FLAGSHIP
Smart 36V 13A Waterproof Lithium Battery Charger
- TopologyDC-DC Boost CC/CV
- Input / Output12V DC → 43.8V DC (13A)
- Ingress RatingIP67 Encapsulated
- ApplicationEV, Marine, RV Lithium
500+
Standard Power Platforms
ISO 9001
Certified Production Lines
IP65 / IP67
Submersible Marine Protection
130+
Countries & Ports Supplied
Standardized & Customizable Architecture
Featured Industrial DC Battery Chargers & Converters
Tested rigorously under load cycling, mechanical vibration, and corrosive marine conditions to meet rigorous European safety frameworks (CE, RoHS).
HIGH POWER
1000W IP65 Heavy-Duty LiFePO4 Charger
- Input Voltage90–265V AC Universal
- Output Range14.6V – 58.4V Options
- Cooling MethodFin-Extrusion Convection
- ProtectionOVP, OCP, OTP, Reverse
CAN / RS485
1500W Wide-Input Buck-Boost DC Stabilizer
- Wide Input10–60V DC Regulated
- Preset Outputs12V / 24V / 28V / 48V
- Control BusRS485 Protocol Ready
- EfficiencyUp to 96.5% Peak
ISOLATED
18–90V to 12V 10A Isolated DC Converter
- Isolation1500V DC Galvanic
- Input Voltage18–90V DC Continuous
- Output Current10A Regulated Low Ripple
- EnclosureAnodized Potted Die-Cast
MARINE GRADE
400W Dual-Bank Battery-to-Battery Charger
- Charging TypeAlternator to LiFePO4
- DC Range10–36V Input Window
- ProfileMulti-Stage Microprocessor
- DesignEngine Bay Resistant
HEAVY FLEET
24V to 12V 100A High-Current Step-Down Buck
- Output Current100A Continuous (1200W)
- ConversionSynchronous Rectification
- ApplicationsHarbor Tugboats, Port Trucks
- HousingIntegrated Thermal Ribs
TRACTION PACK
72V to 24V 20A Traction Step-Down Module
- Input Voltage30–90V (48V/60V/72V Packs)
- Output24V Stable Rail (480W)
- UsageAGVs, Port Cranes, Forklifts
- Thermal Range-40°C to +85°C Ambient
NEW DESIGN
600W Submersible Waterproof LiFePO4 Charger
- Output Rating14.6V / 29.2V / 58.4V
- EnclosureComplete Epoxy Potting
- Smart CutoffZero-Voltage Auto Re-engage
- StandardISO 9001, CE Certified
Serving Tuzla’s Industrial & Maritime Power Ecosystem: An Engineering White Paper
The coastal district of Tuzla, Istanbul, stands as the indisputable epicenter of the Republic of Turkey’s shipbuilding, naval maintenance, and heavy logistical engineering. From the world-renowned Tuzla Shipyards along the Marmara coastline to the expansive specialized industrial zones inland, technical requirements for high-performance DC power conversion have evolved radically. Where legacy systems relied on bulky, low-efficiency linear step-downs or unshielded switch-mode modules, modern systems demand ruggedized, high-frequency, galvanic-isolated DC battery chargers and converters capable of operating under punishing thermal cycles, airborne salinity, and severe mechanical vibration.
Shenzhen Eltrum Electronic Co., Ltd. serves original equipment manufacturers (OEMs), dry-dock system retrofitters, and defense automation integrators operating directly within the Tuzla industrial basin. With a production footprint established in 2015 and verified on-site by international third-party inspection firms, Eltrum delivers field-proven power supplies encompassing non-isolated buck, boost, buck-boost topologies and advanced transformer-isolated architectures. Our production capabilities address the mission-critical needs of modern commercial shipbuilders, automated port vehicle contractors, and localized renewable power projects requiring robust direct-current power regulation.
Deployment Frameworks
Localized Application Scenarios across Tuzla's Sectors
Engineering topologies optimized to withstand high vibration, voltage transients, and galvanic corrosion.
Naval & Workboat Dual-Battery Systems
In Tuzla’s dry docks, shipwrights retrofitting tugboats, yachts, and commercial tankers deploy Eltrum DC-DC chargers to regulate volatile alternator feeds (12V/24V) into precision CC/CV charge curves for isolated LiFePO4 house banks, avoiding alternator diode burnout.
Heavy Port Logistics & AGV Cranes
Container terminals surrounding the Marmara Sea rely on Automated Guided Vehicles (AGVs) and heavy rail cranes operating on 48V, 72V, or 80V DC traction banks. Our step-down buck regulators convert these high buses into stabilized 12V or 24V telemetry, lighting, and sensor lines.
Telecommunications & Industrial Ground Isolation
Port telecommunication masts and offshore support nodes require complete earth-isolation to eliminate harmful ground loops. Our 1500V DC isolated converters take broad 18–90V battery swings and yield clean, ultra-low-noise DC outputs that safeguard sensitive radios.
Engineering Topology Selection Guide for Tuzla Procurement Directors
Specifying power conversion infrastructure requires rigorous matching of thermal, input swing, and isolation parameters. Deploying a standard non-isolated buck converter in high-side switched or floating maritime grounds can cause catastrophic earth fault trips. The table below outlines how Eltrum’s baseline topologies solve localized engineering challenges:
| Circuit Topology | Dynamic Input Window | Calibrated Outputs | Common Tuzla Use Cases | Key Operational Safeguards |
|---|---|---|---|---|
| Synchronous Buck | 24V, 48V, 72V, 80V Nominal | 12V, 13.8V, 24V (up to 100A) | Harbor tow vehicles, marine electronics | Short-circuit, overload auto-recovery |
| High-Current Boost | 10V – 30V Low-Bus | 24V, 28V, 48V Stable | Yacht auxiliary winches, 48V radar banks | Input undervoltage protection, active soft-start |
| Buck-Boost (Stabilizer) | 8V – 40V, 10V – 60V Continuous | 12V, 19V, 24V Regulated | Engine-cranking brownout elimination | Wide PWM range, integrated transient filter |
| Galvanically Isolated | 18V – 36V, 36V – 75V, 18V – 90V | 5V, 12V, 24V Fully Isolated | Navigational sensors, cathodic protection systems | 1500V DC breakdown barrier, noise decoupling |
Strategic Foresight
Industrial & Electrification Trends Shaping Tuzla
Meeting the EU Green Deal compliance standards and accelerating shipyard hybridization.
