The 10 Best Marine Battery Chargers

Updated July 28, 2018 by Quincy Miller

We spent 26 hours on research, videography, and editing, to review the top choices for this wiki. There's nothing worse than finally getting out to the lake after a hard and stressful week, preparing to launch, and then ... nothing happens when you try to start your boat. If you have one of these marine battery chargers on board, however, that won't be an issue, as they'll keep your boat juiced up and ready to go anytime you are. When users buy our independently chosen editorial picks, we may earn commissions to support our work. Skip to the best marine battery charger on Amazon.

Best High-End

★ ★ ★ ★

SEE ON AMAZON

ebay auctions

Best Mid-Range

★ ★ ★ ★

SEE ON AMAZON

ebay auctions

Best Inexpensive

★ ★ ★ ★

SEE ON AMAZON

ebay auctions

10. Schumacher XCS15 SpeedCharge

The Schumacher XCS15 SpeedCharge self-adjusts its charging rate to keep your batteries in peak condition and reduce the risk of damage. It also boasts a 2-amp slow-charge mode that's perfect for juicing up smaller batteries or for simply maintaining larger ones.

Automatic voltage detection
Led lights up when fully charged
Clamps corrode quickly

Brand	Schumacher
Model	XCS15
Weight	2.9 pounds
Rating	4.2 / 5.0

MORE PICTURES

SEE PRICE ON AMAZON GET IT ON EBAY

9. Guest 2606A

Anyone who doesn't want to leave their charger on the boat full-time should consider the Guest 2606A, as it's a portable model that's easy to take along when you go home. Weighing in at just three pounds and only 15 inches tall, it can also be stored without much hassle.

Can be left on for a long time
Good for pontoon boats
Short cord length

Brand	Guest
Model	2606A
Weight	3.5 pounds
Rating	3.8 / 5.0

MORE PICTURES

SEE PRICE ON AMAZON GET IT ON EBAY

8. Noco Genius G3500 UltraSafe

If you have a compact boat, the Noco Genius G3500 UltraSafe may be all you need. It charges 6- and 12-volt batteries, which is perfect for small vessels or for keeping large ones topped off. If you want to resurrect a dead deep cycle battery, though, be prepared to wait.

Four charge-level lights
Good budget option
Clamps are weak

Brand	NOCO
Model	G3500
Weight	2 pounds
Rating	3.8 / 5.0

MORE PICTURES

SEE PRICE ON AMAZON GET IT ON EBAY

7. BMK BlueMickey

You might find that the BMK BlueMickey will become your constant companion, as in addition to your boat it can juice up lawnmowers, motorcycles, electric vehicles, and much more. While it can revive dead batteries, it's probably best if you use it as a trickle charger.

Pulse function prevents overcharging
Lightweight and easily portable
Gets hot with extended use

Brand	BMK BLUEMICKEY
Model	pending
Weight	1.8 pounds
Rating	3.8 / 5.0

MORE PICTURES

SEE PRICE ON AMAZON GET IT ON EBAY

6. Black+Decker BC2WBD

The Black+Decker BC2WBD is completely sealed from water, dust, and debris, enabling it to withstand just about any conditions you can throw at it. You can hook it up using either the DC accessory plug, terminal rings, or clamps, making it both versatile and convenient.

Hanging hook and magnetic backing
Great for car batteries too
Not ideal for completely-dead units

Brand	BLACK+DECKER
Model	BC2WBD
Weight	1.8 pounds
Rating	4.2 / 5.0

MORE PICTURES

SEE PRICE ON AMAZON GET IT ON EBAY

5. Minn Kota On-Board 330D

The Minn Kota On-Board 330D is a three-bank model that boasts 10 amps per bank, and works well with flooded lead-acid batteries. It is equipped with a microprocessor that's designed to protect your cells, letting you spend more time out on the water.

Clear and helpful instructions
Six-foot cables
Very heavy and bulky

Brand	Johnson Outdoors
Model	034796
Weight	13.7 pounds
Rating	4.0 / 5.0

MORE PICTURES

SEE PRICE ON AMAZON GET IT ON EBAY

4. Noco Genius GENM3

If years of exposure to saltwater have left your batteries in bad shape, the Noco Genius GENM3 can help bring them back to life. It has an advanced recovery mode that repairs damage, and even deeply discharged and sulfated batteries can benefit from its pulse charging.

Won't create sparks
Works on all lead-acid models
Charges extremely rapidly

Brand	NOCO
Model	GENM3
Weight	8.9 pounds
Rating	4.5 / 5.0

MORE PICTURES

SEE PRICE ON AMAZON GET IT ON EBAY

3. ProMariner 43012 ProSport

The ProMariner 43012 ProSport will not only charge your batteries, but it will continue to monitor their power levels to ensure that they're always fully juiced. It also sports an energy saver mode to make sure that it's not boosting them unnecessarily.

Completely waterproof
Prewired for simple installation
Two battery banks

Brand	ProMariner
Model	43012
Weight	6.1 pounds
Rating	4.8 / 5.0

MORE PICTURES

SEE PRICE ON AMAZON GET IT ON EBAY

2. Guest ChargePro

The Guest ChargePro boasts over-current, over-voltage, and over-temperature protection, making it one of the safest options available. It even has various inline fuses to keep your DC wires safe, so that it can provide you with years of faithful service.

Clear led display
Stays cool while in operation
Also works well in rvs

Brand	Guest
Model	2711A
Weight	5.7 pounds
Rating	4.9 / 5.0

MORE PICTURES

SEE PRICE ON AMAZON GET IT ON EBAY

1. Minn Kota Precision

Available with anywhere from one to four banks, the Minn Kota Precision is your best bet for convincing a battery to come back to the land of the living. It's able to quickly resuscitate sluggish power cells, even when voltage to the charger is flagging.

Keeps voltage on banks well-matched
Red indicator warning light
Can be mounted easily

Brand	Minn Kota
Model	1833300
Weight	15.3 pounds
Rating	4.7 / 5.0

MORE PICTURES

SEE PRICE ON AMAZON GET IT ON EBAY

Related Wikis

Top 10 Marine Coolers of 2019 | Video Review

Top 7 Marine Power Cords of 2019 | Video Review

Top 9 Marine Two Way Radios of 2019 | Video Review

Top 8 Marine Chartplotters of 2019 | Video Review

See all boating wikis »

help support our research

Last updated on July 28, 2018 by Quincy Miller

Quincy is a writer who was born in Texas, but moved to Los Angeles to pursue his life-long dream of someday writing a second page to one of his screenplays.

Thanks for reading the fine print. About the Wiki: We don't accept sponsorships, free goods, samples, promotional products, or other benefits from any of the product brands featured on this page, except in cases where those brands are manufactured by the retailer to which we are linking. For our full ranking methodology, please read about us, linked below. The Wiki is a participant in associate programs from Amazon, Walmart, Ebay, Target, and others, and may earn advertising fees when you use our links to these websites. These fees will not increase your purchase price, which will be the same as any direct visitor to the merchant’s website. If you believe that your product should be included in this review, you may contact us, but we cannot guarantee a response, even if you send us flowers.