Marine & Boat Battery Chargers

Looking for a new boat battery charger? You’ve come to the right place! No more getting caught out with an unexpectedly flat battery – take to the seas with confidence with our quality marine battery charger range from Outback Equipment.   


Common Questions When Buying a Boat Battery Charger

Buying a battery charger for your boat requires a bit of know-how, and we’re going to look at some of the key questions here.


What kind of boat battery charger do I need to buy?

The type of charger you buy really depends on the kind of boat and battery set up you are managing. Basically, you need to have a charger with the output voltage matching the output voltage on your battery.

As an example, if you have a single 12-volt battery, you’re going to be needing a 12-volt charger. If you’ve got two batteries of 12-volts each in a Parallel Setup, then they’re still going to be outputting 12-volts, so you need a 12-volt charger.

If your batteries are set up in a Series, then they’re putting out 24-volts – so you’ll be needing a 24-volt charger.


Does a higher voltage charger charge my batteries faster?

No, it doesn’t. As we mentioned above, you need to make sure your output matches the output on the battery charger. A 24-volt charger won’t charge a 12-volt battery faster – in fact, it’ll destroy your battery, destroy the charger and may start a fire. Check your voltage, and check your charger.


How many amps do I need for my charger?

Again, the ampage for your battery charger will depend on the size and type of your battery. If you have more amps it means that your battery is going to charge up faster. The output of your battery is known as amp hours, and if you want to find out how many amps you need to recharge your battery correctly, you must multiply the amp hours by 10%.

For example, a battery with an amp hour rating of 80 will need a charger with 8 amps or more (Take 80, multiply it by 10% and you get 8).

If you have three batteries with amp hour ratings of 80, then you’ll need a charger with 24 amps or more to charge them correctly (80, multiplied by 10%, multiplied by 3 gives you 24). You can also round up here and get a charger with 25 amps.

If you aren’t sure what size your battery is, be sure to give us a call or check with the battery manufacturer.


How to Choose Your Marine Battery Charger

When shopping for a new boat battery charger, you need to examine your battery and be sure to buy the right charger for your needs. We have a wealth of experience in supplying information and guidance on the right marine battery charger and can help you if you’re stuck – just get in touch with us via phone or email and we can get back to you with an answer.


Make sure that you’re getting the right product for your needs when you shop with Outback Equipment. We’re the outdoor experts based in Brisbane and supplying products across Australia.


Whether you need an on-board charger or a portable charger, we can help with almost any size and style of boat. Marine deep cycle batteries are just one of our many specialities, so take a look at our great range online.



7 Stage Smart Battery Charger MCU 12V 12.0amp

$216.37 $149.98

SKU: PC800

Automatic 12V 8amp 6 Stage Battery Charger



Battery Link 3 Stage Smart Charger 2500ma



Battery Link Battery Charger 2700ma



Battery Link Battery Charger 4000ma



Battery Link Battery Charger 8000ma


SKU: MCU1000

Battery Link Smart Charger 10000ma



Battery Link Smart Charger 20000ma



Battery Link Smart Charger 7000ma



Charger Automatic Maintenance 750mA 12V


SKU: CTM10012

CTEK M100 Marine Battery Charger 12V 7A (BQ10)



Smart Battery Charger 12V 8000mA - Metal Case



Smart Battery Charger 2.5Amp 6/12Volt



Smart Battery Charger 4.0amp 6/12Volt

$440.00 $349.99

SKU: TDR02120

Thunder Battery Charger 20Amp 8 Stage

$145.00 $139.99

SKU: TDR02104

Thunder Battery Charger 4 Amp 8 Stage

$200.00 $174.99

SKU: TDR02108

Thunder Battery Charger 8 Amp 8 Stage