What is the minimum order quantity for Eltrum DC-DC converters?

Most standard converter and charger models start from 5 units, which lets engineers validate samples before volume orders. Selected high-power models are available from 1–2 units, and some industrial isolated modules start at 50 units.

Do you offer OEM and ODM customization?

Yes. Shenzhen Eltrum Electronic Co., Ltd. offers OEM service, design service and buyer-label production, including custom input ranges, output voltage/current, connectors, housings, RS485 communication and charging curves.

Which certifications do your products carry?

Our converter and charger series are produced to CE and RoHS requirements under an ISO 9001 quality management system. Certificate copies can be requested by email for specific models.

When should I choose a buck-boost converter instead of a buck converter?

Choose buck-boost when your input voltage can fall below and rise above the required output, for example a 12V battery that sags to 9V under load and rises to 14.6V while charging. A buck converter only works when input stays above output.

Can a DC-DC battery charger charge a LiFePO4 house battery from a vehicle alternator?

Yes. A battery-to-battery DC-DC charger regulates the alternator or starter battery input and delivers a controlled CC/CV profile (for example 14.6V for 12V LiFePO4), protecting both batteries in RV, truck and marine dual-battery systems.

What payment and delivery terms are accepted?

We accept T/T, PayPal and Escrow in USD or CNY, with FOB or EXW delivery terms.

China Best Isolated Power Module Factories & Exporter serving the Baucau market

Shenzhen Eltrum Electronic Co., Ltd. Delivers Industrial-Grade DC-DC Isolated Converters, Stabilized Buck-Boost Systems, and Harsh-Environment Battery Charging Solutions across Timor-Leste.

Engineered Power Catalog

Precision Converters & Chargers Built for Extreme Conditions

Our onsite-verified Shenzhen manufacturing base produces over 500 standardized models with CE, RoHS, and ISO 9001 compliance. Explore eight core units engineered for high isolation, fluctuating solar inputs, and uncompromised continuous load reliability in Baucau.

Featured

Smart 36V Lithium Battery Charger DC 12 Volt to DC 43.8 Volt Waterproof Chargers 13A

Smart 36V 13A Waterproof LiFePO4 DC-DC Charger (12V to 43.8V)

TopologyBoost DC-DC Charger
Input / OutputDC 12V / 43.8V 13A
EnclosureIP67 Fully Potted

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Galvanic Isolation

Isolated DC-DC Converter 18-36V 36-75V to 24V 5A 120W

18-75V Ultra-Wide Input to 24V 5A Isolated DC Module (120W)

Isolation1500VDC Optocoupler
Input Range18–36V / 36–75V
EfficiencyUp to 92% Peak

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Telecom Grade

36-75V to 12V 10A Industrial Isolated Converter Module

Output Power12V DC @ 10A (120W)
GroundingFull Split Grounds
ProtectionOCP, OVP, Short Circuit

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5V High Current

Isolated 18-75V to 5V 20A 100W Power Supply

18-75V to 5V 20A High-Amperage Isolated Regulator (100W)

Output Rail5.0V Precision (±1.5%)
Current Cap20A Continuous Load
Thermal MgmtExtruded Aluminum Base

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Heavy Duty

1500W High Power Buck-Boost Converter 10-60V

1500W Buck-Boost Converter with RS485 Interface (10-60V Input)

Input Range10V – 60V Continuous
Programmable12V / 24V / 28V / 48V
TelemetricsMODBUS-RTU via RS485

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Stabilizer

10-44V to 12V 50A 60A Buck Boost Regulator

10-44V to 12V 50A/60A High Current Buck-Boost Stabilizer

Nominal In12V / 24V / 36V Bat Banks
Output Rail12.0V Stable (Up to 720W)
Vehicle InrushTolerates Cranking Sag

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Fleet Step-Down

24V to 12V 85A/100A Heavy Vehicle Step-Down Converter

Max Output100A Surge (1200W)
ApplicationCommercial Heavy Transport
CertificationsCE / RoHS / ISO 9001

