Smart 36V Lithium Battery Charger DC 12V to 43.8V 13A
- TopologyStep-Up CC/CV Charger
- Input Voltage9.0V - 16.0V DC
- Output Setting43.8V DC (12S LiFePO4)
- ProtectionThermal, Reverse, Over-V
500+
Standard Power Architectures
IP68
Vacuum Silicone Sealed Protection
96.5%
Peak Conversion Efficiency
130+
Global Jurisdictions Supplied
Engineered DC-DC Power & LiFePO4 Conversion Modules
Heavy-duty synchronous rectification topologies, cast-aluminum heatsinks, and proprietary wide-range regulation circuits tailored for tropical resilience and long continuous duty cycles.
1500W High-Power Buck-Boost DC Stabilizer with RS485
- TopologyFour-Switch Non-Inverting
- Input Range10.0V - 60.0V DC Dynamic
- Output Rails12V / 24V / 28V / 48V
- InterfaceRS485 Telemetry Bus
Isolated 18-90V to 12V 10A Heavy Industrial Converter
- Isolation Barrier1500V DC Galvanic Transformer
- Input Vector18V - 90V Continuous
- Regulated Output12V DC @ 10A Continuous
- EnclosureAnodized Aluminum Die-Cast
24V to 12V 85A-100A Step-Down High Current Buck
- ArchitectureMultiphase Interleaved Buck
- Input Range18V - 35V DC Traction/Bus
- Continuous Output13.8V / 12V @ 100A (1200W)
- Efficiency96.5% Synchronous Rec.
600W IP65 Waterproof LiFePO4 & NMC Multi-Voltage Charger
- Mains Input90V - 264V AC Universal
- Target Outputs14.6V, 29.2V, 43.8V, 58.4V
- Protection ClassHermetic Resin Encasement
- Cooling ModeConduction Passive Chill
30-90V Wide-Input to 24V 20A E-Mobility Buck Module
- Input Spectrum36V / 48V / 60V / 72V Packs
- Aux Output24.0V DC (Industrial Relays)
- Transient RatingISO 7637-2 Surge Suppressed
- PottingFlame-Retardant UL94V-0
400W Smart Battery-to-Battery (B2B) Booster Charger
- Smart AlternatorEuro 6 / Tier 4 Compliant D+
- Profile Curves3-Stage Adaptive CC/CV/Float
- Housing BuildSubmersible Cast Alloy
- Reverse Drain< 1mA Quiescent Current
8-40V Ultra-Wide to 13.8V 30A Marine Power Conditioner
- Voltage Anchor13.8V Clean Base-Station Rail
- Input ToleranceDeep Cranking Sag down to 8V
- Ripple Noise< 50mVp-p High Isolation
- Ingress RatingIP68 Fully Sealed Chamber
Environmental Adaptation
Optimizing DC-DC Architectures for Singapore's Operating Realities
Singapore's equatorial maritime conditions demand power electronics with higher thermal margins, superior anti-corrosion barrier integrity, and resilience to relentless ambient humidity.
Corrosive Marine Salt Spray
Operating across the Singapore Strait, Jurong Island offshore installations, and PSA port terminals exposes circuitry to continuous airborne halide ions. Our converter enclosures leverage aluminum die-casting coated with double-pass fluorocarbon electrostatic shielding, combined with complete internal vacuum-filled potting using automotive-grade thermal silicone. This design prevents salt-mist dendrite growth and dielectric tracking across high-voltage traces.
Thermal Dissipation at 85%+ RH
Singapore exhibits average ambient temperatures exceeding 31°C paired with saturated relative humidity. In non-isolated and isolated topologies, internal thermal trapped heat can rapidly cause power MOSFET gate breakdown. Eltrum uses low internal resistance planar transformers and synchronous MOSFET rectifiers achieving up to 96.5% efficiency, transferring internal core heat through high-density silicone potting directly to outer dissipation ribs.
EMC & High-Density Grid Integration
Singapore's stringent technical standards (SS 638, SS 546) require strict adherence to electromagnetic interference bounds. Our converters integrate multi-stage LC input/output pi-filters and toroidal chokes that suppress switching transients, ensuring clean rails without causing harmonics or high-frequency coupling into sensitive marine communications, subsea sonars, or smart commercial telemetry.
