Summer fun has begun! It's a boatin' great day - Save up to 50% Off during our Great Days of Summer Sale.

Marine Battery Chargers

54 Items | 1 of 2 pages
 1 2
FREE SHIPPING! Is today great or what?
Precision On-Board Chargers Longer run times. Shorter charge times. On each bank, you can select your battery type (AGM, gel or flooded lead acid) …
List price: $119.99
Starting at $101.99
In stock
FREE SHIPPING! Is today great or what?
Minn Kota On-Board Marine Battery Chargers
Not for Sale in California. Due to new 2013 requirements adopted by the California Energy Commissions, these chargers are not for sale in California. …
List price: $99.99
Starting at $81.68
In stock
FREE SHIPPING! Is today great or what?
Minn Kota Portable Chargers
Not for Sale in California. Due to new 2013 requirements adopted by the California Energy Commissions, these chargers are not for sale in California. …
List price: $59.99
Starting at $50.99
In stock
FREE SHIPPING! Is today great or what?
On-Board Alternator Charger
Not for Sale in California. Due to new 2013 requirements adopted by the California Energy Commissions, these chargers are not for sale in California. …
List price: $99.99
Starting at $83.92
In stock
FREE SHIPPING! Is today great or what?
ProMariner Pronautic P Series Digital Battery Chargers
All Digital Electronic Charging... Industry recognized with the 2010 IBEX Innovation Award, ProNauticP employs our ProMar Digital Performance …
List price: $332.99
Starting at $276.75
In stock
Clearance Price! Save More Now!
ProTournament Professional Series Battery Chargers
Features: Faster charging 100% output/charging performance 100% battery charge guaranteed Waterproof and Saltwater tested Lightweight & low profile …
List price: $231.59
Starting at $196.85
In stock
FREE SHIPPING! Is today great or what?
ProSport Generation 3 on-board marine battery chargers expanded features include: storage recondition mode, system OK and battery bank trouble status, …
List price: $162.42
Starting at $107.99
In stock
FREE SHIPPING! Is today great or what?
ProSport 1.5 Portable Maintainer
ProSport 1.5 Battery Maintainers Fully Automatic Designed to maintain 12 volt batteries up to 150 amp hours Increase Performance Precision regulated …
List price: $39.99
Starting at $26.99
In stock
FREE SHIPPING! Is today great or what?
Promar1 Series Recreational Marine Battery Chargers
ProMar1 incorporates solid state and fully automatic technology that eliminates the need to use portable battery chargers for charging each battery …
List price: $106.64
Starting at $71.99
In stock
Clearance Price! Save More Now!
ProNautic C3 All Digital Marine Battery Charger
ProNautic employs ProMariner's progressive C3 all digital technology, bolstering intuitive software-based multi-stage charging, communication and …
List price: $599.99
Starting at $307.16
Full StarFull StarFull StarFull StarEmpty Star (1)
In stock
FREE SHIPPING! Is today great or what?
Protournament Elite Series Battery Chargers
ProTournament Elite Series Battery Chargers Designed to deliver maximum charging performance and extend battery life. 100% charge upon completion of …
List price: $43.31
Starting at $26.99
In stock
Lightning Start Lithium Jump Starter - Power Source
The Lightning Start Lithium JumpStarter is small in size but large in power. Weighing less than a pound and small enough to fit anywhere, you can …
Your price:
In stock
Powermania Turbo M-Series Battery Chargers 2-4 bank, 6-30 Amp
Powermania Turbo M-Series Battery Chargers Powermania Turbo M Series offers the fastest 3-stage SMART charge of batteries (3 - 6 hours) using its ' …
Starting at:
Full StarFull StarFull StarFull StarHalf Star (2)
In stock
Powermania Turbo ME-Series Battery Chargers 1 & 2 bank, 6-12 Amp
Powermania Turbo ME-Series Battery Chargers Powermania Turbo ME Series offers a competitively priced quick 3-stage SMART charge replenishing …
List price: $89.00
Starting at:
In stock
Marinco On Board Battery Chargers
Charge Pro™ Battery Chargers These onboard chargers have the same housing and mounting dimensions as our traditional Charge Pro Guest chargers …
List price: $109.99
Starting at:
In stock
ProNautic 12v 120-220vac Battery Chargers by ProMariner
Industry recognized with the 2010 IBEX Innovation Award, ProNauticP employs our Generation 3 ProMar Digital Performance Charging Platform which …
List price: $232.89
Starting at:
In stock
ProMariner Digital Mobile 4 Stage Battery Chargers
Digital Mobile Charge130 Digital Mobile Charge130 alternator to battery on-the-water charging system provides a significant increase in charging …
List price: $623.99
Starting at:
In stock
Prosport Heavy Duty Recreational Series On-Board Marine Battery Charger (Pro Mariner)
 Features: Distributed-On-Demand™ Technology Automatically charge and maintain engine crank battery(s) while sensing and distributing 100% …
List price: $248.99
Starting at:
In stock
Guest 3 Amp Portable Charger/Maintainer
Compact Stud Size. Two stage 3 amp charger keeps batteries in a full charged cOuter Diametertion. Unlike a trickle charger, the float circuit design …
List price: $137.79
Your price:
In stock
Portable Battery Chargers - Guest
Portable Battery Chargers Product Features: Meets all Guest Harsh Enviroment Guideline Lifetime Warranty Against Water Damage 2-Year Limited …
List price: $116.19
Starting at:
In stock
Guest Charge Pro Plus Battery Charger & Alternator Module
COMPLETE SYSTEM TO EXTEND YOUR FISHING TIME! The new Charge Pro PLUS system combines a Guest charger with an alternator power module (VSR) to …
List price: $309.99
Starting at:
In stock
GUEST Intelligent Charging System
Description: Guest Intelligent Choice Battery Charger Systems are the most advanced devices developed by Guest and feature a departure from the …
List price: $154.99
Starting at:
In stock
Mastervolt Dc Master Series Dc-Dc Converters
The voltage required for direct current (DC) can vary considerably onboard a yacht. A bow thruster or a winch installation often works at 24V, but …
List price: $74.89
Starting at:
In stock
Sportsman Series Battery Charger (Dual Pro)
Our customers asked for a series of chargers that were smaller, lighter and economically affordable. The Sportsman Series of chargers answers these …
List price: $325.99
Starting at:
In stock
Recreation Battery Charger (Dual Pro)
Recreation Series battery chargers are an affordable, reliable and safe battery charging system designed for everyday use. The system is engineered …
List price: $121.59
Starting at:
In stock
Pro Charger (Dual Pro)
Approved for Wet Cell and AGM batteries Waterproof, Designed for use in fresh and saltwater Independent outputs Fully automatic / multi stage …
List price: $397.69
Starting at:
In stock
Chargemaster Battery Chargers (Mastervolt)
Mastervolt is known for offering 'The power to be independent' and the ChargeMaster series of fully automated battery chargers certainly lives up to …
List price: $409.00
Starting at:
In stock
Battery Isolators Mate Ig (Mastervolt)
The Battery Mate is the ultimate solution for charging several batteries simultaneously and is compatible with any type of alternator/battery charger, …
List price: $315.00
Starting at:
In stock
Xantrex TRUECharge Battery Chargers
Xantrex Products
List price: $180.00
Starting at:
In stock
Xantrex XC Series Battery Chargers
Designed primarily for marine applications, Xantrex XC Battery Chargers are versatile enough to be used in a wide variety of conditions and …
List price: $42.00
Your price:
In stock
Xantrex TrueCharge2 12v 3-bank Battery Chargers; 120v & 220v compatibility
The True Charge 2 (TC2) Series by Xantrex are micro-processor controlled for quick, accurate charging of both (marine) deep-cycle batteries, starter …
List price: $204.75
Starting at:
In stock
Xantrex TrueCharge Battery Chargers 24v, 120v / 220v Source
TRUECharge2 battery chargers are highly versatile and can be mounted in multiple positions, thanks to their inherent drip-free design characteristics. …
List price: $450.00
Starting at:
In stock
54 Items | 1 of 2 pages
 1 2
Free Shipping! $100 Rebate Available!
Minn Kota
Blue Sea Systems
Power Source Batteries
Boating Know How
The in's and out's of battery chargers

