Electrical - Battery Management
Marine battery management systems are designed to help monitor, control, and optimize your vessel's power supply for safer and more efficient operation on the water. Engineered for demanding freshwater and saltwater environments, today's battery management solutions provide reliable control over charging, power distribution, and battery protection while helping extend battery life and improve system performance. From battery switches, automatic charging relays, battery monitors, isolators, selectors, management panels, and power distribution components to advanced monitoring solutions, these products help organize and maintain your boat's electrical system. Whether you're managing multiple battery banks, upgrading onboard electronics, or ensuring dependable power for critical equipment, the right battery management components provide greater confidence and control. Featuring premium products from trusted marine manufacturers, our Electrical – Battery Management collection delivers the quality, reliability, and performance serious boaters expect. Browse our selection today and let our knowledgeable team help you choose the ideal battery management solution for your vessel.
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- Featured
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- Best selling
- Alphabetically, A-Z
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Vendor:Bluewater
Bluewater Off/1/2/Both Battery Switch - Surface Mount - Red [9800-007-11]
- £29.27
£0.00- £29.27
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Off/1/2/Both Battery Switch - Surface Mount - RedDesigned for dual battery setups, this 1/2/Both selector switch gives you full control to route power from Battery 1, Battery 2, both, or neither. It’s ideal for managing power flow, setting up backup systems, and charging multiple...- £29.27
£0.00- £29.27
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Vendor:Bluewater
Bluewater Auto Charging Relay 12V - 140 AMP [9800-7101-00]
- £58.53
£0.00- £58.53
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Auto Charging Relay 12V - 140 AMPThe automatic charging relay (ACR) automatically manages battery charging to ensure maximum efficiency and protect your batteries.Features: Automatic battery management – connects batteries during charging and isolates them when the voltage drops Start Isolation (SI) – protects sensitive...- £58.53
£0.00- £58.53
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Vendor:Bluewater
Bluewater OFF/1/2 Battery Switch - Surface Mount - Red [9800-008-11]
- £32.71
£0.00- £32.71
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OFF/1/2 Battery Switch - Surface Mount - RedThis 1/2/Off switch offers seamless selection between two power sources, with an Off position for isolation. It’s a reliable solution for switching between primary and secondary batteries in compact or mobile applications, such as boats, RVs, or...- £32.71
£0.00- £32.71
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Vendor:Egis Mobile Electric
Egis E-Series 350A Battery Switch Off/On [2403]
- £21.78
£46.05- £21.78
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E-Series 350A Battery Switch Off/OnSealed Against Dust & Water Intrusion - To ensure reliable circuit protection for the life of the electrical system installation.Ignition Protected - Safe for installation in closed compartments with potential explosive gases.Serrated Flange Lock Nuts - Improves resistance to cable...- £21.78
£46.05- £21.78
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Vendor:Egis Mobile Electric
Egis M-Series 300A Battery Switch Off/On Key Actuator [2305]
- £13.52
£26.67- £13.52
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M-Series 300A Battery Switch Off/On Key ActuatorSealed Against Dust & Water Intrusion - To ensure reliable circuit protection for the life of the electrical system installation.Ignition Protected - Safe for installation in closed compartments with potential explosive gases.Serrated Flange Lock Nuts - Improves resistance...- £13.52
£26.67- £13.52
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Vendor:Egis Mobile Electric
Egis E-Series 350A Dual Circuit Battery Switch Off/On [2410]
- £39.81
£50.41- £39.81
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E-Series 350A Dual Circuit Battery Switch Off/OnSealed Against Dust & Water Intrusion - To ensure reliable circuit protection for the life of the electrical system installation.Ignition Protected - Safe for installation in closed compartments with potential explosive gases.Serrated Flange Lock Nuts - Improves resistance...- £39.81
