A battery charger is a device that is used to charge a battery. It is a device that is used to put energy into a battery by forcing an electric current through it.

The Best Battery Charger For Boat

  • NOCO Genius GEN5X2, 2-Bank, 10-Amp (5-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger, Battery Maintainer and Battery Desulfator with Temperature Compensation
  • NOCO Genius GEN5X3, 3-Bank, 15-Amp (5-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger, Battery Maintainer and Battery Desulfator with Temperature Compensation
  • ProMariner ProSport HD 20 Amp Triple Bank Waterproof Marine Battery Charger, 44021
  • NOCO Genius GEN5X1, 1-Bank, 5-Amp (5-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger, Battery Maintainer and Battery Desulfator with Temperature Compensation
  • Schumacher SC1280 Fully Automatic Battery Charger and Maintainer 15 Amp/3 Amp, 6V/12V - for Marine and Automotive Batteries
  • NOCO Genius GENPRO10X3, 3-Bank, 30-Amp (10-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger, Battery Maintainer and Battery Desulfator with Temperature Compensation
  • 10-Amp Car Battery Charger, 12V and 24V Smart Fully Automatic Battery Charger Maintainer Trickle Charger w/ Temperature Compensation for Car Truck Motorcycle Lawn Mower Boat Marine Lead Acid Batteries
  • NOCO Genius GENPRO10X2, 2-Bank, 20-Amp (10-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger, Battery Maintainer and Battery Desulfator with Temperature Compensation
  • NOCO Genius GENPRO10X4, 4-Bank, 40-Amp (10-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger, Battery Maintainer and Battery Desulfator with Temperature Compensation
  • ProMariner 63140 ProNauticP Series 1240P 12-Volts 40-Amp Battery Charger,White
    NOCO Genius GEN5X2, 2-Bank, 10-Amp (5-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger, Battery Maintainer and Battery Desulfator with Temperature Compensation
    386 Reviews

    Meet the GEN5X2 - Similar to our GENM2, only better. It s 37% smaller and delivers 43% more power. It s one of the best performing onboard marine battery chargers we have ever made. Multiple banks - A two-bank onboard battery charger rated a 10-amps - 5-amps per bank - for 12-volt batteries, including marine, boat, starter, and deep-cycle batteries. Charging modes - Independently charge and control each battery bank with selectable charging modes - including 12V, 12V AGM, 12V Lithium, and 12V Repair Mode - for all types of lead-acid and lithium-ion batteries. Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates. Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts. Redefined mounting - A simplified mounting system allows for quick and easy installations in any direction - even up-side-down - with an integrated anti-vibration backing to isolate shock, vibration, and noise. Designed for water - A fully-sealed and waterproof onboard battery charger with an ingress protection rating of IP68, but has survived brutal life cycle testing, including thousands of hours underwater. What s in the box - GEN5X2 10-amp 2-bank waterproof onboard marine battery chargers (120-240VAC) with a 72-Inch DC cables with 3/8-inch eyelets and a 72-inch Type-B AC cable, (2) self-tapping mounting screws, user guide, and 3-year warranty.

    Free shipping
    NOCO Genius GEN5X3, 3-Bank, 15-Amp (5-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger, Battery Maintainer and Battery Desulfator with Temperature Compensation
    386 Reviews

    Meet the GEN5X3 - Similar to our GENM3, only better. It s 37% smaller and delivers 43% more power. It s one of the best performing onboard marine battery chargers we have ever made. Multiple banks - A three-bank onboard battery charger rated a 15-amps - 5-amps per bank - for 12-volt batteries, including marine, boat, starter, and deep-cycle batteries. Charging modes - Independently charge and control each battery bank with selectable charging modes - including 12V, 12V AGM, 12V Lithium, and 12V Repair Mode - for all types of lead-acid and lithium-ion batteries. Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates. Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts. Redefined mounting - A simplified mounting system allows for quick and easy installations in any direction - even up-side-down - with an integrated anti-vibration backing to isolate shock, vibration, and noise. Designed for water - A fully-sealed and waterproof onboard battery charger with an ingress protection rating of IP68, but has survived brutal life cycle testing, including thousands of hours underwater. What s in the box - GEN5X3 15-amp 3-bank waterproof onboard marine battery chargers (120-240VAC) with a 72-Inch DC cables with 3/8-inch eyelets and a 72-inch Type-B AC cable, (2) self-tapping mounting screws, user guide, and 3-year warranty.

