Smart 36V Lithium Battery Charger DC 12V to 43.8V 13A
- TopologyStep-Up Boost CC/CV
- Input / Output12V DC / 43.8V (13A)
- ProtectionIP67 Fully Sealed
- Application36V Trolling & Drive
500+
Standard Power Topologies
130+
Global Export Destinations
IP65/IP68
Marine Moisture Sealing
5 Units
Agile OEM Prototype MOQ
Engineered For Marine & Industrial Fleet Systems
Featured Marine Lithium Battery Chargers & Converters
Precision-engineered charging solutions tailored for electric passenger cruisers, Danube freight vessels, and recreational watercraft navigating Hungarian waterways.
300W Marine LiFePO4 AC-DC Charger (14.6V / 29.2V)
- Input Power90–264V AC Universal
- Output Curve3-Stage Smart LiFePO4
- Plug VariantsEU Schuko / UK / US
- EnclosureAnti-Corrosive Aluminum
600W Waterproof AC-to-DC Intelligent Charger
- DC Range14.6V – 58.4V Configurable
- Efficiency≥ 93.5% at Full Load
- HousingThermal Potted Alloy
- SafeguardsOVP, OCP, OTP, Reverse
12V/24V/48V Multi-Voltage 600W Marine Unit
- Packs Supported4S / 8S / 16S LiFePO4
- EnvironmentalIP66 Shock/Vibration
- CoolingPassive Heatsink Fin
- ApplicationCommercial Canal Tenders
400W DC-DC Battery-to-Battery Charger (10–36V)
- Alternator Input10V – 36V Wide Input
- Secondary Out14.6V / 29.2V Regulated
- IntegrationSmart Alternator Euro 6
- ProtectionDual Bank Starter Isolation
1500W RS485-Controlled Buck-Boost Marine Stabilizer
- Input Voltage10V – 60V Continuous
- Output Bus12V / 24V / 48V Stable
- TelemetryRS485 Modbus RTU
- TargetElectric Propulsion Rail
24V to 12V 100A (1200W) Marine Buck Converter
- Input Nominal24V Shipboard Battery
- Output Current100A Continuous Rail
- Noise/Ripple< 50mV Low-EMI Marine
- MountingIP68 Potted Submersible
Isolated 18–90V to 12V 120W Navigation Supply
- Isolation1500V DC Galvanic Barrier
- PurposeSonar, Radar & AIS Power
- Ground ProtectionEliminates Hull Cathodic Drain
- Design StandardISO 9001 / CE / RoHS
Local Ecosystem Engineering
Localized Marine Power Applications Across Budapest & Central Hungary
Decarbonization initiatives on the River Danube, strict environmental directives at Lake Balaton, and zero-emission urban river logistics have redefined power conversion criteria for Hungarian procurement directors.
Danube River Passenger Cruisers & Water Taxis
Budapest operates dense water passenger corridors between the Parliament, Margaret Island, and the historic Buda Castle embankment. Strict city-center noise and emissions regulations have accelerated the deployment of pure-electric passenger cruisers. In these continuous-duty vessels, battery banks must sustain heavy cyclic utilization. Eltrum's high-wattage AC-DC chargers (600W to 1000W+) provide rapid shore-power replenishment with active Power Factor Correction (PFC > 0.98), minimizing dockside grid interference along Budapest’s municipal pontoons.
Commercial Inland Cargo & Pusher Tug Auxiliaries
As the Danube forms part of the Trans-European Transport Network (TEN-T Rhine-Danube Corridor), heavy industrial pushers operating out of Csepel Free Port demand bulletproof house-power reliability. Dual-battery DC-to-DC converters solve an acute challenge: alternators charging standard engine cranking banks cannot provide the precise constant-current/constant-voltage (CC/CV) profiles needed by sensitive lithium auxiliary cells. Our DC-DC converters regulate unstable alternator feeds from 10V–44V into steady 14.6V or 29.2V rails without thermal overstress.