Application Engineering
Mission-Critical Deployments Across Singapore Industry
Targeted voltage conversion platforms enabling electrification across maritime craft, autonomous port logistics, and commercial utility fleets.
Harbor Craft & Electric Ferry Fleets
In alignment with the Maritime and Port Authority of Singapore (MPA) directive requiring all new harbor craft to be fully electric or net-zero capable by 2030, our high-power DC-DC converters step down 600V/700V energy storage strings to stable 24V and 12V auxiliary DC buses. These units supply navigation gear, safety actuators, radar systems, and interior lighting without risk of galvanic corrosion between the vessel hull and electrical grounds.
Port AGVs & Warehouse Robotics
At automated transshipment hubs like Tuas Port, autonomous guided vehicles (AGVs) and heavy-duty automated forklifts rely on 48V or 72V LiFePO4 traction batteries. Our isolated DC-DC converters manage rapid transients from regenerative braking while delivering a stable 12.0V rail to LiDAR sensors, embedded RTK computing modules, and vision cameras, completely eliminating ripple-induced logic resets.
Renewable Island Microgrids & ESS
Floating solar installations at reservoirs like Tengeh and Jurong Island distributed storage projects face continuous thermal cycling. Our buck-boost converters bridge the gap between varying photovoltaic bus outputs and fixed battery charging banks, preserving optimal maximum power point tracking (MPPT) inputs and protecting communication gateways across wide DC input swings.
| Deployment Domain | Common Input Dynamics | Target Output Rail | Recommended Topology | Key Protection Specification |
|---|---|---|---|---|
| Singapore Electric Harbor Craft | 96V - 144V Marine Traction | 13.8V DC (Buffer to AGM Aux) | Isolated DC-DC Buck Module | 1.5kV AC Galvanic Isolation Barrier |
| PSA Warehouse Robotic Fleets | 36V - 72V LiFePO4 Traction | 24.0V DC (Industrial PLC) | Synchronous Buck Converter | Active Overvoltage Clamping <30V |
| Tropical Off-Grid Telemetry | 9.5V - 34.0V Solar/Alkaline | 12.0V Clean Instrument Rail | Four-Switch Buck-Boost | Continuous Reverse Polarity Guard |
| Heavy Logistics Prime Movers | 24V Alternator (Load Dump) | 12V Telematics & Fleet Cam | High-Current Buck (85A-100A) | ISO 7637-2 Pulse 2a/5a Suppression |
Future Trends
Macro Electrification Trajectories in Singapore & ASEAN
High-density power electronics are moving from simple voltage conversion to connected, intelligent energy routing platforms.
Intelligent RS485 & CAN Telemetry
Modern DC infrastructure projects across Singapore increasingly reject unmonitored power components. Factory systems now require active telemetry including internal junction temperature, real-time current draw, thermal throttling flags, and cycle-by-cycle efficiency. Our latest generation integrates isolated RS485 Modbus RTU, allowing centralized vessel and vehicle PLCs to dynamically manage power load shedding.
Wide-Bandgap Gallium Nitride & SiC
As space constraints intensify within dense automated handling vehicles and battery compartments, traditional silicon MOSFETs face thermal density limits. Eltrum is deploying Silicon Carbide (SiC) Schottky diodes and planar magnetic transformers, cutting switching losses by more than 40% and shrinking module footprints while maintaining rugged reliability in 50°C ambient environments.
Transition to Safe LiFePO4 Chemistries
Driven by Singapore Civil Defence Force (SCDF) fire-safety priorities in enclosed marine spaces and underground stations, Lithium Iron Phosphate (LiFePO4) has largely superseded ternary chemistries. This shift requires charging stages with precise absorption cutoffs (3.65V/cell) and zero-overshoot constant-current to constant-voltage (CC/CV) profiles, an engineering feature standard in our smart chargers.
Direct Manufacturer
Shenzhen Eltrum Electronic Co., Ltd.
