5 Best Marine Battery Charger 2018 | Buying Guide & Reviews

You’ll find many types of battery for your boat like- AGM, Gel, Lead Acid and Lithium Ion. Each technology has their own standard charging profile. Following the charging profile of the battery will help you to maintain the health of the battery.

Choosing the right one can be difficult as everyone claims their charger is the best. Maybe they are right but you can’t buy any one of them randomly without knowing that will it be really good for your battery or not. Because different types of battery need a different charger.

So what best boat battery chargers should be used? To answer your question, here are the top five best marine battery charger that will get rid of any worries you might have about selecting a charger.

Hope this guideline will help you to pick the proper charger for your marine battery.



Shipping Weight



Schumacher SSC-1000A

3 pounds

3.3 x 10.8 x 7.5 inches

NOCO Genius G750

4 pounds

10.5 x 10 x 4 inches

Editor's Choice

NOCO Genius GENM2 8

5.8 pounds

7.9 x 2.2 x 5.5 inches

MinnKota MK 210D

11 pounds

7.5 x 11.5 x 4 inches

NOCO Genius G4

2.7 pounds

9.3 x 9.4 x 2.5 inches

Features of a Good Marine Battery Charger

Choosing the right onboard charger is really difficult. This is why I’m highlighting on some must have features that will help you to pick one from above list.

1. Type of Battery: 

Before buying a new charger, you must know about the type and specification of the battery you are using. Try to know about amp/ hour capacity, input voltage and other specification. Once you’ve figured out all of these, you can easily choose the right charger.

2. Durability & Safety: 

You must check for durability and safety features in the charger. It must be waterproof and also eliminate sparkling and possibility of potential shock.

Moreover, the charger must comply with ABYC safety standards along with other safety features.

3. Battery Voltage: 

The charger you buying must provide the voltage required for your battery.

4. Number of Banks: 

Each of your 12V battery can be charged if the charger has enough banks. Generally, a 3 bank charger can charge a 24V trolling motor & 12V battery. If you are running a 36V motor, you need a 4 bank to cover the motor and cranking battery.

5. Recovery Type: 

Recovery time means the required time your battery needed to get fully recharge after draining all charge. A top quality charger will recharge your vessel in 3 to 5 hours others can take 6 to 12 hours. It is up to you to choose which one you need. If you fish multiple times in a day, you need the faster one.

6. Power Source of the charger: 

Powerful marine inverter can the best solution to charge your batteries while you are out at sea.

Top 5 Marine Battery Charger -  Reviews In 2018

1. Schumacher SSC-1000A SpeedCharge 2/6/10 Amp Battery Charger

Schumacher SSC-1000A  is a battery charger that weighs 11.5 pounds with a dimension of 3.3 x 10.8 x 7.5 inches. It has an electronic push button which gives you the option to view the display mode, charge rate and battery. One of the unique features of Schumacher SCC-1000A is that it diagnoses problems with battery and charging system. 

Its digital meter shows the charge status and test results of the diagnosis done. Its 10-amp fast charge is able to monitor battery condition and adjust its charge rate. No need to look for a charger that can cater to small batteries.

Schumacher SSC-1000A also has a 2-amp slow charge which helps charge small batteries or maintain large ones for motorcycles, snow mobiles, and lawn tractor batteries. If you’re looking for a charger that can diagnose problems and cater to small and big batteries, then Schumacher SSC-1000A might be just the best battery charger you need.

What we liked

  • Combined Digital Meter To Display Battery Status;
  • Slow & Fast Charging Mode Available;
  • Self-adjustment Feature To Prevent Battery Damage;
  • System Test Capability Allow You To Diagnose The Problems;

What we didn't like

  • Noisy & Always Active Cooling Fan;

2. NOCO Genius G750 6V/12V .75A UltraSafe Smart Battery Charger

NOCO Genius G750 is a battery charger designed for safety. With its lightweight and compact design, it is considered the most advanced charger ever. NOCO Genius G750 is one of the best boat battery chargers on the market. NOCO Genius G750 can charge lead-acid batteries reaching to 30Ah. Its cutting-edge Technology charges 2x faster than traditional battery chargers. This cuts off the waiting time for the batteries to be fully charged.

It is also streamlined, compact and lightweight which means taking it with you will be a breeze.

G750 also easily mounts into any AC outlet. Its safety features prevents unnecessary inconveniences and instead offers a peace of mind. In need of a battery charger that can decide for itself? Then NOCO Genius G750 will let you finish your tasks as it can independently get its task intelligently done.

What we liked

  • Compact Design And Extremely Lightweight;
  • Spark-proof And Overcharge Protection;
  • Super Fast Charging System And Water-resistant;
  • Superb Performance;

What we didn't like

  • Imperfect Documentation;

3. NOCO Genius GENM2 8 Amp 2-Bank Smart On-Board Battery Charger

NOCO Genius GENM2 8 Amp 2-Bank is a 2.7-pound, 9.3 x 9.4 x 2.5-inch, streamlined, ultra-compact, portable and extraordinarily lightweight battery charger. It has holes for mounting with a base made of rubber that prevents slipping and scratching. This feature makes the charger UV and water-resistant. NOCO Genius GENM2 has a cutting edge technology which makes charging faster than other battery chargers.

