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Over 50 years of Trusted Marine Service

Power Generation & Charging

Marine Power Generation & Charging

Marine Batteries, Chargers, Alternators, Solar, Inverters & Charging Gear

Find marine power generation and charging equipment for starting batteries, house banks, electronics loads, refrigeration, pumps, lighting, communications, trolling loads, and onboard comfort systems. Shop battery chargers, alternators, voltage regulators, solar panels, solar controllers, battery isolators, ACRs, DC-to-DC chargers, inverters, inverter chargers, battery monitors, generator parts, shore power charging accessories, and installation support.

Shop Power & Charging Search Battery Chargers Ask Parts Desk

Confirm battery chemistry, bank voltage, charging output, installation location, wire sizing, ventilation, fusing, breaker protection, and manufacturer requirements before ordering or installing charging equipment.

Popular Power & Charging Searches

Choose by Charging Source, Battery Bank, or Electrical Component

Use these links to narrow by product type. Search links are used where a dedicated collection may not exist, so shoppers still reach matching products quickly.

All Power & ChargingMain collection for charging sources, battery support, and onboard power gear. Marine BatteriesStarting batteries, house batteries, AGM, flooded, gel, and lithium-ready battery searches. Battery ChargersOnboard chargers, portable chargers, multi-bank chargers, and shore-power charging. AlternatorsMarine alternators, high-output charging parts, brackets, pulleys, and charging support. Voltage RegulatorsExternal regulators, alternator control, charge management, and output support. Solar PanelsSolar panels for maintenance charging, house banks, off-grid support, and battery upkeep. Solar ControllersMPPT and PWM charge controllers, solar regulators, and charging control parts. DC-to-DC ChargersEngine-to-house charging, lithium charging support, and controlled bank-to-bank charging. Battery IsolatorsIsolators for separating charging paths and protecting start or auxiliary batteries. ACRs & RelaysAutomatic charging relays, combiners, solenoids, and charge-routing components. InvertersDC-to-AC power conversion for onboard AC loads and cruising comfort. Inverter ChargersCombined inverters and chargers for house banks, shore power, and cruising systems. Battery MonitorsBattery monitors, shunts, meters, and state-of-charge monitoring parts. Marine GeneratorsGenerator searches, onboard AC power support, and generator-related equipment. Generator PartsGenerator filters, impellers, belts, service kits, electrical parts, and maintenance items. Shore PowerCords, inlets, adapters, chargers, connectors, and dockside charging accessories.

Charging Sources

Alternator, Shore Power, Solar, Generator, and DC-to-DC Charging

Most boats rely on more than one charging source. Alternators charge underway, shore power chargers maintain batteries at the dock, solar helps support house loads and storage, generators supply AC power, and DC-to-DC chargers manage controlled charging between banks.

High-Output AlternatorsMulti-Bank ChargersSolar KitsDC-to-DC Charging

Storage & Control

Batteries, Monitors, Isolators, ACRs, Regulators, and Protection

A reliable charging system depends on the whole path: battery chemistry, bank size, alternator output, charger settings, wire size, fusing, switching, grounds, ventilation, monitoring, and circuit protection.

AGM BatteriesLithium BatteriesBattery SwitchesCircuit Protection
VLT

Match Voltage

Confirm 12 volt, 24 volt, 36 volt, or other system requirements before choosing chargers, alternators, controllers, or inverters.

BAT

Match Battery Chemistry

Flooded, AGM, gel, and lithium batteries need the right charging profile, settings, temperature handling, and protection.

AMP

Size the Output

Compare charger amperage, alternator output, solar wattage, inverter load, and battery-bank capacity so the system can recharge safely.

System Planning

Charging Parts Work as a System

Before upgrading one part, look at the whole electrical path. A bigger alternator, charger, inverter, solar array, or battery bank may also require updated wiring, fuses, breakers, switches, bus bars, monitoring, ventilation, and installation planning.

Contact Parts DeskWiring & ConnectionsPower Protection
For battery chargersMatch voltage, number of banks, battery chemistry, amp-hour capacity, charger output, mounting location, and shore power setup.
For alternatorsConfirm engine fitment, belt style, pulley alignment, output rating, regulator needs, and wiring capacity.
For solar systemsMatch panel wattage, controller rating, wiring length, battery type, mounting location, and shading conditions.
For invertersSize continuous and surge load, battery capacity, cable size, overcurrent protection, ventilation, and AC wiring requirements.

