Shop Products in USA

ProMariner
51805 5' Universal DC Cable Extender,Black/Red
4.70
(90 reviews)
$24.95
Delivery Wed, Sep 10 Ships to Canada

Guest
2707A Guest On-Board Battery Charger 8A / 12V, 2 Bank, 120V Input
4.70
(2 reviews)
$114.83
Delivery Wed, Sep 10 Ships to Canada

Pro Mariner Pro Nautic 1250 12 Volt 50 Amp 3 Bank Charger
4.50
(65 reviews)
$763.32
$72.80 delivery Sep 12 - 19

NOCO
Genius GENPRO10X2: 2-Bank, 20A Onboard Battery Charger - 10A Per Bank, 12V Waterproof Marine Charger with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium Batteries
4.70
(2 reviews)
$224.95
Delivery Wed, Sep 10 Ships to Canada

ProTournament Elite 3 240 24 Amp 4-Bank Battery Charger
3.00
(4 reviews)
$389.99
Delivery Sat, Sep 13 Ships to Canada

Upgraded 3 Bank Marine Battery Charger 10X3, 30A (10A/Bank) - 12V Waterproof Onboard Battery Charger, Battery Maintainer & Desulfator for SLA/AGM, Lithium (LiFePO4), Calcium & Deep-Cycle Battery
4.60
(356 reviews)
$149.99
Delivery Wed, Sep 10 Ships to Canada

ProMariner
ProMariner builds marine-grade onboard chargers and power accessories that thrive in salt, spray, and vibration. Multi-bank designs independently manage house and starting batteries, automatically allocating amperage where it’s needed. With pure-sine charging profiles for flooded, AGM, gel, and modern lithium banks, ProMariner streamlines life at the dock and at anchor. Waterproof housings, corrosion-resistant hardware, and intuitive status indicators make setup and diagnostics simple for anglers, sailors, and pontoon owners who don’t want to babysit batteries.
About ProMariner
ProMariner: Marine-Grade Onboard Charging You Can Trust
Salt. Spray. Vibration. Heat. A boat is a brutal test for any electrical device—and that’s exactly where ProMariner lives. From bass boats to blue-water cruisers, ProMariner onboard chargers keep house and starting batteries topped, balanced, and ready. Multi-bank designs let you charge two, three, or more batteries at once, automatically distributing available amperage to the bank that needs it most. Dockside or underway, it’s charging that understands how boats actually work.
Why Marine-Grade Matters
Household chargers can’t handle wet lockers, pounding wakes, or salt mist. ProMariner’s marine-ready housings, potting, and corrosion-resistant hardware survive season after season. LED or LCD status makes diagnostics simple, even in harsh light. If you’ve ever chased mystery voltage drops in a damp compartment, you’ll appreciate hardware built for the job.
Multi-Bank Charging, Done Right
ProMariner chargers manage each bank independently—ideal when you’re mixing a house battery with dedicated engine starts or a bow-mount trolling battery. Some models can automatically allocate amperage across banks as charging progresses, speeding time to full. That’s less generator time, less fuel, and more fishing or sailing.
Battery Chemistry Support
- Lead-acid: Flooded, AGM, and gel profiles with temperature compensation.
- Lithium (LiFePO₄): Supported on select models with appropriate charging curves and safeguards.
Where ProMariner Shines
- Center consoles & fishing rigs: House + trolling motor banks on independent outputs.
- Sailboats: House banks with windlass or bow thruster batteries benefit from balanced charging.
- Pontoons & cruisers: Shore-power convenience at the dock; peace of mind at anchor.
Installation Essentials (High-Level)
- Mount vertically on a bulkhead with airflow; avoid bilge spray and direct heat.
- Use tinned marine cable sized for low voltage drop; crimp with adhesive-lined heat shrink.
- Fuse each bank near the battery; respect interrupt ratings and polarity.
- Route AC safely with a proper inlet and breaker, following applicable marine electrical guidelines.
Daily Life with an Onboard Charger
Plug in at the dock and forget it; the charger handles bulk, absorption, and float. Away from shore, pair your charger with solar or engine alternator time. With smart distribution across banks, you’ll arrive ready to troll, anchor, or overnight without juggling extension cords or pulling batteries out of lockers.
Troubleshooting & Tips
- Uneven banks? Look for hidden loads (stereos, fridges) on one bank; consider an isolator or monitor.
- Slow charge times? Long cable runs or undersized wire cause drop—upsize conductors and tidy connections.
- Mixing chemistries? Keep each output dedicated to one chemistry; don’t parallel dissimilar batteries on one bank.
FAQs
Can I mount the charger in the bilge? Mount high and dry with airflow. Even marine-rated chargers prefer clean, ventilated spaces.
Does it stay on full-time? Yes—maintain on float when docked. The charger will manage itself.
Will it charge a lithium bank? Use a model with a lithium profile and follow the battery manufacturer’s guidance.
Bottom Line
ProMariner keeps marine batteries happy with rugged hardware and smart multi-bank brains. Wire it cleanly, set the right profile, and focus on the tide—not the voltmeter.
Longtail keywords used naturally: onboard marine battery charger 3 bank, ProMariner ProSport charger installation, waterproof boat battery charger 12V 24V.
Shop Products in CANADA

