Smart 36V Lithium Battery Charger DC 12V to 43.8V 13A
- TopologySynchronous Boost/Buck
- Output Profile43.8V CC/CV · 13A
- ProtectionIP67 Waterproof Sealed
- Primary UsesEV Car, Marine & E-Bike
Engineered Hardware
Core DC-DC Step-Down & Power Regulation Series
Tested under rigorous ISO 9001 quality standards with high MTBF, ultra-compact topologies, and complete CE / RoHS compliance for European commercial deployments.
24V to 12V 85A / 100A Commercial Vehicle Buck Regulator
- Input Voltage18V – 35V DC Nominal
- Continuous Output12V DC up to 100A
- EfficiencyPeak 96.5% Synchronous
- HousingExtruded Aluminum Alloy
48V to 24V 40A 1000W High Conversion Step-Down Module
- Input Voltage38V – 60V Traction DC
- Rated Output24V DC @ 40A (1000W)
- CoolingConvection / Passive Fins
- ComplianceCE Marked, RoHS 2.0
30–90V to 24V 20A Wide-Input Buck Converter
- Ultra-Wide Input36V, 48V, 60V, 72V Pack
- Output Spec24V DC ±1% / 480W
- Ingress RatingIP68 Epoxy Encapsulated
- FeaturesAnti-Spike Transient Surge
18–90V to 12V 10A Galvanically Isolated Step-Down
- Galvanic Isolation1500V DC Dielectric Barrier
- Input Bus18V – 90V Continuous
- Ground LoopTrue Floating Neutral Design
- Target MarketAGV, Forklifts & Telecom
18–90V to 12V 10A Integrated Micro Buck Regulator
- Operating Window18V to 90V Step-Down
- Ripple & Noise< 50mVp-p Low EMI
- Thermal Range-40°C to +85°C Industrial
- Form FactorUltra-Low Profile Footprint
1500W Intelligent Step-Down / Buck-Boost (RS485)
- Input Flexibility10V – 60V Wide Range
- Programmable Rail12V, 24V, 28V, 48V Regulated
- Digital TelemetryRS485 Modbus Integration
- Smart ProtectionsOver-Temp, OVP, OCP, UVLO
400W IP68 DC-DC Dual-Battery Charger & Step-Down
- Source Vehicle Bus10V – 36V Euro 6 Alternator
- Lithium Charge Curve14.6V / 29.2V Smart CC/CV
- EnclosureHermetic Solid Resin Potting
- ApplicationsSpecialty Fleet, RV & Yacht
Engineering Whitepaper Analysis
DC-DC Power Architectures Across Strasbourg & Upper Rhine Corridors
A comprehensive examination of electrical stepping topologies, thermal dissipations, and local industrial integration requirements across the Grand Est regional manufacturing base.
The Eurometropolis of Strasbourg stands as an essential geopolitical and logistics hub within Western Europe, bridging northern French distribution networks with Germany’s industrial Baden-Württemberg corridor. Power conversion hardware in this regional boundary must manage demanding cross-border regulatory standards and severe physical operation envelopes.
In modern automotive engineering, river barge electrification along the Port Autonome de Strasbourg, and agricultural automation across Alsace, the transition toward higher DC distribution voltages—specifically 48V intermediate buses and 72V–96V traction packs—has made high-efficiency synchronous step-down (Buck) conversion critical. Step-down systems must maintain uninterrupted voltage clamping, withstand aggressive inductive transients from Euro 6 regenerative braking, and minimize thermal losses inside sealed enclosures.
Standard off-the-shelf conversion stages often suffer thermal derating under harsh ambient conditions or lack the low electromagnetic interference (EMI) profiles mandated by European EMC standards (EN 55032 / EN 61000). Shenzhen Eltrum Electronic engineers buck modules with magnetic shielding, low RDS(on) MOSFET architectures, and hermetic potting, ensuring optimal electrical continuity and long operating lifespans.
Euro 6 Commercial Fleet Upgrades
Modern haulage logistics connecting the Strasbourg Port with Basel and Karlsruhe require reliable 24V-to-12V buck conversion to drive telematic transceivers, refrigerated cargo sensors, and auxiliary instrumentation without stressing smart alternators.
Rhine River Inland Maritime Electrification
Decarbonization initiatives across the Rhine waterway demand fully encapsulated, IP68 waterproof DC step-down hardware capable of stepping 48V LiFePO4 house banks to 12V/24V navigation, sonar, and communication arrays in saline, damp conditions.
Intralogistics AGVs & Warehouse Robotics
Automated guided vehicles across Strasbourg-Entzheim distribution centers run on 48V–80V lithium traction packs. Our isolated step-down modules isolate noisy drive motor rails from sensitive guidance LiDAR, PLCs, and safety systems.
Regional Trends
Emerging Power Management Trends in Alsace & the Upper Rhine
Strategic technological evolutions influencing OEM component sourcing, environmental regulation compliance, and system-level energy densities.
Transition to 48V Micro-Hybrid Architectures
European automotive OEMs are increasingly standardizing on 48V bus architectures to power heavier loads such as electric steering, AC compressors, and active suspension, elevating demand for ultra-compact, high-amperage 48V-to-12V buck converters.
