Smart 36V Lithium Battery Charger DC 12V to 43.8V 13A
- Input Voltage12V DC (Alternator/Battery)
- Output CC/CV43.8V (36V LiFePO4 Pack)
- Rated Output Current13A Continuous
- Thermal Threshold-40°C to +85°C Operating
500+
Standard Power Architectures
130+
Global Export Markets
96.8%
Peak Conversion Efficiency
ISO9001
Certified Quality Facilities
High-Efficiency DC Converters & Chargers for US OEM Integrators
Engineered to mitigate harsh North American climate extremes, transient surge conditions, and battery chemistry shifts with ruggedized IP65/IP68 encapsulation.
1500W Dynamic Buck-Boost Stabilizer 10–60V
- TopologySynchronous 4-Switch Buck-Boost
- Output Regulation12V / 24V / 28V / 48V Stable
- Telemetry InterfacingRS485 Modbus Compatible
- EnclosureHeatsink Extrusion + Potting
24V to 12V 100A Commercial Truck Step-Down
- Continuous Power1200W Low-Ripple Rail
- Standard ComplianceSAE J1455 Heavy Vehicle
- Efficiency Rating96.4% Synchronous Rectification
- ProtectionOCP, OVP, Reverse Polarity
18–90V Ultra-Wide Input Isolated Converter 12V 10A
- Isolation Rating1500VDC Galvanic Barrier
- Target SystemsClass 1/2 Industrial Forklifts
- Ground ProtectionEliminates Ground Loops / Hum
- Sealing ClassFull Vacuum Epoxied IP68
300W Marine LiFePO4 AC-DC Waterproof Charger
- Mains Input Range90–264VAC Universal Plug
- Chemistry Target14.6V / 29.2V Lithium Phosphate
- Corrosion ShieldSalt-Spray Resistant Anodizing
- BMS InterlockingZero-Voltage Wake-Up Feature
12V to 48V High-Current Step-Up Boost Module
- Boost Capacity48V at 12.5A to 20A Continual
- Cooling MethodIntegrated Thermal Rib Die-Cast
- Transient WithstandLoad Dump Clamping Diodes
- Application DomainGolf Carts, Robotic Drives, PV
400W Smart Alternator-to-Battery RV Charger
- Smart Alternator LinkIgnition S-Terminal Detection
- Charge AlgorithmsBulk, Absorption, Float (3-Stage)
- Reverse DrainingZero Back-Leakage Solid-State
- Form FactorUnder-Hood Sealed Housing
30–60V (48V Bus) to 12V 60A Step-Down Module
- Nominal Delivery720W Low-Profile Rail
- EMI AttenuationFCC Part 15 Class B Compliant
- Input SurgesTolerant to 75V DC Peak Rail
- CustomizationMolex/Deutsch Connectors Ready
Technical Whitepaper Insight
Bridging Chinese Manufacturing Scale with US Engineering Standards
US electrical architectures present distinct electrical stressors: harsh cold-cranking voltage dips down to 6.5V across the Midwest, prolonged high ambient heat up to 60°C in Southwest utility plants, and rigorous compliance checks under SAE J1113-11 (automotive power surges) and UL 121201 (hazardous locations).
Shenzhen Eltrum Electronic Co., Ltd. bridges this cross-continental compliance gap. Operating since 2015 with over 3,000 m² of specialized production space, our engineering team replaces brittle consumer-tier buck converters with industrial-grade planar magnetics, Japanese Nippon Chemi-Con capacitors rated for 105°C, and fully isolated DC-DC bridges that mitigate circulating loop hum and ground faults.
- Wide-Range Automotive Headroom: Fully regulated buck-boost topologies capable of surviving continuous load-dump events up to 100V without output voltage spikes.
- Galvanic Ground Decoupling: High-potential isolated converters protecting delicate CAN-bus, telemetry, and GPS nodes in modern electric chassis.
- Thermal Optimization via Resin Potting: 100% silicone/polyurethane potting ensuring zero void air space, superior heat conduction, and vibration resilience up to 8G.
Localized Application Scenarios Across North America
From Tier-1 telecommunication shelters in Texas to commercial EV utility fleets and marine systems in Florida, our power modules deliver mission-critical conversion.