Established in 2015 in Shenzhen's Hangcheng technology corridor, Eltrum operates an advanced manufacturing facility specializing in custom, ruggedized DC-DC converters, LiFePO4 charging systems, and industrial power modules. Our factory has been verified onsite by third-party inspection firms, with legal operating status and export credentials confirmed.
- ISO 9001 Certified Quality Management: Automated SMT placement, precision AOI optical inspections, and continuous process tracking.
- Full Potting & Submersion Testing: In-house vacuum resin encapsulation with 100% soak and helium leak testing for IP67/IP68 compliance.
- Rigorous Full-Load Burn-In: Every production unit undergoes elevated temperature soak testing under dynamic load cycles before shipping.
- Engineering Direct OEM/ODM: Flexible support from 5-unit sample evaluations to container-load supply runs, including custom housing molds and firmware development.
Procurement FAQ
Frequently Asked Questions by Singapore Engineering Teams
Key questions on trade compliance, shipping lead times, customs clearance, and electrical integration.
How do Eltrum converters meet Singapore safety and electrical certification frameworks?
Our converters are designed and verified against relevant international electrotechnical standards, carrying full CE and RoHS documentation under our ISO 9001 quality system. For industrial DC systems, maritime auxiliaries, and low-voltage vehicle installations not connected to the public AC grid, our DC-DC modules meet the immunity and emission requirements of EN 55032 / EN 55035 and ISO 7637-2 for transient conduction. Official Declarations of Conformity and independent laboratory test files are provided alongside technical datasheets.
What are the typical sea and air freight lead times from Shenzhen to Singapore?
Shenzhen's proximity to Singapore offers distinct supply-chain efficiencies. Air freight shipments dispatched via Shenzhen Bao'an (SZX) or Hong Kong (HKG) typically clear through Changi Airfreight Centre within 2 to 4 working days. For containerized projects or palletized marine equipment via ocean freight from Yantian or Shekou to the Port of Singapore (PSA), typical sea transit takes 4 to 6 days. Standard sample orders ship within 48 to 72 hours.
Why is galvanic isolation strongly recommended for harbor craft and steel vessel hulls?
In steel-hulled harbor craft, unisolated converters share a common negative rail between high-voltage battery arrays and auxiliary systems. Any stray current or leakage loop across humid, salt-mist exposed framing can establish accelerated electrolytic cells, corroding thru-hull fittings, propeller shafts, and hull plates. An isolated DC-DC converter breaks this direct electrical continuity with a 1500V+ transformer barrier, keeping both grounds fully separated and preventing destructive electrolysis.
How do vacuum potting materials perform under Singapore's continuous ambient humidity?
Standard polyurethane or hard epoxy coatings often crack over repeated thermal cycles, allowing humid equatorial air to enter via microscopic voids and condense inside the circuit. Eltrum uses vacuum-injected, flexible two-part thermal silicone resin with UL94V-0 flammability ratings. This silicone forms a hermetic, elastic bond over all SMD components, magnetics, and heat sinks, maintaining dimensional stability from -40°C to +85°C while repelling moisture and corrosive salt mist.
Can charging parameters and RS485 communication protocols be customized for local BMS designs?
Yes. We regularly supply Singapore system integrators with customized firmware profiles. Whether you require specific multi-stage LiFePO4 absorption voltages, custom low-temperature charge limits, automated wake-up pulses for locked BMS protection circuits, or custom Modbus register addresses for PLC communication, our engineering team can calibrate and flash the target firmware prior to final burn-in and packaging.
What commercial payment, currency, and warranty terms apply to Singapore-based firms?
We accept transactions in USD, EUR, and SGD through telegraphic transfer (T/T), PayPal, or secure Escrow. Trade terms include standard Incoterms 2020: FOB Shenzhen, CIF Singapore, or DDP direct to your facility in Jurong, Tuas, or Loyang. All industrial and waterproof DC-DC converters include our comprehensive factory warranty, supported directly by our engineering department for rapid replacement and diagnostic support.
Direct Technical Inquiries
Accelerate Your Power Engineering Deployment
Contact our technical design team directly for input matching, custom enclosures, and volume quotations. We evaluate your voltage ranges, environmental conditions, and mechanical constraints to deliver an optimized power solution.
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