£50.41- £39.81
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Vendor:Blue Sea Systems
Blue Sea 3001 HD-Series Battery Switch Single Circuit ON/OFF w/AFD [3001]
- £78.13
£113.44- £78.13
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3001 HD-Series Battery Switch Single Circuit ON/OFF with AFDFeatures: 600 Ampere Continuous Rating Accepts two 4/0 battery cables per terminal Ignition protected - safe for installation aboard gasoline powered boats .870" (22.01mm) stud length to accept multiple cable terminals 1/2" (M12) Tin-plated copper studs for...- £78.13
£113.44- £78.13
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Vendor:Guest
Guest 2303A Diesel Power Battery Heavy-Duty Switch [2303A]
- £154.76
£295.25- £154.76
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Diesel Power Battery Heavy-Duty SwitchFeatures: For 6, 12, 24 or 36 Volt systems Polycarbonate case One year warranty Specifications: Continuous Amps: 450 Momentary Amps: 800 Cable Lug Size: 1/2" Color: Gray Dimensions: 5-1/2" sq x 3-1/2"H WARNING: This product can expose you to chemicals...- £154.76
£295.25- £154.76
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Vendor:Perko
Perko Compact Medium Duty Battery Selector Switch w/Key Lock [8512DP]
- £59.35
£91.26- £59.35
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Compact Battery Selector & Main Disconnect Switches Polycarbonate Body with Brass Terminals Ignition Protected For use with 6 to 32 Volt Marine Electrical Systems Capacity - 315 AMPS Continuous, 450 AMPS 5 Mins. Intermittent Terminal Stud Size: 3/8" Width: 4" Height: 4" Depth: 3"...- £59.35
£91.26- £59.35
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Vendor:Perko
Perko 9703DP Heavy Duty Battery Disconnect Switch w/ Alternator Field Disconnect [9703DP]
- £154.76
£235.54- £154.76
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Heavy Duty Battery SwitchesIgnition ProtectedFor use with 6, 12, 24 and 32 volt marine electrical systemsCapacity - Rated 450 AMPS continuous,1200 AMPS intermittent (15 seconds on, 5 minutes off)Heavy Duty Battery Disconnect Switchw/ Alternator Field Disconnect Specifications: AFD: Yes Lockable: No Continuous Amperage: 450a...- £154.76
£235.54- £154.76
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Vendor:Victron Energy
Victron Battery Switch 275A 12-48VDC Surface or Panel Mount [VBS127010010]
- £28.74
£33.81- £28.74
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Battery Switch 275A 12-48VDC Surface or Panel MountThe Battery Switch ON/OFF 275A is suitable for battery systems up to 48V. It has a unique ergonomic and aesthetic knob design. The knob is removable for isolation or safety purposes.The Battery Switch can be either surface...- £28.74
£33.81- £28.74
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Vendor:BEP Marine
BEP Easy Fit Battery Switch - 275A Continuous [700]
- £26.29
£41.02- £26.29
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Easy Fit Battery Switch - 275A ContinuousThe Easyfit Battery Switch was created for installations where switches need to be recessed through varying thicknesses of panels. It achieves this through an easily removable threaded ring that allows for panel thicknesses up to 3/4" (19 mm)....- £26.29
£41.02- £26.29
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Vendor:BEP Marine
BEP Battery Distribution Cluster f/Twin Outboard Engines w/Three Battery Banks [717-140A-DVSR]
- £252.43
£428.51- £252.43
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Battery Distribution Cluster f/Twin Outboard Engine w/Three Battery Banks The 717-140A-DVSR is designed for twin engine installations. It allows the port engine to charge both the port start battery and the house battery when the port VSR is engaged. It also allows the starboard...- £252.43
£428.51- £252.43
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Vendor:BEP Marine
BEP Heavy-Duty Battery Switch - 600A Continuous [720]
- £63.85
£100.36- £63.85
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Heavy-Duty Battery Switch - 600A ContinuousFeatures: The 720 Heavy-duty Battery Switch is well suited to larger vessels, being capable of handling the high electrical loads found on today's boats and RV's plus starting large diesel engines Rated at 600A continuous and 2500A cranking Can...- £63.85
£100.36- £63.85
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Vendor:Blue Sea Systems