Common Brand Searches

Search Popular Marine Charging Brands

VictronChargers, inverters, monitors, solar controllers, and power management. MastervoltCharging, inverters, battery management, and onboard power systems. ProMarinerOnboard battery chargers, maintainers, and marine charging support. Blue Sea SystemsACRs, switches, meters, fuses, bus bars, and charge management parts. BalmarHigh-output alternators, regulators, belts, and advanced charging control. XantrexInverters, inverter chargers, battery monitors, and onboard AC power support. GuestMarine battery chargers, maintainers, and charging accessories. MarincoShore power cords, inlets, adapters, and dockside power accessories.

Charging System FAQ

Marine Power Generation Buying Help

How do I choose the right marine battery charger?

Match the charger to the battery-bank voltage, battery chemistry, number of banks, amp-hour capacity, installation environment, shore power setup, and desired charging speed.

Do I need an alternator, battery charger, solar panel, or generator?

Alternators charge while the engine runs, battery chargers charge from shore power, solar panels support ongoing charging from sunlight, and generators provide onboard AC power. Many boats use more than one source.

What does a battery isolator or ACR do?

Battery isolators and ACRs help manage charging between battery banks. They can protect a starting battery while allowing charging current to reach house or auxiliary batteries.

What should I check before upgrading a charging system?

Review battery chemistry, bank capacity, wiring size, fusing, alternator output, charger settings, solar controller rating, ventilation, and installation location before upgrading.

Search Marine Batteries, Chargers, Solar & Charging Parts

Use the collection page or search by charging source, battery type, voltage, amperage, brand, or system component.

Shop All Power & ChargingBattery ChargersAlternators

Filters

Xantrex TRUECharge3 804-1260-10 Battery Charger 60A 12V

$1,100.59 - $1,100.59
$1,100.59
$1,100.59 - $1,100.59
$1,100.59
Only 2 left!

The Xantrex TRUECharge3 804-1260-10 is an ultra-compact, high performance battery charger for worldwide charging. Featuring microprocessor-controll...

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$1,100.59 - $1,100.59
$1,100.59
$1,100.59 - $1,100.59
$1,100.59
Sold out

Mitsubishi A3TR0093 Alternator | Volvo Penta 3840181 | 12V 115A

$265.00 - $265.00
$265.00
$265.00 - $265.00
$265.00
Out of stock

Mitsubishi A3TR0093 Alternator — Volvo Penta 3840181 | 12V 115A Part Number A3TR0093 / A003TR0093 Brand Mitsubishi Electric Official P...

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$265.00 - $265.00
$265.00
$265.00 - $265.00
$265.00
Sold out

Blue Sea Systems P12 Battery Charger 12V 40A 3-Bank – 7532

$1,374.21 - $1,374.21
$1,374.21
$1,374.21 - $1,374.21
$1,374.21
Only 3 left!

Blue Sea Systems P12 Battery Charger 12V 40A 3-Bank – 7532 Part Number 7532 Brand Blue Sea Systems Model P12 Common SKU BSS-7532 / 7532-B...

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$1,374.21 - $1,374.21
$1,374.21
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$1,374.21

Mercury Quicksilver OEM Alternator 892940T02 – 70 Amp | Verado FourStroke 135–400 HP

$918.05 - $918.05
$918.05
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$918.05
Only 1 left!

Mercury Quicksilver OEM Alternator 892940T02 – 70 Amp Part Number: 892940T02  |  Brand: Mercury / Quicksilver  |  GTIN: 745061633070 Genuine Mercu...

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$918.05 - $918.05
$918.05
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$918.05
Sierra 63474P Sterling Series 3" Stainless Steel Electric Outboard & 4 Stroke Gas Engine 0-7,000 RPM Dial Range Tachometer & Hourmeter Gauge with Outboard Alternator or Coil Sender Code

Sierra 63474P Sterling Series 3" Stainless Steel Electric Outboard & 4 Stroke Gas Engine 0-7,000 RPM Dial Range Tachometer & Hourmeter Gauge with Outboard Alternator or Coil Sender Code

$376.99 - $376.99
$376.99
$376.99 - $376.99
$376.99
Item locally warehoused

Overview Sterling Series 3" stainless steel tachometer & hourmeter gauge for marine engines. The 3-inch dial provides 0-7,000 RPM with a dedica...

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$376.99 - $376.99
$376.99
$376.99 - $376.99
$376.99
Sierra 63473P Sterling Series 3" Stainless Steel Electric Outboard & 4 Stroke Gas Engine 0-7,000 RPM Dial Range Tachometer Gauge with Outboard Alternator or Coil Sender Code

Sierra 63473P Sterling Series 3" Stainless Steel Electric Outboard & 4 Stroke Gas Engine 0-7,000 RPM Dial Range Tachometer Gauge with Outboard Alternator or Coil Sender Code

$215.39 - $215.39
$215.39
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$215.39
Item locally warehoused

Overview Sterling Series 3" Stainless Steel Tachometer Gauge for marine outboard and 4-stroke engines. This 3-inch dial gauge features a brushed al...

