Smart 36V 13A Waterproof LiFePO4 Battery Charger (12V to 43.8V)
- Input Range: DC 10–16V (12V Nominal)
- Charge Output: DC 43.8V @ 13A (570W)
- Ingress Rating: IP67 Fully Sealed Potted
- Target System: Marine Trolling / Hybrid EV
500+
Standard Power Topologies
130+
Global Industrial Markets
IP68/IP65
Waterproof Potted Enclosures
ISO 9001
Certified Factory & CE / RoHS
Marine Engineering Selection
High-Performance Marine DC-DC Converters & LiFePO4 Chargers
Engineered to resolve electrical ground loops, voltage drops, and severe marine environmental corrosion across Ise Bay maritime operations and Greater Nagoya dock installations.
Isolated DC-DC Marine Converter 18–75V to 24V 5A (120W)
- Dielectric Isolation: 1500V DC Galvanic Isolation
- Output: 24V @ 5A Regulated Continuous
- Protection: OVP, OCP, OTP & Reverse Polarity
- Application: Radar, Sonar, Marine CAN-Bus
Marine Commercial 24V to 12V 100A High-Current Buck Step-Down
- Input Range: 18–35V DC
- Output Current: 12V DC @ 100A (1200W Max)
- Thermal Mgmt: Extruded Aluminum Fin Case
- Application: Workboat Auxiliaries & Winches
1500W Wide-Input Marine Buck-Boost Stabilizer (RS485 Modbus)
- Wide Dynamic In: 10–60V DC
- Adjustable Out: 12V / 24V / 28V / 48V DC
- Digital Comms: RS485 Telemetry & Diagnostics
- Application: Commercial Port Automation / AGV
Sealed Marine Isolated 18–90V to 12V 10A DC-DC Voltage Module
- Ultra-Wide In: 18–90V DC Continuous
- Output: 12V DC @ 10A (120W Stable)
- Waterproof: IP68 Polyurethane Vacuum Potting
- Application: Port Hybrid Cranes & Marine Tug
400W Dual-Bank DC-DC Marine LiFePO4 Multi-Stage Charger
- Input Source: 10–36V Engine Alternator / Bus
- Battery Curve: CC/CV 14.6V / 29.2V Presets
- Efficiency: >95.4% Synchronous Rectification
- Application: Dual-Bank Marine House Storage
Marine 12V to 48V 20A (960W) Step-Up Boost DC-DC Converter
- Low-End In: 9–20V (12V Nominal Battery)
- High-End Out: 48V DC Regulated @ 20A
- Enclosure: IP68 Salt-Fog Corrosion Resistant
- Application: Electric Bow Thrusters & Davits
300W Marine LiFePO4 AC-DC Waterproof Utility Charger (IP65)
- AC Grid Input: 90–265V AC (Universal Global)
- Profiles: 14.6V / 29.2V / 58.4V Options
- Form Factor: Vibration-Resistant Sealed Cast
- Application: Nagoya Harbor Berth Onboard Float
Engineering Whitepaper & Semantic Scope
Overcoming Galvanic Corrosion & Transient Instabilities in Nagoya Harbors
A rigorous review of maritime electrification requirements within Aichi Prefecture's deep-water shipping channels and river estuaries.
1. The Physics of Common-Ground Galvanic Degradation in Brackish Harbor Water
In high-density industrial maritime environments like the Port of Nagoya—Japan's largest freight transit hub by cargo tonnage—electrified vessels, tugboats, automated cargo handling cranes, and pilot tenders share brackish seawater with significant salt conductivity and floating industrial particulate. Standard non-isolated buck or boost converters create a unified reference plane between shipboard auxiliary electronics and main drive battery banks. Under high-amperage switching transients, common-mode ground currents seek the lowest-impedance path back to earth, frequently bridging through aluminum alloy hulls, propeller shaft bearings, and raw water heat exchangers.
