OEM/ODM Battery Charger Suppliers & Exporter

High-Efficiency Industrial Power Supplies, Smart DC-DC Converters, and Custom Charging Solutions Engineered for Global Enterprise Applications

Enterprise Power Systems & Charger Modules

Explore our engineering-grade product portfolio optimized for industrial vehicles, marine equipment, telecommunications, and off-grid power storage.

WEMAXPOWER Telecom Power Inverter
WEMAXPOWER Telecom Power Inverter 12VDC to 120VAC 60HZ 0.5KVA 400W Pure Sine Wave Inverter
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High Efficiency Boost Converter
High Efficiency 12v to 56v 5a Dc to Dc Voltage Regulator 5amp 12vdc Step up 56vdc boost Converter
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WEMAXPOWER Lithium Battery Charger
WEMAXPOWER 12v 60a Lithium Battery Charger 300AH 500AH Lead Acid Lithium Ion Car Motorcycle Scooter Smart 14.6v 14.7v Chargers
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2.5KW DC to AC Smart Inverter
2.5KW DC to AC Smart Inverter 12V 24V 48V DC to 110V 120V 220V 230V 240V 50/60Hz Pure Sine Wave Power Inverter 2500W
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Waterproof Marine Lithium Charger
RVs, Exposed Cars, Campers, Boat Step up boost Lifepo4 Waterproof Marine 20A Lithium Batteries Charger Dc to Dc 12v to 36v
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Waterproof Buck Boost Converter
Waterproof 72W Step up Down 12/24v to 24vdc 3a Buck boost Converter 24v Dc Voltage Regulator
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Pure Sine Wave Power Inverter
DC to AC 12V 24V 48V to 220V 230V 240V 600W 1000W 1500W 2000W 3000W 4000W 5000W Pure Sine Wave Power Inverter
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Isolated DC/DC Converter
High Quality 12V/24V 12VDC 5A 36W Isolated DC/DC Converter 9-36V Input Voltage Regulator Single Phase IP68 Waterproof for Motor
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7+
Years Industry Expertise
4-Step
Rigorous QC Architecture
IP68
Ingress Protection Grade
99.4%
OEM First-Pass Reliability

Global Commercial & Industrial Battery Charger Landscape

Analyzing the Paradigm Shift Toward Electrification, High Energy Density, and Smart Grid Compatibility

The global energy transformation has drastically accelerated demand for advanced battery charging infrastructure across commercial fleets, industrial material handling, marine transportation, telecommunications, and off-grid renewable storage systems. Today's commercial ecosystem demands far more than basic voltage conversion; enterprise operations require intelligent charging algorithms, ultra-high conversion efficiency, robust thermal regulation, and seamless system integration.

As original equipment manufacturers (OEMs) and brand owners scale their product offerings worldwide, securing a qualified OEM/ODM partner capable of delivering standardized quality, localized regulatory compliance, and customized firmware profiles has become a strategic priority. Modern lithium-ion (LiFePO4, NMC) and advanced AGM/gel lead-acid chemistry requirements demand multi-stage charge profiles, precise voltage output regulation, dynamic temperature compensation, and active CAN bus communication interfaces.

Transition to LiFePO4 & Smart Lithium

Industrial machinery and recreational vehicles are rapidly abandoning traditional lead-acid batteries in favor of Lithium Iron Phosphate (LiFePO4). OEM chargers must execute strict CC/CV (Constant Current / Constant Voltage) algorithms with zero-voltage wake-up features for depleted battery management systems (BMS).

Environmental Ruggedization (IP67/IP68)

From marine vessels to exposed off-road utility vehicles and golf carts, charger modules face continuous exposure to water immersion, vibration, dust, and aggressive thermal cycling. Enterprise buyers now require fully encapsulated aluminum housing and potted electronics.

Distributed DC-to-DC Architecture

Modern mobile platforms rely on multi-voltage ecosystems (e.g., 48V traction drives operating alongside 12V auxiliary electronics and 56V telematics). Modern DC-to-DC converters and step-up boost regulators maintain system stability under fluctuating source voltages.

OEM/ODM Customization Framework & Design Capabilities

End-to-End Hardware Engineering, Custom Firmware Development, and Structural Adaptation

As a specialized OEM/ODM manufacturer, we eliminate the constraints of standard off-the-shelf power electronics. We partner directly with system integrators, fleet managers, and industrial equipment manufacturers to develop customized power supplies, chargers, and converters engineered around specific dimensional, electrical, and thermal parameters.

Engineering Dimension OEM Customization Options Technical Capability & Parameter Range
Voltage & Topology Step-Up (Boost), Step-Down (Buck), Buck-Boost, Isolated DC-DC Inputs from 9VDC to 500VDC; Outputs tailored from 3.3VDC to 500VDC high-power constant current.
Charge Curve Programming Custom Micro-controller Firmware (LiFePO4, AGM, GEL, Lithium-Ion) Multi-stage profiles: Constant Current (CC), Constant Voltage (CV), Floating Charge, Trickle Charge, Auto-wake up.
Enclosure & Ingress Extruded Aluminum, Die-Cast Enclosures, Fully Potted Silicone IP65, IP67, IP68 Waterproof ratings; custom thermal mounting flanges and heatsink geometry.
Communication Protocols Smart Interface Integration CAN-bus 2.0B, RS485, Modbus, Bluetooth telemetry monitoring, isolated analog signal feedback.
Electrical Protection Multi-Layer Integrated Safety Circuitry Over-Voltage (OVP), Over-Current (OCP), Over-Temperature (OTP), Reverse Polarity, Short Circuit Auto-Recovery.