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$215.39 - $215.39
$215.39
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$215.39
Sierra 62561P White Premier Pro Series 3" Stainless Steel Outboard & 4 Stroke Gas Engine 0-7,000 RPM Dial Range Tachometer Gauge with Outboard Alternator or Coil Sender Code

Sierra 62561P White Premier Pro Series 3" Stainless Steel Outboard & 4 Stroke Gas Engine 0-7,000 RPM Dial Range Tachometer Gauge with Outboard Alternator or Coil Sender Code

$257.99 - $257.99
$257.99
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Item locally warehoused

Overview Sierra 62561P White Premier Pro Series 3\" Stainless Steel Outboard & 4 Stroke Gas Engine 0-7,000 RPM Dial Range Tachometer Gauge with...

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$257.99 - $257.99
$257.99
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$257.99
Sierra 65693P Lido Series 3" White & Stainless Steel Electric Outboard & 4 Stroke Gas Engine 0-7,000 RPM Dial Range Tachometer Gauge with Outboard Alternator or Coil Sender Code

Sierra 65693P Lido Series 3" White & Stainless Steel Electric Outboard & 4 Stroke Gas Engine 0-7,000 RPM Dial Range Tachometer Gauge with Outboard Alternator or Coil Sender Code

$218.29 - $218.29
$218.29
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Item locally warehoused

Overview A 3-inch tachometer gauge designed for outboard engine instrumentation, featuring a white dial, stainless steel bezel, and 0-7,000 RPM ran...

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$218.29
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Sierra 59703P Sahara Series 3" Black & Tan 0-7,000 RPM Dial Range Tachometer Gauge with Outboard Alternator or Coil Sender Code

Sierra 59703P Sahara Series 3" Black & Tan 0-7,000 RPM Dial Range Tachometer Gauge with Outboard Alternator or Coil Sender Code

$215.49 - $215.49
$215.49
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$215.49
Item locally warehoused

Overview Sierra 59703P Sahara Series 3\" Black & Tan 0-7,000 RPM Dial Range Tachometer Gauge with Outboard Alternator or Coil Sender Code. Blac...

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$215.49
Battswitch w/Alternator Disconnect

Battswitch w/Alternator Disconnect

$132.09 - $132.09
$132.09
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Item locally warehoused

Overview Battswitch w/Alternator Disconnect is a medium-duty battery switch designed for multi-battery configurations in single- or dual-engine sys...

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$132.09 - $132.09
$132.09
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Blue Sea Systems 9002e e-Series 4 Position Selector Battery Switch With Alternator Field Disconnect

Blue Sea Systems 9002e e-Series 4 Position Selector Battery Switch With Alternator Field Disconnect

$128.79 - $128.79
$128.79
$128.79 - $128.79
$128.79
Item locally warehoused

Overview <p>9002e e-Series 4 Position Selector Battery Switch With Alternator Field Disconnect</p><p>High-current battery switch ...

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$128.79 - $128.79
$128.79
$128.79 - $128.79
$128.79
Blue Sea Systems 3002 HD-Series Heavy Duty 4 Position Selector Battery Switch

Blue Sea Systems 3002 HD-Series Heavy Duty 4 Position Selector Battery Switch

$247.19 - $247.19
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$247.19
Item locally warehoused

Overview Blue Sea Systems 3002 HD-Series Heavy Duty 4 Position Selector Battery Switch Key Features 4-Position HD-Series selector battery switch U...

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$247.19 - $247.19
$247.19
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Blue Sea Systems HD-Series Heavy Duty On-Off Battery Switch With AFD

Blue Sea Systems HD-Series Heavy Duty On-Off Battery Switch With AFD

$223.06 - $223.06
$223.06
$223.06 - $223.06
$223.06
Item locally warehoused

Overview HD-Series Heavy Duty On-Off Battery Switch With AFD delivers robust, high-current switching for demanding electrical systems. It features ...

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$223.06 - $223.06
$223.06
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Switch Battery Heavy Duty On-Off

Switch Battery Heavy Duty On-Off

$194.88 - $194.88
$194.88
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$194.88
Item locally warehoused

Overview Switch Battery Heavy Duty On-Off is a high-current battery switch designed for large diesel engine electrical systems. It features a make-...

