IP67 Waterproof
Topology: Buck Step-Down
Input Range: 12V / 24V Nominal
Output: 5V DC @ 5A (25W)
23+
Years Engineering Expertise
10+
Automated Production Lines
ISO
9001:2015 & SGS Onsite Audited
US Hub
Domestic Warehouse Fulfillment
Catalog Solutions
Precision Battery Charger Modules & Power Electronics
Engineered to withstand rigorous ambient thermal profiles, dirty power inputs, and continuous duty cycles. Browse our direct-from-factory catalog deployed throughout North American industrial networks.
Pure Sine Wave
DC Bus: 12V / 24V / 48V DC
AC Output: 110V / 220V Clean Sine
Surge Rating: 200% Nominal (3 sec)
Galvanic Isolation
HV Bus: 48/60/72/84/96V DC
Regulated Out: 24V DC @ 2.5A
Dielectric: 1500V Isolation
Industrial Micro
Efficiency: Up to 96%
Rating: 24V to 12V DC @ 3A
Sealing: Epoxy Vacuum Potted
Wide-Range Buck-Boost
Dynamic Range: 8V to 40V DC Ultra-Wide
Float Voltage: 13.8V Automotive Float
Current Limit: 5.0A Precision Peak
High-Current Stabilizer
Continuous Out: 20A Continuous (276W)
Cooling: Extruded Aluminum Fin
Protection: Over-Temp / OVP / OCP
Phase & Frequency
Configuration: 1-Phase In / 3-Phase Out
Frequency: 50Hz / 60Hz Selectable
Motors: Heavy Inductive Startup
Telemetry Isolated
High Bus Range: 48V–96V Wide DC
Output Bus: 12V DC Regulated @ 5A
Noise Level: <50mV Ripple / Noise
Market Intelligence
Macro Energy Dynamics & Sourcing Trends Across Houston, TX
As the energy capital of North America, Houston sits at the convergence of traditional petrochemical processing, massive port modernization, and an aggressive rollout of commercial Battery Energy Storage Systems (BESS). Engineering teams demand conversion hardware tailored for local industrial realities.
ERCOT Resilience & Distributed Microgrids
The operational volatility of the Texas ERCOT power grid post-Winter Storm Uri has transformed battery charger modules from auxiliary hardware into mission-critical assets. Commercial substations, chemical plants, and municipal pumping stations throughout Harris, Montgomery, and Fort Bend counties are mandates-driven to install rugged dual-redundant DC float rectifiers and uninterruptible switchgear battery banks capable of extended black-start duty.
Ship Channel Electrification & Marine Logistics
The Port of Houston—driving billions in trade along the 52-mile waterway—is actively decarbonizing terminal handling fleets, drayage trucks, and tugboat shore-power auxiliaries. This transition mandates high-current, IP67 sealed DC-DC buck converters and modular multi-chemistry battery chargers capable of withstanding corrosive saline humidity, constant sulfur vapors, and extreme vibrational shock on dockside gantry cranes.
Severe Subtropical Ambient Thermal Management
Houston’s unique Gulf Coast climate presents dual challenges of 100°F+ ambient heat combined with 90%+ relative humidity and seasonal flooding. Standard consumer or light commercial battery modules fail prematurely due to thermal throttling or moisture-induced PCB dendrite growth. Specifiers require extruded anodized aluminum chassis, vacuum-sealed potting, and high-temperature electrolytic capacitors rated up to 105°C for continuous operation.
Field Implementations
High-Reliability Applications Engineered for Greater Houston
Our power supplies, step-up/step-down converters, and charging systems serve continuous operation environments where unplanned downtime directly translates to astronomical financial risk.
Petrochemical & Refining
Refinery Process Automation & SCADA Telemetry
Along the petrochemical corridors of Baytown, Deer Park, and Pasadena, critical remote terminal units (RTUs), hazardous gas detection sniffers, and pipeline actuators demand uninterrupted power. Our galvanically isolated 48V/96V-to-24V DC converters isolate delicate microelectronics from inductive surges caused by massive pipeline compressors and pumps.
Offshore & Subsea Services
Marine Auxiliaries & Workboat Hybrid Energy
Operating offshore rigs and offshore supply vessels (OSVs) departing Galveston Bay requires robust conversion units. Integrated buck-boost converters and heavy-duty 12V/24V stabilizers keep communications equipment, radar, and satellite receivers (including Starlink Mini mobile maritime setups) locked at clean operational voltages during generator voltage drops.