This stray direct current dramatically accelerates electrolytic galvanic corrosion, oxidizing marine grade aluminum (5000/6000 series) and sacrificial zinc anodes within months instead of years. Eltrum's Isolated Marine DC-DC Converter Series utilizes high-frequency toroidal isolation transformers engineered with multi-layer primary-to-secondary optoelectronic isolation, exceeding 1500V DC dielectric withholding capabilities. By structurally severing the ground reference loop, shipboard communications (NMEA 2000, J1939 CAN-Bus, Furuno/JRC radar arrays) remain entirely decoupled from transient inductive voltage spikes caused by winch motors, anchor windlasses, and high-discharge propulsion packs.
2. Synchronous Rectification & Dynamic Thermal Derating Under High Ambient Humidity
Nagoya's humid subtropical climate (spanning summer humidity peaks above 85% RH and engine compartment operating temperatures surpassing +65°C) poses rigorous demands on thermal dissipators. Passive convection cooling fails when salt crust accumulates on heat sink fins. Eltrum addresses this reliability gap by utilizing planar transformer architectures combined with high-grade ultra-low RDS(on) MOSFETs in synchronous rectification circuits. This architectural approach delivers typical operating conversion efficiencies between 94% and 97.2%.
Because waste heat generation is reduced by up to 50% compared to conventional Schottky diode rectification, our marine modules maintain 100% full continuous output up to +55°C without thermal throttle down. Furthermore, all units earmarked for delivery to the Chubu maritime manufacturing cluster undergo automated vacuum potting using thermally conductive, flame-retardant polyurethane resin (UL94V-0 certified), hermetically sealing magnetic chokes, surface-mount components, and ceramic capacitors against corrosive salt mist, electrolytic condensation, and extreme mechanical shock loading up to 20G.
Electric Tugboats & Harbor Workcraft
Tug operations within the Port of Nagoya and Yokkaichi Harbor require stepped conversion from 400V/96V central battery banks down to 24V DC for steering hydraulics, navigation electronics, and pneumatic starters.
Topology: 18-90V & 30-90V Buck Modules with IP68 Submersion Endurance.
Automated Container AGVs & Terminal Cranes
Nagoya Port Container Terminals rely extensively on automated guided vehicles (AGVs) operating on 48V or 72V LiFePO4 packs, requiring transient-free 12V and 24V supply rails for LiDAR, PLC controllers, and vision telemetry.
Topology: Isolated Wide-Spectrum Converters with Modbus Comms.
Offshore Aquaculture & Coastal Research Vessels
Research vessels surveying Mikawa Bay and coastal fish farming arrays require ripple-free DC power supply configurations to avoid electromagnetic distortion on sensitive multi-beam echo sounders and seawater salinity analyzers.
Topology: Low-Ripple (<50mVp-p) Galvanic Isolated Units.
Strategic Industrial Analysis
Nagoya's Maritime Decarbonization & DC Microgrid Transitions
How strict emissions frameworks and electrification in the Chubu economic region are reshaping procurement for power conversion hardware.
Port of Nagoya "Zero Carbon Port" Initiative
Under Japanese national climate directives and the Nagoya Port Authority's decarbonization roadmap, port service vessels, utility barges, and shore handling machinery are mandated to transition toward hybrid-electric and pure-battery drivetrains. This shift elevates the demand for high-reliability DC-DC multi-voltage architectures capable of step-down and step-up functions across diverse battery chemistries.
Transition: Shifting from legacy mechanical alternators to digital DC-DC battery-to-battery charging systems.
Rapid Migration from Lead-Acid to LiFePO4 Chemistry
Nagoya marine retrofitting shipyards are systematically decommissioning heavy deep-cycle lead-acid banks in favor of high-energy-density Lithium Iron Phosphate (LiFePO4). This migration introduces voltage incompatibility issues: LiFePO4 cells feature flat discharge profiles requiring precise CC/CV (constant current / constant voltage) charging curves that engine alternators cannot natively supply without burnout.
Solution: Eltrum 14.6V, 29.2V, and 43.8V CC/CV DC-DC smart charging regulators.