Balaton & Danube Inland Waterway Regulations
Hungary enforces stringent inland waterway protections, strictly prohibiting internal combustion propulsion across Lake Balaton and enforcing rigorous acoustic thresholds on urban Danube channels. Recreational yachts, electric sailing auxiliaries, and sport fishing craft require completely potted IP67/IP68 chargers. These units withstand corrosive condensation, spray washdowns, and bilge moisture while preventing electrolysis and stray current corrosion via transformer-isolated architecture.
Technical Benchmarking
Marine Conversion Architectures: Selection Guide for Hungarian Naval Engineers
Evaluate topologies based on isolation levels, conversion efficiency, ripple suppression, and local compliance requirements.
| Conversion Class | Danube / Balaton Use Case | Input Envelope | Conversion Efficiency | Galvanic Isolation | Compliance Marks |
|---|---|---|---|---|---|
| Isolated DC-DC Buck-Boost | Navigation electronics, sensitive depth sounders & NMEA 2000 backbones | 18V – 90V DC | 91% – 93% | 1500V DC Isolation | CE, RoHS, EN 60945 |
| Marine Shore-Power AC-DC | Overnight pontoon charging at Budapest marina terminals (4S/8S LiFePO4) | 90V – 265V AC | 93% – 95% | 3000V AC Hi-Pot | CE (LVD/EMC), ISO 9001 |
| Non-Isolated Heavy Buck | High-amperage LED deck projectors, anchor winches, 24V→12V conversion | 20V – 36V DC | 95% – 97% | Common Negative Ground | CE, RoHS |
| Smart Battery-to-Battery | Alternator-to-house bank charging on mixed chemical dual systems | 10V – 40V DC | 92% – 94.5% | Dual Ground Isolation | ISO 9001, CE |
Strategic Industry Analysis
Emerging Supply Chain & Technological Trends in the Hungarian Marine Corridor
Detailed insights into how European Union green transition targets and localized supply chains are reshaping marine battery charger procurement in Budapest.
1. Lithium Iron Phosphate (LiFePO4) Hegemony
Traditional lead-acid and AGM battery banks are being phased out across Central Europe's refit shipyards in favor of LiFePO4 chemistry. Lithium setups provide triple the usable cycle life (3000+ cycles at 80% DoD) and significant weight reductions—vital for passenger vessel speed and hydrodynamics on high-current river bends. However, LiFePO4 cells cannot tolerate overcharging or unregulated alternator heat, necessitating precise multi-stage CC/CV curves with tight float cutoffs (±0.1V).
2. Galvanic Protection & Ground Loop Elimination
Stray current galvanic corrosion degrades aluminum hulls and stern drives rapidly in freshwater river berths where electrical return paths can run through shore grounding. Experienced Budapest vessel engineers now specify transformer-isolated DC-DC converters for onboard communications and instrumentation. Galvanic isolation breaks destructive ground loops, ensuring vessel sensors and radar displays remain completely uncoupled from the traction ground.
3. Direct China-to-Budapest Rail Logistics
Budapest serves as a strategic multimodal hub for the Belt and Road initiative, directly connected to Chinese manufacturing epicenters via the China-Europe Railway Express (arriving at BILK logistics center). This connection enables Hungarian boat builders and marine component distributors to source high-volume chargers with freight times of 16–20 days—drastically quicker than traditional ocean routes through Rotterdam or Koper, reducing supply chain lead-times and warehousing overhead.
4. Integration with Shipboard RS485 Telemetry
Commercial river fleets are increasingly integrating remote diagnostics. Eltrum's programmable high-power series features RS485 Modbus RTU communication interfaces. Fleet operators can monitor real-time charging currents, operating temperature, cell bank voltage balance, and alarm states directly on vessel bridge displays or upload operational telemetry to harbor fleet management servers via cellular IoT nodes.
Shenzhen Eltrum Electronic Co., Ltd.
Direct Manufacturer Advantage for Central European Procurement
Established in 2015 in Shenzhen’s Hangcheng manufacturing cluster, Shenzhen Eltrum Electronic Co., Ltd. has grown from a specialized isolated DC-DC converter lab into an ISO 9001 certified global powerhouse supplying over 500 power topologies across 130+ nations.