Blue Sea 3003 HD-Series Battery Switch Selector w/Alternator Field Disconnect [3003]
- £81.13
£117.95- £81.13
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3003 HD-Series Battery Switch Selector with Alternator Field Disconnect Features: 500 Ampere Continuous Rating Accepts 4/0 battery cables Ignition protected - safe for installation aboard gasoline powered boats .870" (22.01mm) stud length to accept 4 or more cable terminals 1/2" (M12) Tin-plated copper studs for...- £81.13
£117.95- £81.13
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Vendor:Blue Sea Systems
Blue Sea 9003e e-Series Battery Switch Single Circuit ON/OFF [9003E]
- £30.04
£45.07- £30.04
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9003e e-Series Battery Switch Single Circuit ON/OFF Features: CE Marked Ignition protected - Safe for installation aboard gasoline powered boats Case design allows surface or rear panel mounting Meets American Boat and Yacht Council (ABYC) requirements for battery switches 3/8"-16 tin-plated copper studs for maximum...- £30.04
£45.07- £30.04
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Vendor:Blue Sea Systems
Blue Sea 6007 m-Series (Mini) Battery Switch Selector Four Position Red [6007]
- £27.04
£39.81- £27.04
- Unit price
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6007m-Series (Mini) Battery Switch SelectorMake before break contact design allows switching between battery banks without power interruptionSelectorSwitches battery bank 1 or battery bank 2 or both to a single load using one switchFeatures: Ignition protected - Safe for installation aboard gasoline powered boats Case...- £27.04
£39.81- £27.04
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Vendor:Victron Energy
Victron Orion-Tr Smart 12/24 10 AMP (240W) Isolated DC-DC Charger or Power Supply [ORI122424120]
- £120.06
£141.24- £120.06
- Unit price
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Orion-TR Smart 12/24-10A (240W) Isolated DC-DC Charger or Power SupplyThe Orion-Tr Smart isolated DC-DC charger serves as a DC-DC battery charger or a power supply (also designed for use as a constant voltage source), offering a wide input and output voltage range. This is...- £120.06
£141.24- £120.06
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Vendor:BoatBuckle
BoatBuckle Gas Tank Tie-Down [F05352]
- £7.06
£0.00- £7.06
- Unit price
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BoatBuckle Gas Tank Tie-DownThe Battery Box Tie-Down features a nylon buckle, while the Gas TankTie-down features a zinc coated steel buckle.Both made of durable 1.5"polypropylene webbing and are packed with two polypropylene footmen loopsand four stainless steel screws,for permanent floor mounting.Product Info: Item No.:...- £7.06
£0.00- £7.06
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Vendor:Victron Energy
Victron SmartShunt 500AMP/50MV Bluetooth Smart Battery Shunt [SHU050150050]
- £75.36
£88.65- £75.36
- Unit price
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SmartShunt 500AMP/50MV Bluetooth Smart Battery ShuntThe Smart Battery ShuntThe SmartShunt is an all in one battery monitor, only without a display. Your phone acts as the display. The SmartShunt connects via Bluetooth to the VictronConnect App on your phone (or tablet) and you can...- £75.36
£88.65- £75.36
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![Blue Sea 3001 HD-Series Battery Switch Single Circuit ON/OFF w/AFD [3001]](http://www.dbmarinesupplies.com/cdn/shop/files/20232XL_533x.jpg?v=1682636707)
![Victron Battery Switch 275A 12-48VDC Surface or Panel Mount [VBS127010010]](http://www.dbmarinesupplies.com/cdn/shop/files/91958XL_533x.jpg?v=1682799374)
![Blue Sea 3003 HD-Series Battery Switch Selector w/Alternator Field Disconnect [3003]](http://www.dbmarinesupplies.com/cdn/shop/files/20234XL_533x.jpg?v=1682636733)
![Blue Sea 9003e e-Series Battery Switch Single Circuit ON/OFF [9003E]](http://www.dbmarinesupplies.com/cdn/shop/files/16088XL_533x.jpg?v=1682635244)
![Blue Sea 6007 m-Series (Mini) Battery Switch Selector Four Position Red [6007]](http://www.dbmarinesupplies.com/cdn/shop/files/20505XL_533x.jpg?v=1682637457)
![Victron Orion-Tr Smart 12/24 10 AMP (240W) Isolated DC-DC Charger or Power Supply [ORI122424120]](http://www.dbmarinesupplies.com/cdn/shop/files/92732XL_533x.jpg?v=1682803449)
![Victron SmartShunt 500AMP/50MV Bluetooth Smart Battery Shunt [SHU050150050]](http://www.dbmarinesupplies.com/cdn/shop/files/84027XL_533x.jpg?v=1682763690)