All About Battery Chargers

Here you can learn all in's and out's of battery chargers ... read more Common Charging Types:
  • On-board battery chargers are battery chargers that are mounted to the boat. These chargers use an AC power source (most commonly a standard wall-outlet in the garage or shorepower station), with the charger transferring the power into the DC current your batteries need
  • Battery Maintainers & Trickle Chargers are terms used to describe a battery charger that provides a slow and steady charge. The most common use of these chargers are to prevent a battery from dying when it's not in use for extended periods of time.
  • Charging Relays are used to route and manage alternator generated current. Charging relays also have 'battery isolators', which isolate the charges to each battery (circuit). Battery Isolators have the same function as charging relays, but usually don't include the management of the alternator-generated current.
  • Battery to Battery Chargers are devices used to transfer current from one battery to another

Battery Banks:
Each battery you charge will connect to one of the battery chargers banks. If you need to charge 3 batteries at one time, you will need a battery charger with a minimum of three banks. It's a good idea to get a charger with the number of banks you foresee yourself using during the lifetime of the battery charger.

Output voltage rating:
Most Battery Chargers are rated for 12v batteries, though 24, 36v, and 48v are not uncommon. Some battery-chargers have the ability to charge multiple ratings of batteries. Simply choose an option that is rated for your batteries voltage rating.