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$194.88 - $194.88
$194.88
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$194.88
Attwood Battery Selector Switch 4 Way

Attwood Battery Selector Switch 4 Way

$71.99 - $71.99
$71.99
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$71.99
Item locally warehoused

Overview Four-way battery selector switch designed to manage multiple DC power sources in marine and other 6–32 V DC electrical systems. It offers ...

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$71.99 - $71.99
$71.99
$71.99 - $71.99
$71.99
Seachoice 11294 300 Amp Marine Rated Battery Fuse

Seachoice 11294 300 Amp Marine Rated Battery Fuse

$30.01 - $30.01
$30.01
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$30.01
Item locally warehoused

Overview These marine-rated fuses provide reliable main and auxiliary circuit protection for demanding marine electrical systems. Rated at 300 A, t...

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$30.01 - $30.01
$30.01
$30.01 - $30.01
$30.01
Seachoice 11293 250 Amp Marine Rated Battery Fuse

Seachoice 11293 250 Amp Marine Rated Battery Fuse

$31.31 - $31.31
$31.31
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$31.31
Item locally warehoused

Overview These marine-rated fuses provide main and auxiliary circuit protection in demanding environments or tight spaces. Key Features 250 Amp ma...

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$31.31 - $31.31
$31.31
$31.31 - $31.31
$31.31
Seachoice 11287 100 Amp Marine Rated Battery Fuse

Seachoice 11287 100 Amp Marine Rated Battery Fuse

$31.31 - $31.31
$31.31
$31.31 - $31.31
$31.31
Item locally warehoused

Overview Marine-rated 100 Amp battery fuse designed for main and auxiliary circuit protection in demanding environments and tight spaces. Provides ...

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$31.31 - $31.31
$31.31
$31.31 - $31.31
$31.31
Seachoice 11286 80 Amp Marine Rated Battery Fuse

Seachoice 11286 80 Amp Marine Rated Battery Fuse

$31.31 - $31.31
$31.31
$31.31 - $31.31
$31.31
Item locally warehoused

Overview 11286 80 Amp Marine Rated Battery Fuse is designed for main and auxiliary circuit protection in demanding marine environments, including a...

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$31.31 - $31.31
$31.31
$31.31 - $31.31
$31.31
Seachoice 11284 60 Amp Marine Rated Battery Fuse

Seachoice 11284 60 Amp Marine Rated Battery Fuse

$31.31 - $31.31
$31.31
$31.31 - $31.31
$31.31
Item locally warehoused

Overview 11284 60 Amp Marine Rated Battery Fuse is designed for main and auxiliary circuit protection in demanding marine environments, including a...

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$31.31 - $31.31
$31.31
$31.31 - $31.31
$31.31
Seachoice 11280 30 Amp Marine Rated Battery Fuse

Seachoice 11280 30 Amp Marine Rated Battery Fuse

$31.31 - $31.31
$31.31
$31.31 - $31.31
$31.31
Item locally warehoused

Overview Seachoice 11280 30 Amp Marine Rated Battery Fuse is designed for main and auxiliary circuit protection in demanding marine environments wh...

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$31.31 - $31.31
$31.31
$31.31 - $31.31
$31.31
Blue Sea Systems 7623 ML Series Automatic Charging Relay, 24V w/Manual Override

Blue Sea Systems 7623 ML Series Automatic Charging Relay, 24V w/Manual Override

$491.22 - $491.22
$491.22
$491.22 - $491.22
$491.22
Item locally warehoused

Overview Blue Sea Systems 7623 ML Series Automatic Charging Relay, 24V w/Manual Override. A dual-battery management relay that automatically ties b...

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$491.22 - $491.22
$491.22
$491.22 - $491.22
$491.22
Blue Sea Systems 7622 ML Series Automatic Charging Relay, 12V w/Manual Override

Blue Sea Systems 7622 ML Series Automatic Charging Relay, 12V w/Manual Override

$597.29 - $597.29
$597.29
$597.29 - $597.29
$597.29
Item locally warehoused

Overview ML Series Automatic Charging Relay (12V) automatically combines batteries during charging and isolates them during discharging and engine ...

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$597.29 - $597.29
$597.29
$597.29 - $597.29
$597.29
ProMariner Battery Isolator

ProMariner Battery Isolator

$435.20 - $435.20
$435.20
$435.20 - $435.20
$435.20
Item locally warehoused

Overview Battery isolator designed to charge multiple battery banks from a single DC source while keeping banks separate. Supports 6, 12, 24 and 32...

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$435.20 - $435.20
$435.20
$435.20 - $435.20
$435.20