Smart 36V Lithium Battery Charger DC 12V to 43.8V 13A Waterproof
- Topology: Step-Up Boost / CC-CV
- Input Range: DC 10V – 15V
- Output: 43.8V @ 13A (LiFePO4)
- Protection: IP67 Fully Potted
500+
Power Supply Models
130+
Export Destinations
ISO9001
Audited Quality Systems
≥96%
Peak Conversion Efficiency
Engineered For Critical Environments
Precision Step-Down Voltage Regulators & Converters
Explore our flagship high-performance step-down buck regulators, high-voltage converters, and intelligent lithium charging modules specified for Pomeranian industrial automation, maritime, and transport systems.
24V to 12V 85A/100A Step Down Converter for Trucks & Port Cranes
- Topology: Synchronous Buck
- Nominal Input: 24V DC (18–35V)
- Output: 12V DC @ 85A – 100A
- Efficiency: >95.5% Continuous
48V to 24V 40A 1000W High Conversion Efficiency Step Down Regulator
- Topology: High-Power Buck
- Input Range: 38V – 60V DC
- Rated Power: 1000W Continuous
- Thermal: Integrated Fin Heatsink
30-90V Ultra-Wide Input to 24V 10A/20A DC Buck Voltage Regulator
- Topology: Ultra-Wide Dynamic Buck
- System Rail: 36V / 48V / 60V / 72V
- Output: 24V DC Regulated
- Compliance: CE, RoHS Certified
Isolated 18-36V / 36-75V to 24V 5A 120W Step Down DC Module
- Topology: Transformer Galvanic Isolated
- Dielectric: 1500V DC Isolation
- Output: 24V DC @ 5A
- Noise/Ripple: <50mVp-p Low Noise
Isolated 18-90V to 12V 10A Waterproof Step-Down Industrial Regulator
- Topology: Galvanic Ground Decoupled
- Input Span: 18V – 90V Continuous
- Sealing: IP68 Silica Potting
- Application: Forklifts, Harbor AGVs
1500W Heavy Duty Buck-Boost Voltage Stabilizer 10-60V with RS485
- Topology: Bi-Directional Buck-Boost
- Input Window: 10V – 60V Wide DC
- Telemetry: RS485 Modbus RTU
- Power: 1500W Dynamic Voltage
30-60V to 12V 50A/60A High-Current Synchronous Step-Down Module
- Topology: Buck Step-Down
- Input Range: 30V – 60V (48V Bus)
- Max Output: 12V DC @ 60A (720W)
- Cooling: Anodized Extruded Shell
Pomeranian Regional Integration
Localized Engineering Applications across Gdańsk, Gdynia & Sopot
How ruggedized DC power conversion solves the electromagnetic, salinity, and high-vibration challenges facing Northern Poland's core heavy industrial sectors.
Baltic Maritime & Shipyard Systems
Naval architecture and retrofit projects across Gdańsk Shipyard (Stocznia Gdańska) and Remontowa Holding demand resilient DC-DC converters. Battery banks on vessels swing violently between float charge voltages (28.8V) and heavy winch/thruster draws (down to 19V). Our step-down converters maintain rigid 12V and 24V supply rails for radar, sonar navigation consoles, GPS repeaters, and satellite transceivers without brownout dropouts.
DNV-Standard Saline ProtectionBaltic Hub Container Logistics & AGVs
The Port of Gdańsk (Baltic Hub / DCT) is one of the fastest-growing deepwater container terminals on the Baltic coast. Electric Automated Guided Vehicles (AGVs), rubber-tyred gantry cranes, and electric terminal tractors operate on high-voltage 48V, 72V, or 80V traction battery packs. Our wide-input step-down converters step this down directly to 12V/24V for onboard telematics, laser lidar scanners, emergency relays, and RFID inventory transponders.
Extreme Thermal Shock CyclingOffshore Wind & Hydrogen Storage
With massive offshore wind farm installations in the Polish Exclusive Economic Zone of the Baltic Sea (e.g., Baltic Power, Baltica projects), substations and offshore wind operations bases situated around Gdańsk require galvanic isolated DC-DC regulators. These units convert high fluctuating battery bus supplies to ultra-clean, noise-free DC current for remote supervisory control and data acquisition (SCADA) telemetry modules.
Galvanic Spark & Loop IsolationStrategic Technology Evolution: Power Architectures in Northern Poland's Industrial Corridor
As the Pomeranian Voivodeship accelerates its position as Poland's premier logistical gateway and renewable energy hub, system integrators and electrical engineers in Gdańsk are shifting toward decentralized distributed power architectures (DPA). The regional transition from internal combustion industrial equipment to hybrid-electric and pure lithium-ion (specifically Lithium Iron Phosphate, LiFePO4) storage systems has highlighted three major technical requirements: transient voltage suppression, wide-envelope input stabilization, and galvanic isolation.
Firstly, maritime installations and port material handling equipment operate in aggressive electromagnetic environments. Switching high-inductance electrical loads—such as gantry hoists, winches, bow thrusters, and heavy inverters—frequently introduces destructive voltage spikes exceeding 100V across standard 24V or 48V DC buses. Conventional linear or low-grade buck converters break down under such electrical stress. Eltrum's synchronous step-down regulators are engineered with multistage TVS (Transient Voltage Suppressor) diodes, high-grade electrolytic decoupling banks, and active over-voltage clamp circuitry compliant with stringent European EMC directives (EN 61000-6-2, EN 61000-6-4).