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IP65 Waterproof

600W AC to DC Waterproof LiFePO4 Battery Charger

600W AC-DC Waterproof LiFePO4 Smart Battery Charger

AC Grid In90–264VAC Universal
Charge Curves14.6V / 29.2V / 58.4V CC/CV
Harsh ShieldSalt-Spray Resistant Potted

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Local Infrastructure Alignment

Engineering Power Modules for Baucau's Unique Operating Ecosystem

Operating hardware across Timor-Leste's second-largest municipal region presents intense technical challenges. From the coastal salt humidity of the Old Town (Vila Antiga) to the high limestone plateaus surrounding Cakalo Airport, electrical infrastructure demands industrial components that survive high thermal cycling and unstable source voltages.

Decentralized Mini-Grids & Solar Pumping

Rural sucos throughout Baucau rely extensively on off-grid photovoltaic arrays and battery energy storage systems (BESS). Fluctuations between charging solar strings and deep load sags frequently blow non-isolated electronics. Our ultra-wide input isolated DC-DC modules stabilize internal control rails for solar inverters, agricultural irrigation pump telemetry, and sub-distribution sensors without ground loops.

Telecommunications & Remote Microwave Repeater Towers

Cellular nodes dotting the mountainous ridgelines outside Baucau town frequently operate on floating or positive-ground 48VDC battery backup banks. Eltrum's transformer-isolated power supplies completely separate battery grounds from terminal network radios, edge routers, and camera monitoring feeds, mitigating destructive earth potential surges during tropical lightning events.

Marine Coastal Logistics & Transport Electrification

Along the Wetar Strait fishing hubs and commercial coastal routes connecting Dili, Baucau, and Lautém, marine transport fleets require moisture-tight electronics. Our silicone-encapsulated IP67 waterproof DC-DC LiFePO4 battery chargers prevent salt mist corrosion, maintaining 12V auxiliary electronics and auxiliary 36V/48V propulsion banks in utility fishing crafts.

Strategic Market Trajectory

Emerging Energy & Industrial Trends across Baucau

Industrialization and energy transition projects in eastern Timor-Leste are moving from rudimentary lead-acid setups toward high-efficiency solid-state architectures. As system integration standards advance, module selection dictates total operational lifespan.

The LiFePO4 Chemistry Migration

Traditional deep-cycle VRLA and flooded lead-acid batteries are rapidly being discarded across Baucau's municipal projects due to premature cell drying in equatorial heat. Modern LiFePO4 retrofits require stringent two-stage CC/CV charging curves and isolated DC balancing modules to prevent over-voltage degradation, elevating demand for dedicated smart chargers.

Hermetic Potting as a Non-Negotiable Standard

Engineers handling installations in coastal Timor-Leste increasingly disqualify open-frame power modules. Ambient humidity regularly exceeding 85%, coupled with tropical heat, triggers rapid dendrite growth and tin pest on exposed PCBs. Thermally conductive polyurethane and epoxy resin vacuum-potted modules have transitioned from an optional feature to a mandatory procurement specification.

Integration of Remote Field Telemetry (RS485/Modbus)

Infrastructure assets outside the main administrative center of Baucau are geographically isolated, rendering physical site inspections expensive. Municipal power contractors and telecom fleet operators increasingly mandate RS485 communication ports on power modules to remotely extract real-time input voltages, load thermals, and fault flags to central control desks.

Direct Shenzhen OEM/ODM Factory

Precision Power Engineering Backed by Rigorous QC

Founded in 2015, Shenzhen Eltrum Electronic Co., Ltd. operates an onsite-verified production base encompassing advanced SMT placement lines, high-frequency transformer winding bays, and dedicated environmental burn-in suites. Galvanic isolated DC-DC conversion represents the historical cornerstone of our engineering group, informing our full product series of buck, boost, and intelligent battery charging modules.