    Free shipping
    ProMariner ProSport HD 20 Amp Triple Bank Waterproof Marine Battery Charger, 44021
    386 Reviews

    ProSport HD 20A Triple Bank Waterproof Marine Battery Charger (Part Number 44021) replaces the old ProMariner Gen 3 ProSport 20 plus (part number 43021) ProMar Digital Technology: Microprocessor and software controlled charging technology for fast, precise charging Distributed-On-Demand Technology: 100% of all available charging amps are utilized by distributing unused charging amps to any one or combination of all batteries as needed Heavy Duty Tri-Surface Extruded Heat Sink Design: Upper, lower and rear facing heat sink design for optimal cooling while delivering true rated constant current charging amps during its two charge mode Expanded LED Display with Completion Status Gauge: LED fuel gauge style completion status. Four color multi-stage mode LED status bar. Multi-stage Charge Mode, System Check OK, individual Battery Status and Battery Type indication

    Free shipping
    NOCO Genius GEN5X1, 1-Bank, 5-Amp (5-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger, Battery Maintainer and Battery Desulfator with Temperature Compensation
    386 Reviews

    Meet the GEN5X1 - Similar to our GENM1, only better. It s 37% smaller and delivers 43% more power. It s one of the best performing onboard marine battery chargers we have ever made. Multiple banks - A one-bank onboard battery charger rated a 5-amps - 5-amps per bank - for 12-volt batteries, including marine, boat, starter, and deep-cycle batteries. Charging modes - Independently charge and control each battery bank with selectable charging modes - including 12V, 12V AGM, 12V Lithium, and 12V Repair Mode - for all types of lead-acid and lithium-ion batteries. Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates. Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts. Redefined mounting - A simplified mounting system allows for quick and easy installations in any direction - even up-side-down - with an integrated anti-vibration backing to isolate shock, vibration, and noise. Designed for water - A fully-sealed and waterproof onboard battery charger with an ingress protection rating of IP68, but has survived brutal life cycle testing, including thousands of hours underwater. What s in the box - GEN5X1 5-amp 1-bank waterproof onboard marine battery chargers (120-240VAC) with a 72-Inch DC cables with 3/8-inch eyelets and a 72-inch Type-B AC cable, (2) self-tapping mounting screws, user guide, and 3-year warranty.

    Free shipping
    Schumacher SC1280 Fully Automatic Battery Charger and Maintainer 15 Amp/3 Amp, 6V/12V - for Marine and Automotive Batteries
    386 Reviews

    RELIABLE POWER: Delivers 15 Amp rapid charge and 3 Amp maintain to automotive and marine batteries; compatible with standard, AGM, gel, and deep-cycle batteries SMART CHARGING: Microprocessor-controlled automatic amperage rate adjustment and multi-stage charging for added precision, safety, and battery life DIGITAL DISPLAY: LED display, indicator lights, and simple button controls for ease of use VOLTAGE DETECTION: Automatically detects 6V or 12V batteries SAFE AND RELIABLE: Reverse hook-up protection prevents the charger from operating if the clamps are reversed

    Free shipping
    NOCO Genius GENPRO10X3, 3-Bank, 30-Amp (10-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger, Battery Maintainer and Battery Desulfator with Temperature Compensation
    386 Reviews

    Meet the GENPRO10X3 - Similar to our GEN3, only better. It s 27% smaller and delivers 33% more power. It s one of the best performing onboard marine battery chargers we have ever made. Multiple banks - A three-bank onboard battery charger rated a 30-amps - 10-amps per bank - for 12-volt batteries, including marine, boat, starter, and deep-cycle batteries. Charging modes - Independently charge and control each battery bank with selectable charging modes - including 12V, 12V AGM, 12V Lithium, and 12V Repair Mode - for all types of lead-acid and lithium-ion batteries. Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates. Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts. Redefined mounting - A simplified mounting system allows for quick and easy installations in any direction - even up-side-down - with an integrated anti-vibration backing to isolate shock, vibration, and noise. Designed for water - A fully-sealed and waterproof onboard battery charger with an ingress protection rating of IP68, but has survived brutal life cycle testing, including thousands of hours underwater. What s in the box - GENPRO10X3 30-amp 3-bank waterproof onboard marine battery chargers (120-240VAC) with a 72-Inch DC cables with 3/8-inch eyelets and a 72-inch Type-B AC cable, (2) self-tapping mounting screws, user guide, and 3-year warranty.