Aggressive Stringency in EMI & CE Compliance
Strasbourg’s cross-border technical trade requires strict adherence to stringent EMC and safety profiles. Modern system architects reject noisy unshielded switchers in favor of integrated filter chokes, soft-recovery diodes, and multi-stage EMI attenuation.
Solid-State Thermal Potting for Extreme Reliability
Given climate extremes in the Upper Rhine Plain—ranging from sub-zero winter spells to scorching summer heat inside engine bays—unpotted power supplies regularly suffer solder fatigue. Silicone and polyurethane encapsulations have shifted from a luxury to an absolute necessity.
Manufacturing Authority
Shenzhen Eltrum Electronic: Direct Factory Infrastructure
Onsite-verified engineering facility delivering tier-1 manufacturing capabilities, certified quality management, and OEM/ODM agility to global power integration partners.
500+
Standard Power Models
130+
Countries Exported
ISO 9001
Certified Quality Management
5 pcs
Low Evaluation MOQ
Engineered Reliability Since 2015
Founded in Shenzhen’s high-tech manufacturing corridor, Shenzhen Eltrum Electronic Co., Ltd. specializes in advanced power conversion electronics. Our development team has spent over a decade perfecting isolated and non-isolated topologies, high-current buck regulators, and intelligent battery chargers.
Every converter platform manufactured in our 3,000m² facility undergoes thorough production stages, including surface-mount SMT assembly, automated optical inspection (AOI), complete potting encapsulation, and mandatory high-temperature burn-in cycles. This strict protocol delivers field defect rates well below 0.2%.
- ✔ Bespoke Customization: Custom input/output voltages, cable harnesses, and enclosures.
- ✔ Rigorous Global Compliance: Certified to CE (LVD/EMC) and RoHS directives.
- ✔ Direct Engineering Collaboration: Rapid prototype turnaround from qualified power supply specialists.
Technical Knowledge Base
Frequently Asked Procurement & Engineering Questions
Authoritative technical clarifications addressing voltage regulation topologies, thermal limits, grounding schemes, and international logistics.
What is the crucial difference between a Buck converter and a Buck-Boost converter?
A standard DC-DC Buck converter functions exclusively as a step-down regulator, meaning the input voltage must always remain higher than the target output voltage plus the circuit's headroom margin (typically 1.5V to 3V higher). If your source voltage fluctuates above and below your output—such as a 12V lead-acid or LiFePO4 battery that drops to 9V under starter motor cranking and climbs to 14.6V during alternator charging—a Buck-Boost converter is strictly required to maintain stable voltage regulation throughout the entire swing.
When should an industrial integrator in Strasbourg select an isolated Buck converter?
Galvanic isolation (transformer-isolated) should be selected when the input power ground and output load ground must remain completely independent. Common use cases include breaking ground loops in sensitive telemetry and marine radios, preventing short circuits in positive-ground industrial equipment, and safeguarding expensive PLCs and robotic electronics against catastrophic high-voltage back-surges originating from traction motors or high-voltage battery packs.
How does Eltrum ensure compliance with European Union CE and RoHS standards?
All Eltrum buck converters, boost regulators, and battery charging systems are engineered and tested in accordance with relevant European Union harmonized standards. We strictly utilize hazardous-substance-free components verified under RoHS 2.0. Electromagnetic Compatibility (EMC) testing ensures compliance with EN 55032 and EN 55035, minimizing both conducted and radiated emissions to avoid interfering with vehicle CAN buses, maritime VHF, or factory automation systems. Official test reports and Declarations of Conformity are provided to OEM purchasers upon request.
What is the recommended derating factor for enclosed vehicle installations?
For enclosed installations without forced air ventilation, or applications where ambient operational temperatures frequently exceed 40°C (such as commercial vehicle engine bays or sealed outdoor enclosures), our design engineers advise derating continuous operational power by 20% to 30% below the converter’s nominal nameplate rating. Furthermore, when powering inductive loads like DC motors, solenoids, or cooling compressors, users must account for inrush currents that can reach 3x to 6x continuous running current.
What are the evaluation order minimums (MOQ) and production lead times for French buyers?
Standard catalog converters feature a low minimum evaluation order quantity starting from just 5 units, enabling design engineering teams to thoroughly evaluate functional prototypes before committing to mass production. High-power units (1000W+) can be sampled from 1–2 pieces. Standard delivery for sample evaluation batches typically takes 5–8 business days via express air courier, while volume production runs are completed within 15–25 business days on FOB or EXW terms.
Can Eltrum modify firmware, output voltages, or cable connectors for OEM batches?
Yes. Shenzhen Eltrum Electronic offers comprehensive OEM and ODM support. We routinely produce customized units featuring tailored non-standard output voltages (such as 13.8V, 19V, or 28V), custom-length wire harnesses, weather-resistant industrial connectors (like Deutsch, Amphenol, or Anderson multipole plugs), RS485 communication protocols, and dedicated private-label enclosure silkscreening.
Require a Custom Buck Voltage, Specific Amperage, or Technical Quote?
Connect directly with our senior power application engineers. We evaluate your voltage parameters, thermal boundaries, and quantity requirements to deliver a comprehensive factory quotation.