Editor's Choice

It can repair damaged batteries and can charge lead-acid and lithium-ion batteries. GENM2 also maintains various types of automotive, and other batteries with its 1.1A/bank. A cousin of NOCO Genius G750, GENM2 also offers amazing safety features making it one of the best 2 bank marine battery chargers.

It has LED indicators that provides information about the problem diagnosed even in maintenance mode. In need of a battery to keep you company on water? This NOCO Genius GENM2 8 Amp 2-Bank Waterproof Smart On-Board Battery Charger will not fail.

What we liked

  • Fast Charging Technology That Allows You To Charge Battery 2x Faster;
  • Advanced Recovery Mode To Repair Damaged Part Of Battery;
  • Sleek Design, Spark-proof And Water Resistant;

What we didn't like

  • No noticeable cons;

4. MinnKota MK 210D On-Board Battery Charger

MinnKota MK 210D is the best onboard marine battery charger. Weighing at 11 pounds and having a dimension of 11.5 by 7.5 by 4 inches, this battery charger is also a waterproof, shock- and vibration-resistant. MK 210D’s digitally controlled micro-processor design protects batteries so your length of stay in the water can be extended. Automatic features are what sets this charger apart from others. 

Its automatic multi-stage charging ensures you have a full charge every time. 

It also has an automatic temperature compensation. This features delivers fast charging and protects from overcharging. Being tested with its reaction to saltwater and its ability to resist corrosion, you can definitely take this with you on the water.

 MK 210D also offers on-board mounting which saves you the hassle of traditional portable chargers. If you’re looking for a hassle free charger that you can take on-board, then MinnKota MK 210D On-Board Battery Charger got you covered.

What we liked

  • Faster Charging In High Temperature;
  • Shock And Vibration Resistant;
  • Automatic Shutdown Features Increase Battery Life;

What we didn't like

  • Little Bit Large And Heavy;

5. NOCO Genius G4 6V/12V 4.4A 4-Bank UltraSafe Smart Battery Charger

NOCO Genius G4 is the best trolling motor battery on the market. Only weighing 2.7 pounds and having a dimension of 9.3 x 9.4 x 2.5 inches this battery charger can maintain different types of automotive and other batteries with its 1.1A/Bank. These maintenance are proven safe for your batteries. Its design is streamlined, compact and incredibly lightweight.

NOCO Genius G4 also charges with double speed faster than ordinary chargers cutting your waiting time in half. Because of its technology, G4 also offers automatic minimizing of energy consumption.

This feature also offers spark-proof technology, and others such as reverse polarity and protection against overcharging. G4 likewise have LED indicators that provide feedback and information.

 All of these even when in maintenance mode. NOCO Genius G4 offers all these plus mounting holes and a base made of rubber. No slipping, no scratches. G4 remains UV and water-resistant even when exposed to unfavorable conditions.

What we liked

  • Sleek Design, Portable, And Lightweight;
  • Excellent Performance And 2x Faster Charging;
  • Safe Charging And Overcharge Protection;
  • UV And Water Resistant;
  • Damaged Battery Repearing Feature;
  • Impressive Battery Status Indicator;

What we didn't like

  • Too Fast Power Up Time;
  • Some Charge Is Required To Begin Repairing Process;

How to Charge a Marine Battery

Charging your marine battery is quite simple and easy. You only need to follow these simple process-

  • Remove the battery from the box, switch it off and clean it.
  • After cleaning connect the charger clips to your battery’s terminals.
  • Once both your battery and charger are connected, switch on the charger and let it charge the battery.
  • When your battery is fully charged, switch the charger off and remove the clips from battery terminals.

Frequently Asked Questions (FAQ):

Is it able to jump start dead car batteries?

No, it is not designed to do a jump starter. it cannot instantly do that but can do it over time. it is mainly battery charger so it will charge your car battery. When the battery gains enough power to start up, then you can start your car by the battery. If you want to do it instantly, use a jump starter.

Is there ON/OFF switch?

No, there is not any ON/OFF switch. You just need to plug it to the power source and connect charging cable to the battery. That’s all.

How long is the cable?

Generally, both charging and power cables are six to eight ft. long.

Do these types of chargers protect the batteries against the accidental polarity reversal?

Yes, that’s why they are important. They check reverse polarity before starting to protect your batteries.

Can it charge the car batteries under freezing temperature to start the car?

Yes, it can.

Can it be used in VRLA batteries?

Yes, it can be & it works fine.

Is it able to regulate voltage?

Simply yes. It is a switch-mode float and smart charger as well as battery maintainer. It’ll regulate the amperage and voltage that delivered to the batteries until the batteries are fully charged. After being charged fully it will regulate the charge of the batteries as needed as long as it is left connected to the battery.

The Bottom Line

These are top 5 marine battery charger out there. Choosing any one of these will definitely make you feel like you have bought something worthy of your time and money. Never again will you have to wonder about what batteries to buy. Then again, precautionary measures are advised to be able to fully take advantage of these products.

But even you have the best charger, you need to be careful about your marine battery. Such as, don’t ever let it over or undercharged or never mix your old batteries with the new one.

If you have the best charger and practice to follow these simple tips, both will enhance the lifetime of your battery.

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