Unlike third-party traders, Eltrum controls the entire production cycle—from magnetic transformer winding and surface mount placement (SMT) to vacuum silicone potting, burn-in testing, and thermal chamber validation. We support Budapest shipyards, electrical retrofitters, and industrial equipment distributors with custom tailoring:
- Agile Customization: Tailored voltage setpoints (e.g., custom 14.6V, 29.2V, 43.8V, 58.4V) with buyer-labeled enclosures and bespoke harness connectors.
- Stringent Quality Assurances: Full compliance with CE (EMC/LVD) and RoHS requirements under ISO 9001 quality management systems.
- Prototyping Flexibility: Low sample MOQ starting at just 5 units, allowing naval architects to bench-test chargers before container-load commits.
- Robust Physical Sealing: Thermal potting compound injection ensures IP65 to IP68 rating, dampening engine vibrations and blocking moisture ingress.
Procurement Clarity
Frequently Asked Questions: Marine Charger Imports in Hungary
Direct technical answers addressing the operational, logistical, and electrical concerns of Hungarian procurement specialists.
What are the key EU compliance certifications required for importing marine chargers into Hungary?
To clear customs in Hungary and satisfy NAV (National Tax and Customs Administration) and European maritime authorities, marine battery chargers must bear genuine CE markings verifying compliance with the Low Voltage Directive (LVD 2014/35/EU) and Electromagnetic Compatibility Directive (EMC 2014/30/EU). Equipment must also comply with RoHS Directive (2011/65/EU) restricting hazardous substances. Shenzhen Eltrum Electronic manufactures all export modules strictly under ISO 9001 governance, supplying complete test reports and CE Declarations of Conformity with every shipment.
Why must an isolated DC-DC charger be used rather than a standard non-isolated regulator on steel-hulled Danube vessels?
Non-isolated buck or boost converters bridge the negative terminal between the ship's main battery bank and the auxiliary load. On steel-hulled vessels or aluminum workboats common along the Danube, an accidental negative-ground bond can create micro-current loops running through the ship's skin into the river water, resulting in aggressive electrochemical pitting and galvanic erosion of zinc sacrificial anodes and drive shafts. Galvanic isolation (providing a minimum 1500V DC breakdown barrier) ensures that both electrical loops remain physically decoupled, eliminating hull ground leakages.
Can Eltrum battery chargers tolerate fluctuating voltage outputs from modern Euro 6 boat auxiliary alternators?
Yes. Modern high-efficiency diesel auxiliary engines and variable-output alternators cause system bus voltages to fluctuate dramatically between 11.8V and 15.2V depending on RPM and regenerative load settings. Our smart DC-DC battery-to-battery charging range utilizes high-efficiency buck-boost converter topology. This guarantees that regardless of whether the alternator input voltage dips below or rises above target charge levels, the secondary output remains locked at the exact CC/CV setpoint (such as 14.6V for LiFePO4) without dropouts or over-voltage spikes.
What typical shipping lead times and commercial payment terms are standard for Budapest buyers?
Standard sample orders (starting from our low 5-piece MOQ) typically ship within 3–5 working days via express air freight (DHL/FedEx), arriving at Budapest Ferenc Liszt International Airport (BUD) in 4–6 business days. Commercial production volume is typically shipped FOB Shenzhen or EXW via Rail Cargo Group through the China-Europe Express directly into Budapest terminals within 16–22 days, saving roughly 40% against ocean freight schedules. Standard commercial transactions are handled in USD or EUR via wire T/T, PayPal for validation samples, or verified Trade Escrow terms.
Does Eltrum provide custom charging curve profiles for proprietary battery management systems (BMS)?
Yes. Our in-house research and development engineering group regularly customizes charging profiles for customized pack architectures (including 3S, 4S, 7S, 8S, 13S, 16S chemistry setups for NMC, LiFePO4, or Lithium Titanate). Output voltages, charging current cutoffs, auto-reboot thresholds, and digital RS485 communication protocols can be adjusted at the factory firmware level during SMT assembly to synchronize seamlessly with your third-party BMS.
Connect Directly with Our Power Engineering Team
Discuss voltage ratios, request technical CAD dimensional drawings, or order 5-unit validation prototypes for your Budapest marine or industrial project.