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Waterproof Marine Battery Chargers & Accessories

Marine battery chargers are an essential piece of equipment for any serious boater, outdoors man or home owner dealing with a wet basement. There are fully submersible waterproof chargers, water resistant only versions, multi-output units, 12V vs. 24V vs. 36V, 110-220 AC volt machines and chargers with varying amperage ranges. Multiply that list by the likes of Pro Charging Systems (Dual Pro), Marineco Guest, Noco Genius, Minn Kota, Pro Mariner and a host of other manufacturers. With so many options it can quickly become overwhelming! But how do you go about assessing what best meets your needs? Continue reading the side bar to learn more…

Not every charger designated ‘safe’ for the maritime environment will be waterproof. Some are simply designed to withstand the harsh environment up to certain limits while others will still operate while completely submersed in water.

Understanding the IP Rating

The Ingress Protection Rating or IP rating refers to the degrees of protection provided against the intrusion of dust and water. The first number classifies solids like dust and dirt. The second number refers to water intrusion. Generally speaking the highest number for solids is 6, while the second digit goes as high as eight.

An onboard marine grade charger will be assigned an Ingress Protection Rating between 61 and 68. In most boating or damp environment scenarios you need consider no less than a weatherproof IP64 rating.

IP68 is the highest rank you will encounter when searching for a waterproof charger (Well actually, there is a special steam-jet rank of IP69K, but unless you plan to power you’re your bass boat charger with an intense high powered steam jet then you need not worry about this rating). This means the equipment can be immersed to a depth defined by the manufacturer exceeding 1 meter and is probably hermetically sealed.

IP67 rating is second highest and can be immersed in water up to a depth of about 1 meter.

IP66 is the third highest rating. This unit is NOT cleared to be used under water. It can withstand a jet of water from a 12.5mm nozzle in any direction.

A rating of IP65 is fourth. It can withstand a jet of water from a 6.3mm nozzle in any direction.

IP64 is the fifth highest metric and it states that water splashing against the enclosure from any direction shall have no harmful effect.

IP61, IP62 and IP63 offer minimal protection from dripping water and light spray up to 60 degrees from vertical. These ARE NOT considered water proof and AT BEST water resistant within certain parameters.

Best Marine Battery Charger

Yes, we have our opinion as to who makes the finest marine charger. We looked at charge profile, long-term viability, popularity and IP rating.

We wouldn’t really consider this charger portable and it is definitely not a solar charger. From firsthand experience and user feedback we feel the best onboard marine charger is the dual bank SS2 from Pro Charging systems.

The SS2 has been widely adopted as an OEM and replacement charger in the boating community. It utilizes the amazing Delta Volt charge profile developed nearly a decade ago by Pro Charging Systems. This charge profile is in a league of its own and means you won’t be buying batteries as often!

Furthermore this 2 bank charger is fully waterproof with an IP68 rating and the brand never has mechanical issues (i.e. warranties). The 10A per bank output is just about perfect for the vast majority of weekend fisherman. The old adage ‘you get what you pay for’ holds true. If you are in the market for a 12V or 24V trolling motor battery charger you need to consider the SS2 onboard marine battery charger.

GCP1 Noco Genius AC Port Plug Side Profile Open
  • Chemistry:No
  • Warranty:1 Year
SS2 Dual Pro Waterproof Battery Charger 2 Bank 10A
  • Chemistry:Lead Acid
  • Dimensions(in):9.25 x 8 x 4.25
  • Warranty:3 Year
GENM1 profile
  • Chemistry:Gel, Lead Acid
  • Warranty:5 Year
The Weego 44

