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Marine Battery Chargers

There are 76 products.
Marine Battery Chargers

Marine Battery Chargers
- The batteries that power your boat are critical to ensuring a safe and fun trip out on the water. It's no fun boating with a poorly charged or dead battery, whether it be your starting boat battery, trolling motor battery, or house battery. This is why it’s highly recommended that boat owners have an onboard charger to help ensure reliable and long-lasting battery power. Choosing the right marine battery charger is key. 

Keep your boat batteries charged with a marine battery charger from Mastervolt, ProMariner, Victron Energy and Guest. Questions or comments on battery chargers for your boat? Check out the FAQ section below for more help choosing the right charger, or contact us here or chat with us below!

  • CTM Inverter / Charger - SC 1200 Series - 12V
    New! Available

    CTM IC-1200 Inverter / Charger - 1200 Watt - 12V - 115V

    40101I

    The CTM IC-1200 12V 1200 Watt Inverter Charger offers grid quality AC power and battery charger in one. Designed with a low profile to be an independent bi-directional inverter/charger. 3-stage charging function. 5 different operating modes (inverter mode, charger mode, power sharing, power generation, and power support). UL and CE certified. Input Voltage: 12V Output Voltage: 115VPart Number: 40101I      

    The CTM IC-1200 12V 1200 Watt Inverter Charger offers grid quality AC power and battery...

    The CTM IC-1200 12V 1200 Watt Inverter Charger offers grid quality AC power and battery charger in one. Designed with a low profile to be an independent bi-directional...

    In Stock: 2$649.00

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  • CTM IC-1200 Inverter / Charger - 24V - 115V
    New! Available

    CTM IC-1200 Inverter / Charger - 1200 Watt - 24V - 115V

    40102I

    The CTM IC-1200 24V 1200 Watt Inverter Charger offers grid quality AC power and battery charger in one. Designed with a low profile to be an independent bi-directional inverter/charger. 3-stage charging function. 5 different operating modes (inverter mode, charger mode, power sharing, power generation, and power support). UL and CE certified. Input Voltage: 24V Output Voltage: 115VPart Number: 40102I       

    The CTM IC-1200 24V 1200 Watt Inverter Charger offers grid quality AC power and battery...

    The CTM IC-1200 24V 1200 Watt Inverter Charger offers grid quality AC power and battery charger in one. Designed with a low profile to be an independent bi-directional...

    In Stock: 2$649.00

    Add to cart
  • Available

    Mastervolt ChargeMaster Plus 12/35-3 Battery Charger

    44310355

    MASTERVOLT CHARGEMASTER PLUS 12/35-3 BATTERY CHARGER

    MASTERVOLT CHARGEMASTER PLUS 12/35-3 BATTERY CHARGER

    MASTERVOLT CHARGEMASTER PLUS 12/35-3 BATTERY CHARGER

    In Stock: 4Reg Price: $623.00 CPlus Price: Login for Pricing Question mark icon
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  • ChargeMaster Plus 12/75-3 CZone - 12V, 75 Amp, 3 Battery Outlets

    Mastervolt ChargeMaster Plus 12V / 75A - 3 Banks CZone Marine Battery Charger - 44310755

    44310755

    The Mastervolt ChargeMaster Plus 12/75-3 CZone is the next generation of battery charger that integrates multiple functions into one single device. Replacing auxiliary chargers, battery isolators, and VSR, ChargeMaster Plus reduces system complexity and cost. Designed for versatility, it charges a maximum of three batteries in a fast and safe way and works anywhere in the world. Models with the addition CZone do not only support MasterBus, but...

    The Mastervolt ChargeMaster Plus 12/75-3 CZone is the next generation of battery...

    The Mastervolt ChargeMaster Plus 12/75-3 CZone is the next generation of battery charger that integrates multiple functions into one single device. Replacing auxiliary chargers,...

    Reg Price: $1,275.85 CPlus Price: Login for Pricing Question mark icon
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  • Mastervolt ChargeMaster Plus 12/100-3 CZONE - 12V, 100 Amp, 3 Battery OutletsPlus 12/100 - 12 V, 100 Amp

    Mastervolt ChargeMaster Plus 12V / 100A - 3 Banks CZONE Marine Battery Charger - 44311005

    44311005

    The Mastervolt ChargeMaster Plus 12/100-3 Battery Charger is the next generation of battery chargers that integrates multiple functions into one single device. Replacing auxiliary chargers, battery isolators, and VSR, ChargeMaster Plus reduces system complexity and cost. Designed for versatility, it charges a maximum of three batteries in a fast and safe way and works anywhere in the world. Models with the addition CZone do not only support...

