CE Certified
Smart 36V Lithium Charger 12V to 43.8V 13A Waterproof
- TopologyBoost Charger
- Input / Output12V DC → 43.8V DC
- Rating / Protection13A / IP67 Potted
Enterprise Product Line
High-Reliability Power Modules & Lithium Charging Systems
Precision-engineered topologies manufactured under strict CE (LVD/EMC) and RoHS compliance guidelines for vehicles, marine, off-grid systems, and robotics.
CE Certified
600W Waterproof LiFePO4 AC-DC Smart Charger
- Input Voltage90–265V AC Universal
- Output Voltage14.6V – 58.4V Select
- EnclosureIP65 Cast Aluminum
CE Certified
1500W Wide-Input Buck-Boost Converter with RS485
- Input Window10–60V DC Wide
- Regulated Output12V / 24V / 28V / 48V
- Digital ControlRS485 Bus Interface
CE Certified
Industrial Isolated DC-DC Converter 18–90V to 12V 10A
- Galvanic Isolation1500V DC Dielectric
- Input / Output18–90V → 12V 120W
- StandardTelecom & Forklift Grade
CE Certified
Heavy Commercial Buck Converter 24V to 12V 85A–100A
- Input / Output18–35V → 12V (Fixed)
- Continuous Current85A / 100A Peak
- ApplicationBus, Truck & Fleet Systems
CE Certified
400W Dual-Battery DC-DC Smart LiFePO4 Charger
- Wide Input Range10–36V DC Alternator
- Multi-Stage Profiles14.6V / 29.2V / 43.8V
- System SafetyNo Alternator Overloading
CE Certified
Waterproof Step-Up Boost Regulator 12V to 48V up to 20A
- Step-Up Conversion9–16V DC → 48V DC
- Continuous Output12.5A / 15A / 20A (960W)
- ProtectionOver-Current, OTP, OVP
CE Certified
E-Mobility High-Voltage Step-Down 30–90V to 24V
- Wide Input Ratio30–90V (48V/60V/72V Packs)
- Regulated Output24V at 10A–20A
- EncapsulationEpoxy Solid Potting
Procurement Intelligence
Future Sourcing & Architectural Trends in Power Supplies
Essential considerations for technical procurement directors, system architects, and OEM product managers.
Shift Toward Universal Lithium Charging Profiles
Procurement teams are shifting away from chemistry-locked charging blocks. Future-proof power platforms utilize micro-controlled, software-configurable multi-stage algorithms (Bulk, Absorption, Float) compatible across LiFePO4, Ternary Lithium (NMC), and Lead-Acid chemistries without physical hardware revisions.
Telemetry Integration: RS485 & CAN Bus
Switched-mode DC-DC converters and AC chargers are no longer isolated black boxes. System integrators now mandate bidirectional communication via RS485 (Modbus RTU) or CAN bus for active current limiting, temperature-derating tracking, and live predictive failure telemetry directly to the central vehicle/IoT controller.
High Power Density & Harsh-Environment IP67
The convergence of wide bandgap semiconductor topologies (GaN/SiC) and silicone thermally conductive potting has elevated baseline conversion expectations to ≥94% efficiency. This allows fanless, dustproof, and submersible IP67 form factors capable of sustained operation in high-vibration engine bays and marine hulls.
Technical Topology Comparison Matrix for B2B Procurement Teams
Selecting the optimal power conversion topology prevents field failures, avoids unnecessary thermal overhead, and minimizes total product BOM cost. Refer to the operational matrix below when selecting catalog items or commissioning custom ODM projects:
| Conversion Topology | Typical Voltage Dynamics | Primary Industrial Use Case | Isolation Level | Thermal / Efficiency Benchmark |
|---|---|---|---|---|
| Synchronous Buck | Vin must exceed Vout by ≥ 2.5V | 24V/48V Bus Stepping to 12V Auxiliary Systems | Non-Isolated (Common Ground) | 93%–96% Peak Efficiency |
| Non-Isolated Boost | Vin remains lower than Vout threshold | 12V Alternator charging 24V/36V/48V Secondary Banks | Non-Isolated (Common Ground) | 91%–95% Peak Efficiency |
| Automotive Buck-Boost | Vin swings dynamically above and below Vout | Vehicle cranking stabilization (9V to 16V swing into steady 12.0V) | Non-Isolated (Common Ground) | 89%–94% Peak Efficiency |
| Transformer Isolated DC-DC | Ultra-wide inputs (e.g., 18–36V, 36–75V, 18–90V) | Telecom Racks (-48V), Forklifts, AGVs, Medical Systems | Galvanic Isolation (1500V DC Breakdown) | 86%–91% Galvanic Stability |
Need guidance sizing inductor saturation, output ripple filtering, or burst surge protection? Our on-site R&D team reviews engineering schematics prior to production quoting.