Industrial Warehousing & Supply Chain
Material Handling & Automated Guided Vehicles (AGVs)
With hundreds of distribution centers spread across Northwest Houston, Katy, and The Woodlands, automated warehouse infrastructure depends on high-capacity smart battery chargers. Our float/trickle CV-CC modular chargers handle rapid battery turnaround for LiFePO4 and lead-acid motive packs across Class I, II, and III material handling equipment.
| Houston Operating Environment | Common Electrical Threat | Varnix Architectural Advantage | Recommended Module Family |
|---|---|---|---|
| Refinery & Tank Farm SCADA | Common-mode ground voltage & high-voltage relay noise | 1500V optoelectronic & transformer isolation with zero ground loop | Isolated DC-DC Series (48V/72V/96V to 12V/24V) |
| Houston Ship Channel Marine Vessels | Salt air galvanic corrosion, engine cranking voltage sag | Complete epoxy vacuum potting, 8V–40V buck-boost regulation | IP67 Stabilizer & DC-DC Auto Buck-Boost Line |
| Substation BESS & Telecom Plants | Ambient temperatures exceeding 45°C inside enclosures | Thermal derating optimization, military-grade aluminum finning | Embedded Rectifier Systems & Smart Chargers |
| Off-Grid Utility Monitoring Stations | Harmonic line distortion, inverter output clipping | Pure sine wave inverter with total harmonic distortion (THD) <3% | LCD Display DC-to-AC Pure Sine Inverters |
Factory Direct Reliability
Varnix Technology: Power Electronics Manufacturing Since 2003
With over two decades of dedicated production experience, Varnix Technology Co., Ltd. operates state-of-the-art power conversion facilities verified onsite by international auditing agency SGS. We do not simply rebrand OEM modules—we design printed circuit board layouts, wind transformers, calibrate digital control loops, and build custom enclosures tailored for demanding export projects.
Our 1,229 m² production facility houses 10+ precision assembly and testing lines, combining automated wave-soldering, CNC chassis drilling, curing ovens, and multi-tier burn-in racks that subject every single unit to real-load heat stress before release.
- ISO 9001:2015 Audited Systems
- US Domestic Warehouse Inventory
- CE, RoHS, & FCC Compliance
- 100% Full-Load Burn-In Testing
- Direct Engineering OEM Support
- Contract-Guaranteed Defect Coverage
Main Production Hall
Precision Assembly Line
Full-Load Aging Racks
QC & Oscilloscope Verification
Procurement Clarity
Frequently Asked Questions for Houston & Texas Engineers
Key technical, logistics, and compliance considerations addressed directly by our power engineering and international trade support team.
Can Varnix supply battery charger modules directly from US domestic stock to Texas job sites? +
Yes. We maintain active inventory in our US overseas warehouse facilities, allowing expedited dispatch of high-demand DC-DC buck/boost converters, marine stabilizers, and smart battery chargers directly to Houston, Dallas-Fort Worth, and Austin metro areas within 2–4 business days. Specialized custom OEM runs, ultra-high-power rectification units, and project-specific voltage profiles ship directly from our ISO 9001 certified manufacturing headquarters under standard DDP, CIF, or FOB terms.
How do Varnix charging modules handle the extreme Gulf Coast summer humidity and heat? +
Standard commercial power modules experience thermal breakdown when ambient junction temperatures cross 60°C. Varnix modules intended for Texas outdoor deployment feature solid aluminum die-cast heat-sink enclosures with high-conductivity silicone thermal potting. Our circuits employ 105°C-rated long-life Japanese electrolytic capacitors, planar magnetics, and automated thermal throttling algorithms that protect power MOSFETs against runaway junction heat during sustained 115°F+ enclosure heat soak.
Are your battery charger modules compatible with both lithium (LiFePO4) and legacy flooded lead-acid batteries? +
Yes. We manufacture micro-controller-managed multi-stage chargers supporting programmable charge curves. For classic AGM, Gel, and flooded lead-acid banks used in backup diesel generator skids, the units deliver bulk, absorption, and temperature-compensated float stages. When configured for modern Lithium Iron Phosphate (LiFePO4) energy storage, the charger transitions into constant current/constant voltage (CC/CV) modes without float voltage overcharging, and features integrated BMS restart pulse triggers.
Why is galvanic isolation critical for DC-DC converters in petrochemical and oilfield operations? +
In harsh oilfield and refining operations, large motor drives, drilling drives, and high-current welding machinery introduce substantial ground potential shifts and severe common-mode voltage spikes across electrical grounding systems. Non-isolated converters share a common negative bus, allowing ground currents to conduct through sensitive telemetry cards, PLC logic inputs, and industrial sensors. Varnix isolated DC-DC converters offer 1500VDC to 3000VDC dielectric breakdown thresholds, completely isolating primary power from sensitive logic hardware.
What are your minimum order quantities (MOQ) and customization capabilities for OEM programs? +
Standard catalog products can be ordered in quantities as low as 1 to 10 sets for engineering prototyping, sample validation, and pilot installations. For custom OEM/ODM specifications—including modified DC input/output voltages, proprietary form-factor sheet metal housings, custom IP-rated wire harnesses, and private labeling—we offer agile engineering cycles with prototype delivery in 15–20 days and tiered production pricing based on annual commercial volume agreements.
What certifications and quality documentations accompany international delivery? +
All mass production series maintain full compliance with CE, RoHS, and FCC Title 47 Part 15 Class A/B electromagnetic radiation and immunity directives. Our facilities operate strictly under certified ISO 9001:2015 quality management procedures audited onsite by SGS. Each commercial batch includes complete factory burn-in test logs, incoming inspection tracking, and a formal Certificate of Conformance (CoC).
Request Custom Battery Charger Module Specifications
Consult with our senior power electronics engineers to review electrical topologies, thermal requirements, and local Texas warehouse availability for your project.