Secondly, ambient environmental exposure around Gdańsk Bay imposes severe demands regarding moisture penetration and salt fog corrosion. Our fully encapsulated DC-DC buck regulators feature thermally conductive organosilicon potting classified up to IP68. This prevents moisture ingress, mitigates sulfurization of critical SMD components, and efficiently wicks internal switching heat out through aviation-grade 6063 aluminum finned enclosures without requiring failure-prone mechanical fans.
Thirdly, the adoption of CAN bus, RS485 Modbus RTU telemetry, and sensitive PLC controls in modernized Polish rail (PKP) and municipal transit networks (GAiT) requires total decoupling of grounds. Ground loops and common-mode noise between traction battery banks and sensitive passenger information screens or digital communication relays cause erratic data corruption. Eltrum's high-isolation step-down converters provide up to 1500V DC dielectric isolation, entirely shielding microprocessors from traction ground noise.
Original Manufacturer Pedigree
Why Tier-1 European Buyers Partner with Shenzhen Eltrum
Direct manufacturer capabilities bridging precision Shenzhen electronics manufacturing with Gdańsk's critical engineering demands.
ISO 9001:2015 Assured
Our Shenzhen factory is audited onsite by international inspection agencies. Strict multi-stage Automated Optical Inspection (AOI) and 100% full-load burn-in at 50°C ensure zero-defect outgoing quality.
Full TraceabilityRapid Prototype & Low MOQ
Supporting Polish R&D engineering centers, university labs (Politechnika Gdańska), and startup integrators with minimal order quantities starting from just 5 units on standard configurations.
MOQ From 5 UnitsOEM / ODM Tailoring
Custom output calibration (e.g., custom 13.8V, 14.4V, 27.6V floats), IP68 potted packaging, buyer-specified wiring harnesses (Deutsch, Anderson, M12), and tailored dynamic charging algorithms.
Full Firmware & HW DesignSeamless Baltic Shipping
Experienced air freight and consolidated sea freight routes direct to Port of Gdańsk or Lech Wałęsa Airport (GDN), complete with CE, RoHS, and EU harmonized tariff code documentation.
Direct Freight to Gdańsk
Procurement & Technical Queries
Frequently Asked Questions by Polish Electrical Engineers
Practical technical answers covering import logistics, electrical specifications, and ruggedization compliance for procurement specialists across Poland.
What are the typical sea and air transit lead times from Shenzhen to Gdańsk?
For urgent validation samples and small production batches (≤100 units), express air cargo to Gdańsk Lech Wałęsa Airport (GDN) or Warsaw Chopin (WAW) typically takes 4 to 7 business days. For volume container shipments, direct maritime container service from Shenzhen (Yantian/Shekou) to Baltic Hub Gdańsk requires approximately 28 to 35 days. We provide comprehensive export documentation, including CE Declaration of Conformity (DoC), RoHS reports, and commercial EUR.1 / invoice customs papers to ensure zero clearance holdups at Polish customs.
How do Eltrum step-down regulators handle alternator load-dump spikes in 24V marine and commercial vehicles?
Standard automotive and vessel alternators can produce severe voltage transients up to 80V–100V during battery disconnects or heavy winch switching (ISO 7637-2 / ISO 16750-2 pulses). Eltrum step-down regulators incorporate multi-stage active front-end protections: high-speed TVS suppression diodes, heavy-duty choke coils, and robust industrial-grade MOSFET switches rated well above nominal system voltages (e.g., 100V–150V breakdown voltage). This active suppression topology absorbs high-energy inductive dumps without damaging downstream 12V electronics.
When must we specify an isolated DC-DC converter over a synchronous buck regulator for Gdańsk shipyard projects?
A non-isolated buck regulator shares a common ground between input and output, which provides maximum energy conversion efficiency (>96%) and a compact footprint. However, galvanic isolation (via internal high-frequency planar transformers) is mandatory when: (1) Eliminating ground loops between vessel steel hulls and sensitive navigational instruments to prevent galvanic hull corrosion, (2) Operating on positive-ground or dual-battery electrical splits, or (3) Powering communications equipment that requires dielectric isolation up to 1500V DC to protect against stray currents and electromagnetic interference.
Can Eltrum step-down modules function reliably in sub-zero Baltic winters and humid maritime environments?
Yes. Our heavy-duty converters are completely encapsulated in vacuum-injected organosilicon thermal elastomer, yielding an ingress protection rating of IP67 or IP68. This solid potted state prevents condensation caused by rapid temperature variations between heated vessel cabins and freezing Northern Polish winter air (rated operating range from -40°C to +85°C). Furthermore, the solid encapsulation renders the internal electronics immune to salt mist degradation and continuous structural vibrations up to 5G.
What payment terms and sample testing protocols are offered for Polish OEMs?
We support wire transfer (T/T), PayPal, and secure international Escrow accounts in USD or EUR under FOB, CFR, or EXW Incoterms. Polish engineering teams can order evaluation samples starting from 5 units (with custom voltage calibration available upon technical request). Every prototype ships with a factory test report detailing efficiency curves, ripple/noise spectrum measurements, and thermal dissipation metrics.