straps are woven polypropylene with "firm-grip" buckles and are completely resistant to battery acid. This product is made of high-quality materials to serve you for years to come. Designed using...Engineered to high standardsHigh-grade design delivers extended lifespan$5.04
- Attwood®38" Battery Strap Kit (9013-3)38" Battery Strap Kit by Attwood®. Straps are woven polypropylene with "firm-grip" buckles and are completely resistant to battery acid. This product is made of high-quality materials to serve you for years to come. Designed using...Engineered to high standardsHigh-grade design delivers extended lifespan$6.73
- Attwood®56" Battery Strap (9013A3)56" Battery Strap (9013A3) by Attwood®. Straps are woven polypropylene with "firm-grip" buckles and are completely resistant to battery acid. This product is made of high-quality materials to serve you for years to come. Designed using...Expertly crafted from premium materialsDesigned to match rigorous quality standards$7.26
- Attwood®56" Battery Strap (9014A3)56" Battery Strap (9014A3) by Attwood®. Straps are woven polypropylene with "firm-grip" buckles and are completely resistant to battery acid. This product is made of high-quality materials to serve you for years to come. Designed using...Engineered to high standardsHigh-grade design delivers extended lifespan$5.31
- Attwood®Adjustable Battery Tray for 24 Series Batteries (9090-5)Adjustable Battery Tray for 24 Series Batteries by Attwood®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...Heavy-duty, non-corrosive black plasticMeets ABYC Standard E-10 and U.S. Coast Guard requirements$9.82
- Attwood®Adjustable Battery Tray for 27 Series Batteries (9091-5)Adjustable Battery Tray for 27 Series Batteries by Attwood®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...Heavy-duty, non-corrosive black plasticMeets ABYC Standard E-10 and U.S. Coast Guard requirements$10.88
- Attwood®Battery Box for 16 Series Batteries (9082-1)Battery Box for 16 Series Batteries by Attwood®. For smaller batteries like Series 16 and those used in jet skis and power lawn and garden equipment. Vented black battery box. All battery boxes meet ABYC Standard E-10 and U.S. Coast...Engineered to high standardsHigh-grade design delivers extended lifespan$11.53
- Attwood®Battery Clip Set (14258-6)Battery Clip Set by Attwood®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an...Quick-connect battery clips for 12-volt electrical accessories10-amp rated, copper-plated construction with red and black handle grips$3.11
- Attwood®Battery Tray for 24 Series Batteries (9092-5)Battery Tray for 24 Series Batteries by Attwood®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...A simple-to-install battery holder that fits into a limited spaceFor batteries up to 10-1/2" in height$9.05
- Attwood®Battery Tray for 27 Series Batteries (9093-5)Battery Tray for 27 Series Batteries by Attwood®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...A simple-to-install battery holder that fits into a limited spaceFor batteries up to 10-1/2" in height$8.89
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.