Class 6–8 Fleet Telematics & 12V Auxiliary
Heavy semi-trucks operating on 24V architecture require ultra-clean 12V rails for electronic logging devices (ELDs), dashcams, and radar collision mitigation. Our 24V to 12V 85A/100A synchronous buck modules prevent voltage droop under severe battery cranking loads.
Commercial Off-Grid & 48V Telecom Shelters
Distributed cell towers rely on 48V VRLA or LiFePO4 battery banks. Eltrum's galvanically isolated 36–75V to 12V/24V converters provide 1500V dielectric isolation, fully preventing ground loops that distort sensitive SCADA transceivers.
Overland RVs & Marine Dual-Battery Integration
Standard smart alternators fail to fully charge high-capacity secondary LiFePO4 house banks. Our 12V and 36V smart DC-DC chargers inject multi-stage CC/CV curves without stressing the alternator or tripping sensitive on-pack BMS switches.
Key DC Power Trends Transforming the United States Market
Strategic supply-chain positioning requires adapting to shifting battery chemistries, digital control loops, and higher industrial voltages.
Widespread Adoption of 48V Architecture
From automotive mild hybrids to data server racks and robotic automated guided vehicles (AGVs), the transition from 12V to 48V drastically slashes harness weight and I²R resistive losses, elevating demand for high-efficiency 48V to 12V and 48V to 24V step-down converters.
Rapid Dominance of LiFePO4 Chemistry
Legacy lead-acid battery chargers with fixed float voltages cause rapid degradation or failure in lithium batteries. Engineering buyers now mandate programmable or multi-stage CC/CV converters with precise 14.6V, 29.2V, or 43.8V cutoff levels to maximize cell longevity.
Supply Chain Resilience & Custom Sourcing
With domestic lead times often stretching past 26 weeks, American engineering teams are actively establishing direct OEM ties with audited Shenzhen production hubs capable of delivering validated custom units at minimum order quantities as low as 5 units.
Frequently Asked Questions by US Engineering & Sourcing Teams
Clear answers regarding compliance, tariffs, custom voltage matching, and wholesale logistics.
How do your converters address US vehicle smart alternator charging profiles?
Modern US vehicles equipped with Euro 6 / EPA-compliant smart alternators frequently drop system voltage below 12.5V during deceleration phases to save fuel. Our battery-to-battery (DC-DC) chargers feature dedicated ignition-trigger sensing and wide-input buck-boost stages that boost intermittent voltages back up to the exact 14.6V or 29.2V profile needed for full lithium replenishment.
Are Eltrum DC-DC converters compliant with US FCC EMI/EMC standards?
Yes. Our converter and charger modules are designed with integrated multi-stage LC filters, ferrite common-mode chokes, and aluminum shielding to comply with FCC Part 15 Class B radiation standards, ensuring zero interference with high-frequency telemetry, marine VHF, or GPS hardware.
When is an isolated DC converter mandatory over a non-isolated version?
Isolation is strictly required when the negative return ground of the input system must remain electrically separate from the load ground—such as in 48V positive-ground telecom shelters, industrial electric forklifts with chassis ground risk, or marine aluminum hulls prone to galvanic corrosion. Non-isolated buck/boost modules can be used when a shared negative ground is acceptable.
What are the MOQ terms and typical air/ocean lead times for North America?
Standard catalog units feature a sample MOQ starting from just 5 units to allow rapid bench prototyping. Standard production runs take 15–20 days. Shipments to US facilities are regularly dispatched via expedited air (FedEx/DHL/UPS, 4–7 business days door-to-door) or ocean DDP/FOB terms to West Coast ports (Long Beach/Oakland, 16–22 days transit).
Can Shenzhen Eltrum customize charging curves, wiring harnesses, or enclosures?
Yes. Our engineering division provides complete OEM and ODM design services. We customize input and output voltage ranges, integrate RS485/CAN communication protocols, install pre-terminated automotive-grade connectors (such as Deutsch DT, Anderson Powerpole, or Molex), and apply private buyer-label silk-screening.
What certifications and quality management documentation can be provided?
All products are manufactured under an ISO 9001 certified quality management infrastructure in Shenzhen. We provide CE and RoHS conformity documents, comprehensive bench test reports, IP68 water submersion test certificates, and full bill-of-materials declarations required by US customs brokers.