Technical Deep Dive: Isolated vs. Non-Isolated Power Conversion

For sensitive marine and industrial telecommunications applications, line isolation prevents ground loops and eliminates noise transfer between high-voltage traction batteries and low-voltage control circuits. Our engineering team utilizes advanced transformer coupling and optoisolated feedback loops to deliver galvanic isolation up to 1500VDC while maintaining conversion efficiencies exceeding 93%.

Manufacturing Authority: Shenzhen Wemaxpower Technology Co., Ltd.

7+ Years of Dedicated Research, Development, and Precision Manufacturing Excellence

Shenzhen Wemaxpower Technology Co., Ltd. is a specialized manufacturer with over 7 years of deep operational experience in designing, testing, and manufacturing industrial programmable DC power supplies, DC-DC converters, isolated regulators, smart battery chargers, and power conversion modules. Serving enterprise partners across North America, Europe, Southeast Asia, and Australia, we deliver robust solutions engineered for high uptime and absolute reliability.

Our factory operations maintain an unyielding commitment to quality guarantee. Every product delivered to our global OEM partners undergoes a rigorous 4-Step Quality Control Process to guarantee zero-defect field performance:

  • Step 1: Raw Material Testing (IQC) – Comprehensive verification of incoming components, MOSFETs, transformers, and ICs against strict electrical and thermal specifications.
  • Step 2: Semi-Finished Product Testing (IPQC) – In-line automated optical inspection (AOI) and circuit parameter testing post surface-mount assembly (SMT).
  • Step 3: Finished Product Functional Verification (FQC) – 100% full-parameter dynamic load testing, ripple voltage evaluation, and enclosure sealing verification.
  • Step 4: Extended Aging & Burn-in Test (QA) – Full-load operational stress testing inside elevated-temperature chambers to eliminate infant mortality failures before shipment.
The factory team will deliver you quality-guaranteed orders.

Technical Topology Analysis & Conversion Architecture

Deep-Dive Engineering into High-Density Switching, Inverters, and Buck-Boost Regulators

DC-DC Boost Converters

Designed for stepping up lower battery voltages (such as 12VDC) to higher voltage thresholds (such as 36V, 48V, or 56VDC). Utilizing high-frequency PWM switching, these units achieve up to 96% efficiency for driving high-voltage telematics and equipment.

Buck-Boost Regulators

Crucial for system environments where the input DC voltage fluctuates both above and below the target output level. These dynamic regulators maintain rock-solid output stability (e.g., 24VDC constant output from an 18-40V variable input line).

Pure Sine Wave Inverters

Converting clean DC battery energy to standard utility AC power (110V/120V/220V/230V/240V). Our telecom-grade pure sine wave inverters feature Total Harmonic Distortion (THD) under 3%, safely powering sensitive electronics, communication equipment, and motors.

High-Power Programmable Supplies

High-voltage, variable constant-current power systems scalable up to 18KW and beyond. Operating with variable outputs up to 500V, these units serve as backbone equipment for lab testing, industrial plating, battery formation, and burn-in stations.

Global Regulatory Compliance & Localization Architecture

Ensuring Frictionless Export Across European, North American, and Asian-Pacific Commercial Markets

Exporting industrial power supplies and chargers requires comprehensive alignment with regional electrical safety standards, electromagnetic compatibility (EMC) codes, and environmental regulations. Shenzhen Wemaxpower Technology Co., Ltd. builds international compliance directly into the product development lifecycle.

North America (UL / FCC)

Engineered to satisfy UL 1564 (Industrial Battery Chargers) and UL 62368-1 standards. Electromagnetic emissions comply with FCC Part 15 Class A/B limits, guaranteeing interference-free operation alongside enterprise wireless infrastructure.

European Union (CE / RoHS)

Full compliance with the Low Voltage Directive (LVD 2014/35/EU) and Electromagnetic Compatibility Directive (EMC 2014/30/EU). RoHS 3.0 and REACH compliant materials guarantee environmental safety and ease of European customs entry.

Localized Thermal & Voltage Support

Units are engineered to withstand wide thermal operational windows (-30°C to +65°C) and variable international AC grid inputs (90V-264V AC, 50/60Hz) or wide range DC inputs for extreme environmental conditions.

Industrial Application Scenarios & Engineering Case Use

Proven Performance Across Demanding Field Operations Worldwide

Golf Carts & Utility EVs

36V and 48V auxiliary systems requiring IP67 waterproof buck converters (e.g., 36V/48V down to 12V 30A) to power vehicle lights, sound systems, air conditioning, and GPS tracking components without draining individual battery cells unevenly.