Manufacturing Authority
Engineered by Shenzhen Eltrum Electronic Co., Ltd.
Direct manufacturer backing ensures trace-level component accountability, audited production lines, and direct technical liaison.
Over a Decade of Specialized Power Conversion Excellence
Founded in 2015 in Shenzhen's high-tech manufacturing corridor, Shenzhen Eltrum Electronic Co., Ltd. has established itself as a premier producer and exporter of ruggedized DC-DC converters, smart LiFePO4/Lithium-Ion chargers, and isolated power modules. Backed by an on-site verified ISO 9001 production ecosystem, our engineering team controls the entire lifecycle from PCB layout, magnetic winding, and firmware programming to precision aluminum potting.
Our solutions have been verified and deployed in more than 130 countries worldwide, supporting OEM and tier-one integration partners in commercial trucking, marine, off-grid energy storage, electric golf carts, telecom base stations, and autonomous robotics.
Rigorous CE Compliance
Products conform to Low Voltage Directive (LVD 2014/35/EU) and Electromagnetic Compatibility (EMC 2014/30/EU), with formal technical files and certificates available.
Low Evaluation MOQ
Engineers can order as few as 1–5 evaluation units for rapid functional benchmarking and validation prior to commiting to volume container shipments.
Custom OEM/ODM Engineering
Tailored parameters including non-standard input/output voltages, custom thermal enclosures, wiring harness terminations, and unique CC/CV charging thresholds.
100% Full-Load Burn-In
Every single manufactured unit is subjected to thermal cycling and full-load burn-in testing to eliminate early life component infant mortality in field operations.
Clear Answers for Technical Buyers
Frequently Asked Procurement & Engineering Questions
Direct responses regarding technical specifications, compliance verification, shipping logistics, and custom capabilities.
How do we verify CE compliance declarations for customs and regulatory audits?
Shenzhen Eltrum Electronic Co., Ltd. issues genuine Certificates of Conformity and full laboratory test reports covering both EN 62368-1 / EN 60335 electrical safety (LVD) and EN 55032 / EN 55035 radiated and conducted emissions (EMC). Verified test files with manufacturer declaration of conformity (DoC) documents can be provided for smooth customs clearance across EU and global borders.
When should an isolated DC-DC converter be specified over a non-isolated model?
An isolated DC-DC converter is structurally required when electrical ground planes must remain completely independent. Common cases include breaking ground loops that induce sensor noise, positive-ground telecom distribution systems (-48V), heavy industrial equipment where traction battery switching surges could damage sensitive low-voltage PLCs, and safety systems requiring 1500V+ isolation.
What custom development options are available under OEM/ODM agreements?
We provide full hardware and firmware design customization, including custom input/output voltage windows (e.g., non-standard 72V to 13.8V conversions), custom multi-stage charging algorithms for bespoke battery pack chemistries, proprietary potting compound formulations for extreme temperatures, custom aluminum extrusion heatsinks, and custom terminal blocks or automotive connectors.
How do your DC-DC battery chargers protect vehicle alternators from overload?
Standard lead-acid vehicle alternators overheat and fail when connected directly to modern LiFePO4 house batteries due to the low internal resistance and high charge acceptance of lithium cells. Our DC-DC battery-to-battery chargers precisely govern current draw, acting as a managed buffer that stabilizes input load regardless of engine idle conditions while delivering an accurate CC/CV charging profile to the auxiliary pack.
What are the standard production lead times, sample policies, and Incoterms?
Standard catalog units can be dispatched for engineering evaluation within 3 to 7 working days, with sample minimum order quantities starting at just 5 units. Batch production for regular OEM purchase orders is typically completed in 15 to 25 business days. We support FOB Shenzhen, EXW, CIF, and door-to-door DDP air/sea freight configurations via T/T, PayPal, or Escrow.
How is product environmental resilience verified for marine and outdoor mounting?
Our ruggedized series undergo a vacuum-assisted epoxy or silicone potting procedure that completely encapsulates the internal PCBA. This solid encapsulation delivers continuous IP65 to IP67 ingress protection against water submersion, prevents salt-spray corrosion in coastal and marine engine bays, and dampens mechanical vibration stresses according to standard automotive transport profiles.
Connect Directly with Our Power Engineering Team
Submit your electrical requirements (Input Range, Desired Output Voltage, Continuous Current, Ingress Protection, and Volume) for a detailed technical proposal and official factory quotation within 24 business hours.