Chargers & accessories
Chargers & Accessories is a specialized subcategory within Electrical & Electronics. Here you will find onboard chargers, DC-DC converters, accessories, and installation components for a reliable power supply on board—from small 12-volt systems on motorboats to 24-volt systems on yachts, workboats, or motorhomes. The focus is on clean, service-friendly installation and components that function reliably in the marine environment, which is characterized by moisture, salt, and vibration.
Depending on availability, we carry products from brands such as Victron, Mastervolt, Dometic, and Talamex, as well as matching accessories and system components (e.g., Blue Sea Systems, Vetus, Wema—depending on the application and selection). Brand names remain unchanged—this is important for system logic, spare parts, configuration profiles, and compatible accessories.
To ensure that the battery and electrical system remain stable over the long term, the charger, battery chemistry (AGM/GEL/LiFePO₄), cable cross-sections, fusing, and installation configuration should be properly matched. Correct sizing reduces voltage drops, error messages, and premature battery wear—and increases safety on board.
- Voltage & Charging Power: 12/24 V, charging amperage matching the battery bank, battery type/charging characteristic curve (AGM/GEL/LFP).
- Fuse Protection & Wiring: Fuse located near the source, correct wire gauges, short runs, clean ground connections.
- Installation: vibration-resistant, corrosion-protected (marine-grade crimps/heat-shrink), good ventilation, and protection against splash water.
- Compatibility: Connection types (ring terminals/plugs), sensors/indicators (e.g., battery monitor/shunt), mounting dimensions, and remote control/monitoring.
FAQ
12 V or 24 V – what should I look for in chargers?
The charger must match the vehicle electrical system voltage (12 V or 24 V) and provide the correct charging curve for the battery chemistry. The charging power (A) should match the capacity of the battery bank and the usage profile. Also important: fuses and cable gauge to prevent unnecessary voltage drops.
What charging capacity (amperes) makes sense—and when do I need more?
The appropriate charging capacity depends on battery capacity, charging times, and power consumers. Those who anchor frequently, have large power consumers (refrigerator, inverter), or want to make use of short layovers on shore power will benefit from higher charging capacity. Those who mostly stay at the dock can opt for a more moderate capacity. It is important that the charger is suitable for your battery and does not deliver currents that are too high, which could overload the battery or wiring.
AGM, GEL, or LiFePO₄—is every charger suitable?
No. AGM and GEL require appropriate voltages and cut-off points, while LiFePO₄ (LFP) requires a suitable LFP charging curve and, ideally, a matched battery management system (BMS). Therefore, always check: supported battery profiles, configuration options, and, if applicable, temperature sensors/voltage sensors. For Victron/Mastervolt systems, integration with monitoring is often a plus.
Which connectors/terminals are compatible?
Ring terminals (screw-type) and marine-grade terminals are frequently used in onboard electrical systems. Pay attention to polarity, appropriate wire gauges, and corrosion-protected connections (crimp + heat-shrink tubing). For accessories (e.g., sensors, remote panels, data cables), manufacturer-specific connector systems are often standard—so pay attention to the model/series.
How do I protect the charger and installation from moisture and corrosion?
Install the charger in a dry, well-ventilated area, protected from splash water and bilge moisture. Use marine-grade cables and corrosion-protected connectors, and secure cables against chafing and vibration. Protect exposed contacts (covers, heat shrink), seal cable entries, and regularly inspect areas exposed to salt.
What is particularly important during installation (safety/fire protection)?
Fuse protection near the source (battery/distribution panel), correct wire gauges, proper grounding, and secure mounting are essential. Route AC and DC cables separately whenever possible, secure cables against chafing, and ensure adequate heat dissipation. If you are unsure or if 230 V/shore power is involved, installation and inspection by a qualified professional is recommended.
Which accessories are often useful in practice (monitoring, distribution, protection)?
Depending on the system, the following are useful: battery monitor/shunt, fuse and distribution blocks (e.g., Blue Sea Systems), main switch, temperature sensors, voltage sensors, as well as remote panels or app monitoring (e.g., Victron). This allows you to see the state of charge and detect faults more quickly, helping you avoid deep discharge.
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