Marine Inverters & Smart Battery Chargers
Stable AC Power & Intelligent Battery Management for Marine Applications
At Django Marine Trading & Services W.L.L, we provide a complete range of marine-grade pure sine wave inverters and smart battery chargers designed for vessels, offshore platforms and marine facilities. Working with leading OEM partners, we deliver solutions that keep critical systems powered, batteries healthy and operations safe in demanding offshore environments.
- Navigation & communications equipment (ECDIS, GPS, VHF, AIS, radar workstations)
- Bridge IT & control systems, CCTV, access control and security
- Engine room monitoring, pumps, fans and automation panels
- Hotel loads on yachts and crew vessels – lighting, outlets, entertainment and galley equipment

Why Marine-Grade Inverters & Chargers Matter
The marine environment places unique stress on electrical equipment. Temperature swings, vibration, salt-laden air and strict safety rules mean that standard industrial or domestic inverters and chargers are often not suitable at sea. Marine-grade equipment addresses these challenges through:
- Corrosion-resistant construction and robust enclosures.
- High electrical efficiency for reduced fuel and heat load.
- Multiple protections – over-voltage, under-voltage, short-circuit, over-temperature.
- Compatibility with common marine battery chemistries such as flooded, AGM and gel.
- Compliance with marine and industrial safety standards where required.
Product Families We Supply
Django Marine supplies two main product families for marine power conversion and battery care:
- Smart Battery Chargers (WSC series and equivalents)
- Pure Sine Wave Inverters (WS / WSI series and rackmount models)
Smart Marine Battery Chargers
Our smart chargers are AC-to-DC units with multi-stage charging profiles that extend battery life and ensure high availability of onboard DC systems. They are ideal as main or backup chargers for house banks, start batteries and DC supply systems.
Core Charger Features
- 4-stage charging algorithm (bulk, absorption, float and equalization) managed by a microcontroller.
- Wide AC input range suitable for global shore-power standards.
- High efficiency in compact and relatively lightweight enclosures.
- Selectable modes for battery charger and DC power supply operation.
- Models available with an additional low-current output for starter or backup batteries.
| Representative Model | Nominal Output | Typical Application on Board |
|---|---|---|
| WSC-12120 (example) | 12 V / 120 A | Large 12 V house banks on commercial vessels and larger yachts. |
| WSC-1280 | 12 V / 80 A | Medium-sized 12 V battery systems for navigation and hotel loads. |
| WSC-2440 | 24 V / 40 A | Typical 24 V systems for workboats, patrol craft and small offshore vessels. |
| WSC-2425 | 24 V / 25 A | Chargers for instrument and control batteries on bridges and platforms. |
| WSC-1230-SB | 12 V / 30 A + 2 A | House battery charging with an additional 2 A output for a starter or backup battery. |
All of these models use fully automatic multi-stage charging controlled by an internal microprocessor, improving charge accuracy and helping to prevent sulfation or premature battery failure.

Pure Sine Wave Marine Inverters
Our marine inverters convert DC from onboard batteries into stable AC power with a pure sine wave output. This high-quality waveform is suitable for sensitive electronics, motors and IT loads commonly found aboard modern vessels.
Inverter Highlights
- Pure sine wave output compatible with sensitive navigation and communication equipment.
- Models from small auxiliary power (120 W) up to heavy-duty 3000 W units.
- High surge capability to start motors and inductive loads.
- Short-circuit, overload, thermal and input-voltage protections.
- Optional remote controls for on/off and status monitoring from the bridge or control room.
| Representative Inverter Models | Power Class | Typical Use |
|---|---|---|
| 120 W / 250 W / 300 W inverters | 120–300 W | Light loads such as small electronics, laptops and instrumentation test equipment. |
| 600 W / 1000 W inverters | 600–1000 W | Navigation PCs, communications gear, smaller galley or workshop tools. |
| 1500 W, 1600 W, 2000 W classes | 1500–2000 W | Mixed hotel loads, pumps, fans and office-type equipment on larger vessels. |
| 2100 W & 3000 W (e.g., WSI-210S series) | 2100–3000 W | Heavier consumers or sub-systems where reliable AC power is critical. |
Rackmount Inverter Options
For integration into technical racks on larger vessels and platforms, we also support rackmount pure sine wave inverters in 1U and 2U form factors. These are well suited to IT rooms, control cabinets and communications racks where space and cabling must be carefully managed.

Typical Marine Applications
The combination of pure sine wave inverters and smart chargers supports many critical tasks on board:
- Powering onboard equipment: Lighting, computers, communication devices, navigation instruments and galley appliances.
- Emergency backup: Maintaining power to navigation, lighting and radios when a generator or shore supply fails.
- Shore-power interface: Converting dock AC to the correct DC level to charge batteries and run DC equipment.
- Support for underwater and offshore systems: Supplying robotics, sub-sea tools and monitoring systems from stable AC.
- Scientific and monitoring instruments: Providing clean power to water-quality sensors and research devices where data accuracy is critical.
Why Work with Django Marine for Inverters & Chargers?
- Marine focus: All recommended models are selected for suitability in harsh marine and offshore environments.
- Application engineering: We help specify the correct inverter and charger ratings based on your load profile and battery bank size.
- Integration support: Assistance with switchboard, DC distribution and monitoring system integration.
- Local presence: Qatar-based support for commissioning, troubleshooting and lifecycle maintenance