Demand for RS485 & Industrial IoT Telemetry
Unmanned logistics, robotic ferry pilots, and automated quay transports throughout Aichi Prefecture demand real-time telemetry. Shipbuilders no longer accept blind conversion modules; they require active monitoring of input bus voltage, terminal temperature, current throughput, and thermal overload flags via integrated RS485 / CAN protocols.
Capability: Eltrum WG-Series integrated RS485 Modbus remote telemetry architectures.
Enterprise Manufacturing Authority
Direct-from-Factory Excellence for Japanese Maritime Procurement
Shenzhen Eltrum Electronic Co., Ltd. (founded in 2015) is an onsite-verified designer and manufacturer specializing in DC-DC converters, isolated power modules, and intelligent LiFePO4 charging systems. Operating from our ISO 9001 certified production facility spanning 3,000 square meters, we maintain 500+ standard models exported across 130 countries, with established long-term engineering partnerships in Japan, North America, and Western Europe.
- Isolated Circuit Heritage: Decades of combined core engineering expertise in galvanic isolation and magnetic transformer optimization.
- 100% Full-Load Burn-In QC: Every production module passes multi-hour thermal cycle and elevated voltage stress testing prior to packaging.
- OEM/ODM Flexibility: Customization of input voltages (up to 120V), custom charging voltages, proprietary potting compounds, and private-label CNC enclosures.
- Low Prototype Barrier: Standard sample evaluation orders available starting from 5 units, facilitating rigorous dockside proof-of-concept testing.
Procurement Engineering FAQ
Frequently Asked Questions by Marine Integrators in Japan
Addressing compliance, technical adaptation, and international logistics for Nagoya maritime supply chains.
How do Eltrum converters prevent electrolytic corrosion in steel- or aluminum-hull vessels?
Our isolated converter topologies provide complete physical and electrical dielectric separation (>1500V DC) between input negative and output negative lines. This galvanic barrier halts stray DC ground currents from escaping via engine mounts, thruster housings, or raw-water cooling interfaces into Nagoya harbor water, neutralizing the root driver of electrolytic hull degradation and cathodic shield overload.
Can your DC-DC battery chargers accept variable alternator voltages from commercial marine engines?
Yes. Our smart battery-to-battery charging series (such as the 10–36V and 18–90V wide-input models) features integrated buck-boost pre-regulation. Regardless of whether an engine alternator drops to 11.8V during harbor idling or surges to 29.5V during high-speed transit, the converter stabilizes the power and outputs a strictly managed CC/CV profile (such as 14.6V or 29.2V) to protect auxiliary LiFePO4 battery banks from thermal runaway.
What international quality and environmental certifications support these units for import into Japan?
Eltrum power conversion hardware is manufactured under an ISO 9001 certified quality management system. The converter lines carry full CE conformity (EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU) and RoHS environmental compliance, with certified third-party lab documentation available to facilitate customs clearance and ClassNK approval documentation for vessel builders.
What lead times and delivery mechanisms apply to shipments into the Port of Nagoya / Chubu region?
For standard production models, sample validation packages (starting from 5 units) are typically dispatched via express air freight (DHL/FedEx) within 3–5 working days, arriving at Chubu Centrair International Airport (NGO) in approximately 2–4 days. Commercial volume orders are dispatched under FOB Shenzhen or CIF Nagoya Port terms, supported by direct container lines reaching Nagoya harbor in approximately 4 to 7 sailing days.
Do you offer custom chassis potting, pinout configurations, or custom voltage trims for Japanese OEMs?
Yes. Shenzhen Eltrum Electronic Co., Ltd. provides end-to-end OEM/ODM design services. We routinely customize output setpoints (e.g., custom 13.8V, 27.6V, 43.8V, or 54.8V cut-offs), integrate waterproof Amphenol or Deutsch industrial connectors, adjust wire harness gauges and lengths, configure RS485 communication baud rates, and apply anti-corrosive marine conformal potting formulations.
Accelerate Your Marine Electrification Project in Nagoya
Consult directly with Eltrum's power electronics engineering team. Receive comprehensive datasheets, custom conversion schematics, and factory-direct volume pricing within 24 business hours.
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