Input voltage ratings:
Voltage ratings are measured in ranges, but tend to revolve around 120v and 220-240v, the most common voltage outputs world wide. In North America, you'll want to pick an option that includes 120v in it's range. Many Chargers are rated to cover AC out put worldwide (100-250v); a wise choice for the avid traveler

Amperage rating:
Higher amp ratings will mean a faster charge, and are commonly rated by total amps, using the sum of amps provided per bank. For example, a 3-bank charger that provides 5 amps per a bank is rated at 15 amps total. However, not all banks have the same output. For example the ProMite on-board battery charger by ProMariner includes an option that provides a total of 13amps using three banks; 2x banks are rated at 5amp, 1x bank is rated at 3amps. This would commonly be written out as '5/5/3'

Battery compatibility:
Make sure to pick a battery charger that is compatible with your type of battery. Most chargers will work with standard lead-acid (wet cell) batteries and some chargers are compatible with almost all battery types used in the marine industry. Regardless, verify the charger is compatible with your battery type.

There are many features to pick from when selecting a battery charger. Most will come standard with an automated 3-stage charging system to provide efficient charge & prevent over-charging, as well as feature a rugged construction designed to withstand the ruggedness marine environment.

***Notice the 'Refine Search' feature on the sidebar. It will allow you to quickly filter down to the product options that will work for your boat's needs and spend more time on price and feature comparisons.

Having a reliable Battery Charger that's designed for your application is one of the most important factors in establishing and maintaining a safe and reliable boat. This makes getting ar reliable battery charger equipped to meed the needs and specs of your boat fundamental. We've tried to make finding the perfect battery for your boat easy buy offering only industry-recognized brands such as Guest, Promariner, Minn Kota, Charles, PowerFilm, and Mastervolt. Additionally, our Refine Search side-bar makes it easy to find the battery you needs in regards to voltage, number of banks, brands, charger type, and amps. Lastly, be confident with our Low Price Guarantee that you'll be getting the best price on the charger you decide to go with.

read less

Blue Sea Systems Tech Tip: Charge Coordination Explained

Here you can learn how charge coordination works with our Tech Tip's thorough explanation. ... read more Infographic: Tips for charge coordination explained

When charging batteries, the alternator plays the smallest part in the process. The alternator fulfills its duties in charging the battery, but the AC battery charger will maintain the charge. As the AC battery works to maintain the charge, this three-step charging stage must take place.

Bulk Charge

Bulk charge is a charge form that sends currents to batteries at the highest and safest capacity rate. It will accept voltage charges up to between 80 and 90%. The voltage amount usually ranges between 10.5 volts and 15 volts. Depending on the application, there might be limits on the maximum current that can be applied.

Absorption Charge

Absorption charge is the stage where voltage levels tend to remain the most consistent and then eases into an internal resistance that increases as it charges. The voltages will usually have risen to 14 to 15 volts.

Float Charge

The batteries, at this point, will have reached full capacity. The voltages will decrease their levels between 12 and 13 in order to prolong the life of the battery. Then a process known as pulse width modulation (PWM) takes control, in which, it seeks out tiny voltage drops in the battery and sends out short charging cycles to the battery. By the end of this stage, the voltage should be maintained at a level between 13.02 and 13.20 volts.

read less
blue seas p12 battery charger

Blue Seas P12 Battery Charger (Video)

A demonstration of the Blue Sea Systems P12 Battery Charger, presented by Blue Sea Systems. ... read more

Video Transcript

Hi! Chuck Hawley with Blue Sea Systems.

You know as boats becoming increasing more complicated, their battery banks get larger and larger. And with the new chemistries of batteries you get more reliable batteries but at a higher cost.

To solve your battery management problems, Blue Sea Systems has introduced the P12 chargers, available in a 25 amp or for larger vessels of 45 amp bottle.

These are pre-programmed for the four most common chemistries of batteries; flooded lead acid batteries, gel batteries, AGM batteries and TPPL batteries.

So built inside of this is the logic to precisely charge those batteries that both the bulk, absorption float stages. But Blue Sea Systems has gone one stage further; they actually have the fourth stage which they call “pre-float”.

You know most battery chargers will take their full output and put it into the batteries which we call “bulk”. They reach a certain voltage and then they taper off the ampere overtime without overcharging during absorption.

But if you have batteries of different sizes, say a large house bank and smaller starting battery bank; the large house bank may not be fully charged but the starting batteries had enough.

The P12 charger has the smarts to lower the voltage on the smaller banks of batteries, what we call pre-float and hold them at that voltage which is non-injurious until all the batteries are charged and then drop it down to float. This can greatly increase the lifetime of smaller batteries so that they’re not overcharged during a normal charge cycle.

And you know, with the development of these new battery chemistries, a lot of the battery manufacturers have very specific recommended charge voltages and they may not be exactly what the pre-set voltage sets. So the P12 charger is actually fully customizable. You can set the absorption voltage, the float voltage and the amount of time spent in absorption to perfectly match your battery manufacturer’s recommendations.

So rather than going with the generic setting, if you want, you can reset it to a custom setting to absolutely optimize your battery charging.

To maximize the performance and lifetime of your batteries, the P12 charger is a great choice. It’s designed, assembled and tested in the United States and it’s backed by Blue Sea Systems Industry leading 5 year warranty.
read less
Over 35,000 boat parts & accessories now on sale!
Shop the Great Days of Summer Sale and save!