Weego 44 Water Resistant Jump Starter

$169.99

$149.99

  • Chemistry:Li-Polymer
  • Dimensions(in):6.5" x 3.37" x 1.5"
  • Capacity Amp Hours:12000 mAh
  • Warranty:18 Month
MotoBatt 1.0A Water Boy Charger
  • Chemistry:Lead Acid
  • Warranty:5 Year
Dual Pro SS1 Sportsman 10 Amp Charger
  • Chemistry:Lead Acid
  • Dimensions(in):6.38 x 8 x 4.25
  • Warranty:3 Year
Dual Pro RS1 12 Volt Battery Charger
  • Chemistry:Lead Acid
  • Dimensions(in):6.5 x 4.5 x 3.0
  • Warranty:2 Year
NOCO Genius 12 Volt 8 Step Smart Battery Charger
  • Chemistry:Gel, Lead Acid
  • Dimensions(in):6 x 5.1 x 2.5
  • Warranty:3 Year
Dual Pro Charge On The Run CRS1 Waterproof Charger
  • Chemistry:Lead Acid
  • Dimensions(in):6 x 5.5 x 4
  • Warranty:3 Year
Waterproof Power Tender Plus 12 Volt 5 Amp - Deltran
  • Chemistry:Lead Acid
  • Dimensions(in):5 x 5 x 2
  • Warranty:3 Year
Noco GB40 Jump Starter
  • Chemistry:Lithium-Ion
  • Dimensions(in):6.6 x 3.2 x 1.7"
  • Capacity Amp Hours:6400 mAh
  • Warranty:1 Year
GENM2 with wiring
  • Chemistry:Gel, Lead Acid
  • Warranty:5 Year
Dual Pro 6A 2 Bank Waterproof Battery Charger
  • Chemistry:Lead Acid
  • Dimensions(in):7.25 x 6.5 x 3.0
  • Warranty:2 Year
Dual Pro Charger 2 Bank 15 Amp

Dual Pro Charger 2 Bank 15 Amp

$322.00

$299.99

  • Chemistry:Lead Acid
  • Dimensions(in):9.5 x 8.25 x 6
  • Warranty:3 Year
NOCO Genius 2 Bank 10 Amp Smart Charger 12-24 Volt
  • Chemistry:Gel, Lead Acid
  • Dimensions(in):7 x 6 x 2.5
  • Warranty:3 Year
Dual Pro Charge On The Run CRS2 Waterproof Charger
  • Chemistry:Lead Acid
  • Dimensions(in):6 x 5.5 x 4
  • Warranty:3 Year
24 Volt 2.5 Amp Waterproof Power Tender Plus - Deltran
  • Chemistry:Lead Acid
  • Dimensions(in):5 x 5 x 2
  • Warranty:3 Year
Noco Genius GB70 Boost HD
  • Chemistry:Lithium-Ion
  • Dimensions(in):8.8 x 6.0 x 2.8"
  • Capacity Amp Hours:14850 mAh
  • Warranty:1 Year
SS3 Dual Pro Battery Charger 3 Bank 10 Amp
  • Chemistry:Lead Acid
  • Dimensions(in):11.25 x 8 x 4.25
  • Warranty:3 Year
Dual Pro 6A 3 Bank Marine Battery Charger
  • Chemistry:Lead Acid
  • Dimensions(in):10.25 x 6.5 x 3.0
  • Warranty:2 Year
Dual Pro Charger 3 Bank 15 Amp

Dual Pro Charger 3 Bank 15 Amp

$435.00

$409.99

  • Chemistry:Lead Acid
  • Dimensions(in):13 x 8.25 x 6
  • Warranty:3 Year
3 Bank 10 Amp 12-36 Volt NOCO Genius Smart Charger - GEN3
  • Chemistry:Gel, Lead Acid
  • Dimensions(in):11 x 7.3 x 2.9
  • Warranty:3 Year
Deltran Waterproof Battery Tender International
  • Chemistry:Lead Acid
  • Dimensions(in):4.2 x 2.8 x 1.4
  • Warranty:3 Year
NOCO Genius 12-48 Volt Smart Charger - 4 Bank
  • Chemistry:Gel, Lead Acid
  • Dimensions(in):11 x 7.3 x 2.9
  • Warranty:3 Year
Dual Pro Charger 4 Bank 15 Amp - PS4

Dual Pro Charger 4 Bank 15 Amp - PS4

$555.00

$499.99

  • Chemistry:Lead Acid
  • Dimensions(in):15.78 x 8.25 x 7.25
  • Warranty:3 Year
SS4 Dual Pro Waterproof Boat Charger 4 Bank 10A
  • Chemistry:Lead Acid
  • Dimensions(in):14.25 x 8 x 4.25
  • Warranty:3 Year
Dual Pro Charger 3 Bank 15 Amp
  • Chemistry:Lead Acid
  • Dimensions(in):13 x 8.25 x 6
  • Warranty:3 Year
Dual Pro Charger 4 Bank 15 Amp - PS4
  • Chemistry:Lead Acid
  • Dimensions(in):15.78 x 8.25 x 7.25
  • Warranty:3 Year