    The Mastervolt ChargeMaster Plus 12/100-3 Battery Charger is the next generation of...

    The Mastervolt ChargeMaster Plus 12/100-3 Battery Charger is the next generation of battery chargers that integrates multiple functions into one single device. Replacing...

    Reg Price: $1,653.54 CPlus Price: Login for Pricing Question mark icon
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  • ChargeMaster Plus 24/40-3 CZone - 24V, 40 Amp, 3 Battery Outlets
    Available

    Mastervolt ChargeMaster Plus 24V / 40A - 3 Banks CZone Marine Battery Charger - 44320405

    44320405

    The Mastervolt ChargeMaster Plus 24/40-3 CZone is the next generation of battery charger that integrates multiple functions into one single device. Replacing auxiliary chargers, battery isolators, and VSR, ChargeMaster Plus reduces system complexity and cost. Designed for versatility, it charges a maximum of three batteries in a fast and safe way and works anywhere in the world. Models with the addition CZone do not only support MasterBus, but...

    The Mastervolt ChargeMaster Plus 24/40-3 CZone is the next generation of battery...

    The Mastervolt ChargeMaster Plus 24/40-3 CZone is the next generation of battery charger that integrates multiple functions into one single device. Replacing auxiliary chargers,...

    In Stock: 5Reg Price: $974.00 CPlus Price: Login for Pricing Question mark icon
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  • ChargeMaster Plus 24/60-3 CZone - 24V, 60 Amp, 3 Battery outlets
    Available

    Mastervolt ChargeMaster Plus 24V / 60A- 3 Banks CZone Marine Battery Charger - 44320605

    44320605

    The Mastervolt ChargeMaster Plus 24/60-3 CZone is the next generation of battery chargers that integrates multiple functions into one single device. Replacing auxiliary chargers, battery isolators and VSR, ChargeMaster Plus reduces system complexity and cost. Designed for versatility, it charges a maximum of three batteries in a fast and safe way and works anywhere in the world. Models with the addition CZone do not only support MasterBus, but...

    The Mastervolt ChargeMaster Plus 24/60-3 CZone is the next generation of battery...

    The Mastervolt ChargeMaster Plus 24/60-3 CZone is the next generation of battery chargers that integrates multiple functions into one single device. Replacing auxiliary...

    In Stock: 2Reg Price: $1,343.73 CPlus Price: Login for Pricing Question mark icon
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    Add to cart
  • ChargeMaster Plus 24/80-2 CZone - 24V, 60 Amp, 2 Battery outlets

    Mastervolt ChargeMaster Plus 24V / 80A - 2 Banks CZone Marine Battery Charger - 44320805

    44320805

    The Mastervolt ChargeMaster Plus 24/80-2 CZone is the next generation of battery chargers that integrates multiple functions into one single device. Replacing auxiliary chargers, battery isolators and VSR, ChargeMaster Plus reduces system complexity and cost. Designed for versatility, it charges a maximum of three batteries in a fast and safe way and works anywhere in the world. Models with the addition CZone do not only support MasterBus, but...

    The Mastervolt ChargeMaster Plus 24/80-2 CZone is the next generation of battery...

    The Mastervolt ChargeMaster Plus 24/80-2 CZone is the next generation of battery chargers that integrates multiple functions into one single device. Replacing auxiliary...

    Reg Price: $1,898.54 CPlus Price: Login for Pricing Question mark icon
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    Add to cart
  • Mastervolt ChargeMaster Plus 24/110-2

    Mastervolt ChargeMaster Plus 24V / 110A - 2 Banks CZone Marine Battery Charger - 44321105

    44321105

    The Mastervolt ChargeMaster Plus 24/110-2 CZone is the next generation of battery chargers that integrates multiple functions into one single device. Replacing auxiliary chargers, battery isolators and VSR, ChargeMaster Plus reduces system complexity and cost. Designed for versatility, it charges a maximum of three batteries in a fast and safe way and works anywhere in the world. Models with the addition CZone do not only support MasterBus,...

    The Mastervolt ChargeMaster Plus 24/110-2 CZone is the next generation of battery...

    The Mastervolt ChargeMaster Plus 24/110-2 CZone is the next generation of battery chargers that integrates multiple functions into one single device. Replacing auxiliary...