    Free shipping
    10-Amp Car Battery Charger, 12V and 24V Smart Fully Automatic Battery Charger Maintainer Trickle Charger w/ Temperature Compensation for Car Truck Motorcycle Lawn Mower Boat Marine Lead Acid Batteries
    273 Reviews

    【10-AMP QUICK CHARGER】12V 10-Amp and 24V 5-Amp 7-stage quick battery charger, charging speed is much faster than 8-Amp or 5-Amp automatic chargers. Charge or repair all 12-volt and 24volt lead-acid automotive, marine and deep-cycle batteries including AGM, GEL, SLA, Flooded in cars, trucks, SUVs, motorcycles, lawn mowers, boats marine, etc. NEW REPLACEMENT AVAILABLE FOR ANY QUALITY ISSUE. 【8 CHARGING PROTECTION】Smart control, temp compensation in hot climates and under-charging in cold climates, reverse protection, cooling system, overcurrent, fireproof material, overvoltage, short circuit. Trickle charger with multiple protection ensure the safety charging at anytime anywhere. No worries! 【HIGH-EFFICIENCY PULSE REPAIR】Automatically detects battery sulfation and acid stratification, take newest pulse repair function to restore lost battery performance for stronger engine starts and extended battery life. Note: can not activate or charging totally dead batteries. 【VISUALIZED CHARGING】 Large LCD display the charging and battery status; charge voltage and current, inside temperature, charge percentage, summer mode, winter mode, etc. More convenient to use. 【PLUG AND PLAY】 no complicated steps, just plug and charge, stay at home and charge your batteries on your own. All-in-one battery solution as battery charger, battery maintainer, trickle charger, plus battery desulfator. The must-have tool for your garage

    Free shipping
    NOCO Genius GENPRO10X2, 2-Bank, 20-Amp (10-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger, Battery Maintainer and Battery Desulfator with Temperature Compensation
    386 Reviews

    Meet the GENPRO10X2 - Similar to our GEN2, only better. It s 19% smaller and delivers 33% more power. It s one of the best performing onboard marine battery chargers we have ever made. Multiple banks - A two-bank onboard battery charger rated a 20-amps - 10-amps per bank - for 12-volt batteries, including marine, boat, starter, and deep-cycle batteries. Charging modes - Independently charge and control each battery bank with selectable charging modes - including 12V, 12V AGM, 12V Lithium, and 12V Repair Mode - for all types of lead-acid and lithium-ion batteries. Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates. Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts. Redefined mounting - A simplified mounting system allows for quick and easy installations in any direction - even up-side-down - with an integrated anti-vibration backing to isolate shock, vibration, and noise. Designed for water - A fully-sealed and waterproof onboard battery charger with an ingress protection rating of IP68, but has survived brutal life cycle testing, including thousands of hours underwater. What s in the box - GENPRO10X2 20-amp 2-bank waterproof onboard marine battery chargers (120-240VAC) with a 72-Inch DC cables with 3/8-inch eyelets and a 72-inch Type-B AC cable, (2) self-tapping mounting screws, user guide, and 3-year warranty.