Marine & Nautical Vessels

Fully sealed IP68 smart chargers (12V 40A, 12V to 36V step-up boost chargers) designed to endure saltwater spray, heavy humidity, and high vibrational forces while keeping LiFePO4 house banks properly conditioned.

Telecom Base Stations

Pure sine wave telecom inverters converting negative ground 12V/24V/48V DC bus power into continuous 120V/230V AC utility lines to keep critical telecommunication transceivers online during primary grid outages.

Industrial Test & Automation

High-power adjustable constant-current DC power supplies (up to 18KW, 500V) used by battery manufacturers for life-cycle aging tests, automated factory lines, and burn-in screening racks.

Technology Roadmap: Next-Generation Power Conversion

Pioneering Silicon Carbide (SiC), Gallium Nitride (GaN), and IoT-Connected Telemetry

The power electronics industry is experiencing a massive technological shift. To keep our OEM partners ahead of global market competition, Shenzhen Wemaxpower Technology Co., Ltd. actively invests in advanced R&D initiatives:

GaN & SiC Semiconductor Integration

Transitioning switching topologies from traditional Silicon MOSFETs to Wide Bandgap (WBG) Silicon Carbide (SiC) and Gallium Nitride (GaN) devices. This cuts thermal switching losses by 40%, increases power density by 35%, and allows even smaller physical form factors.

Bi-Directional Charging Systems (V2G / V2X)

Engineering future-proof power conversion modules capable of bidirectional energy flow—enabling mobile electric fleets to discharge surplus energy back into industrial microgrids during peak demand hours.

Cloud & IoT Diagnostics

Integrating wireless IoT chipsets (BLE, Wi-Fi, Cellular) directly into charger microcontrollers to provide fleet operators real-time health diagnostics, SOC tracking, predictive maintenance alerts, and over-the-air (OTA) firmware updates.

Frequently Asked Questions (OEM/ODM Procurement FAQ)

Key Technical and Business Considerations for Enterprise Buyers

What is the minimum order quantity (MOQ) for OEM custom charger modifications?

For standard custom modifications (such as special output voltage tuning, customized charging profile curves, or specific connectors), our typical MOQ starts as low as 50 to 100 units depending on the model. Fully custom enclosure tooling or ground-up PCB design projects are evaluated case-by-case to optimize NRE cost efficiency for our clients.

How do your smart chargers handle depleted lithium batteries with an open BMS?

Our smart LiFePO4 and lithium-ion chargers feature an automatic zero-voltage/low-voltage activation function. When a lithium battery's internal BMS trips into low-voltage disconnect protection, our charger supplies a controlled pulse voltage to reset the BMS safety circuit before commencing the full Constant Current (CC) charging stage.

What IP ratings are available for harsh industrial or marine installations?

We supply products ranging from IP20 for indoor telecommunication rack systems up to IP67 and IP68 fully sealed potted aluminum units. Our IP68 units are completely protected against total dust ingress and sustained continuous immersion under water pressure.

What warranty and technical support structure is provided with export shipments?

All products manufactured by Shenzhen Wemaxpower Technology Co., Ltd. come standard with a 12 to 36-month factory warranty (extendable upon request). We provide comprehensive technical engineering support, full schematic documentation for system integration, and rapid replacement unit dispatches for field service operations.

Industrial Converters & Voltage Regulator Products

High-Performance Step-Down, Step-Up, and Variable DC Power Supply Systems

Waterproof Boat Battery Charger
Waterproof Ship Boat Use 12vdc 14.6v 14.7v 12.6v 16.8v Intelligent Smart 12v 40 Amp Battery Charger
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18KW High Power Adjustable DC Supply
160V180V200V250V300V360V400V500V 18KW High Power Constant Current Adjustable DC Power Supply, Variable Voltage Dc Power Supply
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Car Truck DC DC Chargers Step Up
Hot Car Truck RVs EV Boat Dc Dc Chargers Step up Converter 12v to 14.6v 10a 20a 25a 30a 40a 50a Dc Charger
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AC DC Converter 36VAC to 12VDC
17-38vac Input Range 36vac to 12vdc Ac-dc Converters Monitor Module 2A 36v to 12v Ac to Dc Converter
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Waterproof IP67 DC Step-Down
Waterproof IP67 20A 240W DC Step-Down 60V to 12V Converter Single Output for Automotive Motor Home Applications
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Golf Cart Buck Module Converter
Car Golf Cart Buck Module 30A 36V/48V to 12V Step-Down DC/DC Converter for Home Air Conditioner & Motor Use IP67 Waterproof 360W
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Waterproof Step Up Down Voltage Regulator
Waterproof 18-40V Input 24V 36V Step up Down 24vdc 50a Converter Dc24v 36Vdc to 24V 50amp Dc Dc Voltage Regulator
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Buck Boost Isolated DC Regulator
Buck boost Isolation Dc Regulator 3a 72w Voltage Step up Down 12v 24vdc to 24v Isolated Converter
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