    Reg Price: $2,456.61 CPlus Price: Login for Pricing Question mark icon
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    Add to cart
  • Mastervolt ChargeMaster Plus 24/60 - 24 V, 60 Amp

    Mastervolt ChargeMaster Plus 24V / 40A - 3 Banks Marine Battery Charger - 44320400

    44320400

    The Mastervolt ChargeMaster Plus 24/40-3 is the next generation of battery charger that integrates multiple functions into one single device. Replacing auxiliary chargers, battery isolators and VSR, ChargeMaster Plus reduces system complexity and cost. Designed for versatility, it charges a maximum of three batteries in a fast and safe way and works anywhere in the world. Nominal output voltage: 24 V, Total charge current: 40 Amp, Number of...

    The Mastervolt ChargeMaster Plus 24/40-3 is the next generation of battery charger that...

    The Mastervolt ChargeMaster Plus 24/40-3 is the next generation of battery charger that integrates multiple functions into one single device. Replacing auxiliary chargers,...

    Reg Price: $839.99 CPlus Price: Login for Pricing Question mark icon
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  • Mastervolt ChargeMaster Plus 24/60 - 24 V, 60 Amp 44320600

    Mastervolt ChargeMaster Plus 24V / 60A - 3 Banks Marine Battery Charger - 44320600

    44320600

    The Mastervolt ChargeMaster Plus 24/60-3 is the next generation of battery chargers that integrates multiple functions into one single device. Replacing auxiliary chargers, battery isolators and VSR, ChargeMaster Plus reduces system complexity and cost. Designed for versatility, it charges a maximum of three batteries in a fast and safe way and works anywhere in the world. Nominal output voltage: 24V, Total charge current: 60 Amp, Number of...

    The Mastervolt ChargeMaster Plus 24/60-3 is the next generation of battery chargers...

    The Mastervolt ChargeMaster Plus 24/60-3 is the next generation of battery chargers that integrates multiple functions into one single device. Replacing auxiliary chargers,...

    Reg Price: $1,095.00 CPlus Price: Login for Pricing Question mark icon
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  • Mastervolt 44310750

    Mastervolt ChargeMaster Plus 12V / 75A - 3 Banks Marine Battery Charger - 44310750

    44310750

    The Mastervolt ChargeMaster Plus 12/75-3 is the next generation of battery charger that integrates multiple functions into one single device. Replacing auxiliary chargers, battery isolators and VSR, ChargeMaster Plus reduces system complexity and cost. Designed for versatility, it charges a maximum of three batteries in a fast and safe way and works anywhere in the world. Nominal output voltage: 12V, Total charge current: 75 Amp, Number of...

    The Mastervolt ChargeMaster Plus 12/75-3 is the next generation of battery charger that...

    The Mastervolt ChargeMaster Plus 12/75-3 is the next generation of battery charger that integrates multiple functions into one single device. Replacing auxiliary chargers,...

    Reg Price: $1,045.00 CPlus Price: Login for Pricing Question mark icon
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Marine Battery Charger FAQ

Commonly asked questions to help you choose the right charger.

You need a charger with enough capacity to run the continuous loads on your battery system, like DC refrigeration and lights, plus enough power to float-charge your batteries. Good rule is to have enough amperage to equal sum of the DC loads plus 10 percent of the amp-hour capacity of the batteries.
If you operate your house bank between a 50 % and 85 % state of charge, as many experts recommend, and charge once daily, you should be able to return the 35 % of battery capacity by operating a properly-sized alternator for slightly over an hour. More deeply discharged batteries, or smaller alternators, will require more time. 
Portable chargers work well for smaller boats, where the battery can be easily removed. Owners of larger vessels are better off purchasing on-board marine battery chargers.
Depends on how many batteries you need to charge. You need one bank for each battery on your boat (including starting battery, if appropriate).
Main difference in wiring batteries in series vs. parallel is impact on the output voltage and the capacity of the battery system. Batteries wired in series have their voltages added together. Batteries wired in parallel have their capacities (amp-hours) added together. However, the total available energy (watt-hours) in both configurations is the same.
Amps required depend on the size and type of your battery. A higher amp rating means a faster recharging time. For instance, 15 amps per bank would charge a battery faster than 5 or 6 amps per bank would charge that same battery. Follow the formula above to determine minimum amperage of the marine battery charger required.
The voltage of your boat’s battery charger needs to match the output voltage of your battery. 12V batteries require a 12V charger. Same applies to two 12V batteries in PARALLEL - voltage does not double, you still need a 12V battery charger. However, two 12V battery chargers in a SERIES setup will now double to 24V, and you’ll need a 24V charger. Mismatching voltages between charger and batteries will end up destroying the batteries, and may even cause a fire.
If you have any more questions, just shoot us an email, give us a call, or chat with us below, and we’ll help figure out what marine battery charger would work best for your onboard needs!