Every module destined for international export to hubs like Baucau undergoes stringent 100% full-load thermal burn-in, dielectric withstand testing (Hi-Pot up to 1500VDC), and automated ripple analysis. With standard MOQ starting at just 5 units, we eliminate capital barriers for system integrators, providing rapid custom prototyping, tailored connector assemblies, and customized voltage calibrations for volume contract distribution.

✓ ISO 9001:2015 Quality Management ✓ CE European Conformity ✓ RoHS Compliant Eco-Standards ✓ Custom Enclosure & PCB OEM/ODM

Shenzhen Eltrum Electronic Co., Ltd. Manufacturing Facility

Burn-in Load and Dielectric Withstand Testing

500+

Standard Power Models

130+

Global Export Nations

3,000m²

Production Floor Space

5 Units

Standard Sample MOQ

Procurement & Technical Support

Frequently Asked Questions for Baucau Procurement Teams

Clear, direct answers regarding electrical specifications, environmental resilience, logistics to East Timor, and OEM customization processes.

Why must we specify galvanic isolation instead of lower-cost buck regulators in Baucau?

Non-isolated converters share a common negative ground between the input source and the output load. In municipal or remote setups where solar arrays, engine alternators, and 48V battery banks are connected across varying physical ground locations, ground loop currents and lightning induction surges travel unimpeded. Transformer-isolated power modules establish a complete dielectric galvanic barrier (typically rated at 1500VDC), safely isolating high-voltage transients on the primary side and protecting sensitive downstream communications, microcontrollers, and medical electronics from destructive common-mode voltages.

How do Eltrum power modules withstand the high humidity and coastal salt mist of eastern Timor-Leste?

Our modules designed for harsh-duty deployment utilize vacuum-impregnated potting compounds based on automotive-grade silicone or high-conductivity epoxies. The internal circuits are entirely enclosed within an anodized, die-cast aluminum chassis rated IP65 to IP67. This prevents atmospheric moisture, airborne salt particulates, insects, and condensation from contacting electronic solder joints, effectively eliminating failures caused by electrolytic corrosion and tin whiskering.

What are the typical logistics routes, shipping timelines, and export terms for delivery to Baucau?

We provide direct international exports from our factory in Shenzhen via FOB Shenzhen, CIF Dili, or air express door-to-port (DHL, FedEx, UPS) for prototype validation runs. Sea freight shipments typically transit via Singapore or Surabaya before docking at the Port of Tibar (Dili), where ground transport takes consignments east via the Northern Coastal Highway into Baucau. Standard ocean transit averages 18 to 28 days, whereas expedited air courier sample delivery typically arrives within 5 to 8 working days.

Can Eltrum calibrate custom charge profiles for locally sourced LiFePO4 and LTO lithium packs?

Yes. Through our comprehensive ODM engineering department, Shenzhen Eltrum can program microcontroller-governed constant current / constant voltage (CC/CV) profiles specifically matched to your battery cell manufacturer's recommended absorption, float, and cut-off thresholds (such as 14.6V, 29.2V, 43.8V, or 58.4V). We also integrate custom temperature-coefficient compensation via external thermistor probes to prevent thermal runaway in un-airconditioned battery sheds.

What minimum order quantity (MOQ) applies, and how can engineers request qualification samples?

Unlike many high-volume tier factories requiring hundreds of units per purchase order, Eltrum maintains a flexible policy: standard converter and charger samples can be ordered starting from just 5 units (with select high-power 1500W modules starting from 1–2 units). This enables local electrical contractors, NGO infrastructure managers, and telco engineers in Baucau to execute rigorous field validation before committing to batch container volumes.

Connect Directly with Eltrum Power Engineers

Looking for verified datasheets, 3D CAD dimensions, custom voltage steps, or tender compliance files for upcoming projects in Baucau? Access our full product portfolio instantly.

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