    Free shipping
    NOCO Genius GENPRO10X4, 4-Bank, 40-Amp (10-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger, Battery Maintainer and Battery Desulfator with Temperature Compensation
    386 Reviews

    Meet the GENPRO10X4 - Similar to our GEN4, only better. It s 10% smaller and delivers 33% more power. It s one of the best performing onboard marine battery chargers we have ever made. Multiple banks - A four-bank onboard battery charger rated a 40-amps - 10-amps per bank - for 12-volt batteries, including marine, boat, starter, and deep-cycle batteries. Charging modes - Independently charge and control each battery bank with selectable charging modes - including 12V, 12V AGM, 12V Lithium, and 12V Repair Mode - for all types of lead-acid and lithium-ion batteries. Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates. Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts. Redefined mounting - A simplified mounting system allows for quick and easy installations in any direction - even up-side-down - with an integrated anti-vibration backing to isolate shock, vibration, and noise. Designed for water - A fully-sealed and waterproof onboard battery charger with an ingress protection rating of IP68, but has survived brutal life cycle testing, including thousands of hours underwater. What s in the box - GENPRO10X4 40-amp 4-bank waterproof onboard marine battery chargers (120-240VAC) with a 72-Inch DC cables with 3/8-inch eyelets and a 72-inch Type-B AC cable, (2) self-tapping mounting screws, user guide, and 3-year warranty.

    Free shipping
    ProMariner 63140 ProNauticP Series 1240P 12-Volts 40-Amp Battery Charger,White
    950 Reviews

    Promar Digital performance charging System Charges three banks 40 amp charge capacity 12 Volt DC output Up to 12 performance & precision 4-stage charging profiles: Charge, Condition, Maintain and Re-condition; Automatic dockside power mode for 12 Volt DC lighting and appliances; Factory set for Flooded (Lead Acid) batteries; AGM, GEL selectable Auto-ranging (100-250VAC/50-60Hz) global AC input with reduced harmonic distortion allowing all models to operate off a household power outlet connection; ProNauticP consumes less power so more AC power is available on board Automatically programs conditioning time based on discharge state of batteries; Automatically de-sulfates batteries after 21 days in the maintain mode, improving reserve power performance & extending battery life Real time indication of wiring faults or adverse conditions that may impact the operation of a boat s charging system After 72 hours of not seeing a load greater than 5 amps, float voltage will be lowered consuming less energy during storage periods (for flooded & sealed charge profiles)

    Free shipping

Do marine batteries need a special charger?

Do You Need A Special Charger For A Marine Battery? The short answer is: no. However, you must use a charger that matches your boat battery’s chemistry and voltage. Further, a charger that is made specifically for boats will be water-resistant (or waterproof) and can be permanently mounted, which is quite convenient.

Can you use any charger for a marine battery?

Do I Need a Special Charger for a Marine Battery? No, the most important thing is that the charger matches the chemistry and voltage of your boat battery. Any charger that does this will work fine. One of the main advantages of marine chargers is that they’re often water resistant.Jun 8, 2022

How do I choose a marine battery charger?

Choose a charger with a rated output (amperage) that’s about 10 to 15 percent of the combined batteries' capacity (ampere-hour or Ah). So if you need to recharge two Group 27 batteries (2 x 105 Ah = 210 Ah), a rated 20-amp charger is a good fit. A typical dual-bank, 20-amp charger has a 10/10 per leg configuration.Nov 20, 2014

Can you charge a marine battery with a car charger?

So, can you charge a marine battery with a car battery charger? The answer is yes, you can charge a marine battery with a car battery charger. However, you should not do it on a regular basis. Marine batteries are designed to be charged at a slower rate than car batteries.May 13, 2022

Do you have to unhook a boat battery to charge it?

This is a common question that we get asked and the answer is pretty simple. Yes, it is necessary to disconnect the battery from the boat before charging it.May 13, 2022

Can I charge battery while connected?

If they look dirty or corroded, you’ll need to clean them before charging your battery. Disconnect your car battery. Although charging a car battery while still connected or in situ is possible, it’s always a good idea to disconnect the battery before charging after a quick clean.

Do I need to disconnect my battery to trickle charge it?

Can I Leave the Battery Connected When the Trickle Charger is Plugged? If you are using a conditioning trickle charger, there is no need to disconnect the battery. However, if you should unplug the battery if you are using a full-power charger.Jun 20, 2021

Can I use trickle charge while it is connected?

Some trickle chargers can safely be left connected for months without doing harm to your battery, providing an easy long term battery maintenance strategy. Others may only be left connected for a few days at most. Be sure to check your trickle charger’s manual for details.