1. Decarbonization of Commercial Tugboats and Workcraft: In line with strict International Maritime Organization (IMO) carbon mandates and Turkey’s national green shipping targets, shipyards in Tuzla are pioneering fully electric and hybrid-diesel tugs. Traditional lead-acid chemistry is being rapidly decommissioned in favor of large-capacity Lithium Iron Phosphate (LiFePO4) arrays. These complex chemistries necessitate exact multi-stage CC/CV charging curves with microsecond over-voltage cutoff points to prevent cell thermal runaways.
2. Increased Telemetry Integration (CAN Bus & RS485): Unmonitored black-box converters are no longer sufficient for modern commercial fleets. Tuzla’s systems engineers increasingly mandate digital interfaces such as RS485 Modbus or CAN communication directly on chargers (exemplified by our WG-12C800M series). Real-time telemetry reporting charging current, internal thermal junction readings, and fault logs are fed directly into vessel management systems (VMS).
3. Extreme Environmental Demands: High-Salinity Encapsulation: Tuzla’s humid, saline coastal environment accelerates corrosion in power electronics. Eltrum has spearheaded vacuum-degassed epoxy potting within cast-aluminum IP67 housings, preventing salt fog ingress, electrolytic trace deterioration, and mechanical solder-joint fatigue caused by engine-room vibrations.
The Eltrum Manufacturing Advantage
Why International Engineering Teams Partner With Us
Direct from our Shenzhen ISO 9001 production hub to your facilities across the Mediterranean.
Agile Sample Prototyping (MOQ from 5 Units)
Unlike massive conglomerates that require orders of 10,000 units before speaking with an engineer, Eltrum provides standard product validation orders starting from just 5 pieces. This empowers Tuzla's design engineers to validate real-world electrical matches before capital-intensive production runs.
Comprehensive OEM / ODM Customization
Shenzhen Eltrum Electronic Co., Ltd. provides customized input ranges, proprietary CC/CV absorption levels, private-label casings, specialized heavy-gauge wiring looms, and custom-programmed RS485 communication protocols tailored to your proprietary industrial architecture.
Rigid Quality Assurance & ISO 9001 Auditing
Each converter and charger undergoes 100% full-load burn-in testing, insulation resistance validation, and thermal cycling before departing our Shenzhen facility. We back our supply chain with complete CE and RoHS test documentation for frictionless customs clearance into Turkey.
Procurement Clarity
Frequently Asked Questions by Tuzla Engineering & Sourcing Teams
Direct, transparent answers regarding compliance, lead times, and engineering specifications.
What is the typical lead time and MOQ for custom factory orders shipping to Tuzla?
Standard catalog sample orders start at just 5 units (with select high-power models available from 1–2 units) and typically dispatch via express air freight within 5–7 business days. Full container load (FCL) or consolidated sea-freight production runs for shipyard contracts typically average 20–25 business days from final technical sign-off, delivering to Ambarlı or Gebze ports.
How do Eltrum chargers protect LiFePO4 battery banks from marine alternator spikes?
Unlike simple split-charge relays that expose the lithium BMS to alternator load dumps, our battery-to-battery (DC-DC) chargers fully buffer and decouple the primary starter alternator from the house bank. The converter conditions incoming dirty voltage, provides soft-start current ramping, and delivers a clean CC/CV profile (such as 14.6V for 12V LiFePO4), entirely preventing alternator overheating.
Are Eltrum power products fully compliant with Turkish import certifications?
Yes. All Eltrum DC-DC converters and battery chargers are manufactured under an ISO 9001 certified quality management system and carry genuine European CE (EMC/LVD) and RoHS compliance certificates. Complete declaration of conformity documents, factory inspection records, and testing laboratory reports are provided for effortless import clearance with Turkish customs authorities.
Can we request custom charging curves or digital bus integration (RS485/CAN)?
Shenzhen Eltrum Electronic Co., Ltd. regularly builds custom voltage and firmware platforms. We can set custom absorption, float, and cutoff thresholds matching your exact lithium cell chemistry. Furthermore, our WG-12C800M and related platforms can be fitted with RS485 or CAN bus telemetry interfaces for automated PLC or shipboard data acquisition.
When should our engineers specify an isolated converter over a buck-boost?
Choose buck-boost when the primary requirement is maintaining a stable, unified common ground voltage rail (e.g., stabilizing a 12V bus during engine cranking). Opt for an isolated converter when you are handling different ground potentials, positive-ground communications, high-voltage traction batteries (48V/72V/90V) stepping down to user-accessible 12V systems, or when eliminating ground loops in sensitive naval sonar and navigation gear.
What payment terms and logistical delivery methods are supported?
We support flexible international commercial trade frameworks including T/T wire transfer and PayPal for rapid sampling, as well as Escrow terms in USD or EUR. Shipments can be arranged under EXW, FOB Shenzhen/Hong Kong, or CIF Istanbul/Gebze terms, with complete palletization and marine-grade protective export packaging.