NOCO
Genius GENPRO10X2: 2-Bank, 20A Onboard Battery Charger - 10A Per Bank, 12V Waterproof Marine Charger with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium Batteries
4.60
(1 reviews)
CAD $438.95
FREE delivery Thu, Sep 11Or fastest delivery Tomorrow, Sep 8

ProMariner
43012 ProSport 12 12 Amp, 12/24 Volt, 2 Bank Generation 3 Battery Charger
4.50
(2 reviews)
CAD $590.84
FREE delivery Sep 12 - 19

ProMariner ProSportHD 10 Gen 4-10 Amp - 2-Bank Battery Charger
0
(0 reviews)
CAD $189.61
FREE delivery Sep 10 - 12

PRO MARINER ProMariner 44028 ProSportHD 20 Battery Charger - 20 Amp / 2 Bank, Black, Standard
4.30
(17 reviews)
CAD $454.67
FREE delivery Sep 9 - 11Only 6 left in stock.

PRO MARINER ProMariner 44029 ProSportHD 20 Plus Battery Charger - 20 Amps / 3 Bank, Black, Standard
3.60
(26 reviews)
CAD $448.57
FREE delivery Sep 9 - 11Only 8 left in stock.

ProNautic 1240P (12 Volt System) 40-amp, 3-Bank Battery Charger
4.70
(21 reviews)
CAD $910.13
FREE delivery Sep 9 - 11

25A Battery Charger, 2/8/20/25 Amp 12V/24V LiFePO4 Lead Acid Fully Automatic Battery Maintainer with Engine Start, 8-Stage Car Battery Trickle Charger, Desulfator for AGM,STD,Gel,Deep Cycle Batteries
4.20
(44 reviews)
CAD $83.99

YHCHKJ
30 Amp 6V/12V/24V Smart Trickle Charger, Car Battery Charger, Lithium, Lifepo4, Lead Acid (AGM/Gel/SLA) Battery Maintainer, Desulfurizer, for: Car, Boat, Motorcycle, Lawn Mowers
4.30
(613 reviews)
CAD $123.96
FREE delivery Thu, Sep 11Or fastest delivery Wed, Sep 10

Smart 3 Bank Marine Battery Charger 10X3, 30A (10A/Bank) 12V,Waterproof,lifepo4 Lithium Boat Battery Charger Maintainer and Desulfator for AGM, Lithium,Deep-Cycle Batteries Boat Accessories
4.70
(57 reviews)
CAD $250.14
$22.08 delivery Wed, Sep 10

Outdoor Extension Cord with Multiple Outlets, 12 ft Black 1 to 3 Splitter Extension Cords, 16/3 SJTW Weatherproof Wire for Outdoor Lights and Holiday Decorations, UL Listed
4.70
(155 reviews)
CAD $20.99
FREE delivery Thu, Sep 11 on $35 of items shipped by AmazonOr fastest delivery Tomorrow, Sep 8

ProSport HD12 120/240V, 12 Amp, 2 Bank
3.50
(2 reviews)
CAD $340.70
FREE delivery Sep 9 - 11

ProTournament Elite 3 360 36 Amp 3-Bank Battery Charger
5.00
(2 reviews)
CAD $628.79
FREE delivery Sep 9 - 11Only 4 left in stock.

Galvanic Isolator, Prosafe 50/60 Amp, 22074
4.30
(42 reviews)
CAD $602.47
FREE delivery Thu, Sep 11Or fastest delivery Tue, Sep 9

Professional Mariner Pronauticp Pronautic 1230P Boating Battery Chargers
4.20
(43 reviews)
CAD $746.99
FREE delivery Wed, Sep 10

Pro Mariner Pro Nautic 1250 12 Volt 50 Amp 3 Bank Charger
4.50
(61 reviews)
CAD $1,006.99
FREE delivery Sep 17 - 24Or fastest delivery Sep 16 - 19