What amp should I charge my marine battery?

It’s best to use a charger that provides between 5 and 15 amps for a deep cycle battery, and this is exactly the range in which most deep cycle marine battery chargers come.

Is it better to charge a marine battery slow or fast?

Instead, it will show that it is fully charged long before it actually reaches full capacity. By contrast, a slow charge is perfect for charging deep cycle batteries because it prevents heat from building up and ensures that the full capacity of the battery is reached.

Do marine batteries need a special charger?

Do You Need A Special Charger For A Marine Battery? The short answer is: no. However, you must use a charger that matches your boat battery’s chemistry and voltage. Further, a charger that is made specifically for boats will be water-resistant (or waterproof) and can be permanently mounted, which is quite convenient.

Can I leave my boat charger plugged in all the time?

The main reason for not suggesting leaving a boat battery charger on all the time is that it could dry up your boat battery cells and when it happens, and then you might face the risk of overheating, which could eventually lead to a fire if left for too long.

Should you leave your boat battery on charger?

Don’t leave the battery connected Unless your battery will be hooked up to a trickle charger for the winter months, it’s not a good idea to leave it connected to anything. By leaving the battery connected to the boat you run the risk of increased corrosion and an increased rate of discharge.

Should I leave my boat battery charger on all winter?

Make sure you don’t leave them hooked up to a charger all winter! This can be dangerous, and will damage your batteries. Once charged, the self discharge rate of the batteries will keep them up to snuff until June for sure.

Can you overcharge a boat battery?

  1. Overcharge and undercharge This occurs when lead sulfate crystals form on the negative plates, impeding performance and reducing the battery’s ability to charge. Eventually this can render it unusable. Excessive or incorrect overcharging can be equally damaging, particularly with AGM and gel batteries.

Can you use any charger for a marine battery?

Do I Need a Special Charger for a Marine Battery? No, the most important thing is that the charger matches the chemistry and voltage of your boat battery. Any charger that does this will work fine. One of the main advantages of marine chargers is that they’re often water resistant.Jun 8, 2022

What kind of battery charger do I need to charge a marine battery?

If your boat has a 12v battery, you’ll require a 12v charger. The same applies to two 12v batteries in a parallel setup—the voltage does not double in this setup, and you’ll still need a 12v battery charger.Jun 16, 2021

How do I choose a marine battery charger?

Choose a charger with a rated output (amperage) that’s about 10 to 15 percent of the combined batteries' capacity (ampere-hour or Ah). So if you need to recharge two Group 27 batteries (2 x 105 Ah = 210 Ah), a rated 20-amp charger is a good fit. A typical dual-bank, 20-amp charger has a 10/10 per leg configuration.Nov 20, 2014

Can I charge a deep cycle battery with a regular charger?

Using a traditional battery charger to recharge your deep cycle battery will not give you the best possible results. This is because excess heat is produced whenever a battery is charging. A deep cycle battery is not designed to handle the rapid charging and extra heat, so it may never reach full capacity.

Do marine batteries need a special charger?

Do You Need A Special Charger For A Marine Battery? The short answer is: no. However, you must use a charger that matches your boat battery’s chemistry and voltage. Further, a charger that is made specifically for boats will be water-resistant (or waterproof) and can be permanently mounted, which is quite convenient.

Can you charge a marine battery with a regular car charger?

The answer is yes, you can charge a marine battery with a car battery charger. However, you should not do it on a regular basis. Marine batteries are designed to be charged at a slower rate than car batteries. Charging a marine battery with a car battery charger can damage the battery and shorten its lifespan.May 13, 2022

Can you use any charger for a marine battery?

Do I Need a Special Charger for a Marine Battery? No, the most important thing is that the charger matches the chemistry and voltage of your boat battery. Any charger that does this will work fine. One of the main advantages of marine chargers is that they’re often water resistant.Jun 8, 2022

What happens if you charge a deep cycle battery with a regular charger?

Using a traditional battery charger to recharge your deep cycle battery will not give you the best possible results. This is because excess heat is produced whenever a battery is charging. A deep cycle battery is not designed to handle the rapid charging and extra heat, so it may never reach full capacity.