ISO 9001 Certified · SGS Assessed Factory Direct

OEM/ODM Battery Charger Module Exporter & Exporters in London

Precision Power Conversion Subsystems, Intelligent Constant Current/Constant Voltage (CC/CV) Topologies & Engineered SMPS Modules Tailored for London’s Fleet Electrification, Micro-Mobility, BESS, and Mission-Critical Telecom Hubs.

Industrial Switch-Mode Lineup

High-Reliability OEM Battery Charger Modules & SMPS Subsystems

Engineered for high-duty continuous operation, rigorous thermal endurance, and compliance with British and European standards. Select from our catalog configurations below or request custom voltage/current profiles.

19+
Years Engineering (Since 2007)
10,000m²
SGS On-Site Assessed Plant
10+ Lines
High-Speed Automated SMT & DIP
100%
Full-Load Thermal Burn-In Test
Technical Whitepaper & Architecture

High-Efficiency Battery Charger Topologies: Engineering Guide for UK Systems Integrators

A rigorous engineering appraisal of CC/CV transition mechanics, power factor correction (PFC), thermal dissipation architectures, and EMI suppression strategies for Greater London applications.

Intelligent Multi-Stage Charging (CC/CV/Float)

Unlike standard CV constant-voltage power supplies, our OEM battery charger modules feature precise analog and digital current-limiting feedback loops. The sub-assembly operates seamlessly in constant current mode under dead-pack voltage draw, avoiding inrush tripping, transitioning smoothly to constant voltage saturation, and trickling to a thermal-neutral float maintenance state for lithium-ion (NMC/LFP) and sealed lead-acid (VRLA/AGM) arrays.

Active PFC & Grid Compliance (BS EN 61000-3-2)

The UK National Grid and London distribution network operators (UK Power Networks) mandate tight harmonic pollution control. Our high-power switching modules incorporate continuous conduction mode (CCM) active power factor correction, elevating the power factor up to 0.98. This mitigates phase distortions, minimises neutral wire overheating in multi-tenant commercial charging cabinets, and guarantees compliance with Class C and Class D limits.

Comprehensive Protection & Derating Reserve

Every industrial module is engineered with redundant silicon protection: over-voltage protection (OVP via hardware crowbar/zener sensing), auto-recovery over-current protection (OCP), short-circuit hiccup/latch modes, and multi-point NTC-driven over-temperature protection (OTP). Premium 105°C-rated imported electrolytic capacitors provide long MTBF figures exceeding 50,000 continuous hours at 40°C ambient.

Series & Architecture Nominal Output (V / A) Battery Chemistries Supported Efficiency & PFC Enclosure / Cooling Standard Certifications
S-15 Series (15W Sub-board) 5V/3A, 12V/1.3A, 15V/1A Logic Rail, Li-Ion BMS Standby, Trickle >82%, Passive Filter Perforated Metal, Free-Air Convection CE, RoHS, FCC Part 15 Class B
S-145 Series (145W Compact) 12V/12A, 24V/6A, 36V/4A AGM / GEL / 3S–8S LiFePO4 >85%, Built-in Filter Extruded Aluminum, Convection CE, RoHS, BS EN 55032
S-200 Series (200W Workhorse) 15V/13.3A, 24V/8.5A, 36V/5.56A, 48V/4.17A 12V/24V/36V/48V Lead-Acid, 4S–16S LFP >86%, High Thermal Margin Perforated Chassis with Heat Sinks CE, RoHS, EN 62368-1, UKCA Path
S-1200 Series (1.2kW Heavy Duty) 12V/100A, 24V/50A, 36V/33A, 48V/25A High-Capacity BESS, Light EV Fleet, Marine >88%, Thermally Controlled Fan Forced Air Dual Ball-Bearing Fan CE, RoHS, EN 60335-2-29, EMC Class A
Localised Deployment

Critical Applications Across Greater London & the Thames Estuary Corridor

From central London’s Ultra Low Emission Zone (ULEZ) last-mile logistics to high-density subterranean infrastructure, our power conversion modules deliver reliable DC power where failure is not an option.

ULEZ Electric Cargo Bikes & Last-Mile Micro-Mobility

With London’s expanding ULEZ regulations pushing commercial couriers (DPD, Royal Mail, Amazon lockers, and independent courier hubs in Shoreditch and Bermondsey) toward electric cargo bikes and light e-quads, our 36V and 48V OEM charger sub-assemblies (S-200-36, S-200-48) are integrated into high-throughput overnight battery swapping cabinets and depot fast-chargers, maintaining optimal thermal equilibrium inside cramped commercial hubs.

Docklands & Slough Data Centre UPS Subsystems

The UK’s financial and tech servers located in the Isle of Dogs and the Slough trading estate rely on multi-tier DC battery backup arrays. Our auxiliary 15W to 200W switching power supplies deliver stable logic voltages (5V, 12V, 24V) to intelligent Battery Management System (BMS) controllers, telemetry transceivers, and environmental sensory networks with zero dropout during mains failover transitions.

Off-Grid Hybrid Renewables & Thames Marine Logistics

From auxiliary house banks on Thames commercial tugs and houseboats to eco-conscious construction site lighting trailers along the HS2 corridor, our 12V and 24V power units charge lead-carbon and LFP banks from variable generator outputs and solar micro-inverters, sustaining shock and vibration under demanding British operating conditions.

Market Intelligence & Compliance

The UK Energy Transition: Regulatory Compliance for London Exporters & Integrators

Navigating the post-Brexit regulatory ecosystem, including UKCA conformity, BS EN safety mandates, and localized grid connection directives.

1. Mandatory UKCA & CE Dual Certification Frameworks

Following the UK’s departure from the European Union, electrical equipment placed on the British market must meet the Electrical Equipment (Safety) Regulations 2016 and Electromagnetic Compatibility Regulations 2016. As a global exporter, we supply equipment that satisfies both UKCA (UK Conformity Assessed) and CE mark documentation requirements.

Our battery charger modules are engineered against BS EN 60335-2-29 (particular requirements for battery chargers) and BS EN 62368-1 (audio/video, information and communication technology equipment safety), ensuring full compliance when imported through the Port of London, Tilbury, or London Gateway.

2. Greater London Authority (GLA) Clean Air Strategy & Fleet Electrification (2025–2030)

The Mayor of London’s decarbonisation targets demand zero-tailpipe-emission fleets across all central London boroughs by 2030. This has led to rapid growth in localized Battery Energy Storage Systems (BESS) and autonomous guided vehicle (AGV) deployments in outer London industrial parks (Park Royal, Dagenham, Croydon, and Enfield).

Our OEM/ODM manufacturing facility supports London equipment builders with tailor-made power supply modules featuring wide AC input ranges (85VAC to 264VAC universal input), conformal PCB coating for protection against condensation in unheated dock enclosures, and robust transient protection to handle urban grid surges.

Manufacturing Excellence

Why UK Buyers Partner With Zhejiang Harlon Electronic Co., Ltd.

Combining 19 years of dedicated power electronics R&D with an audited, vertically integrated 10,000m² manufacturing facility verified on-site by SGS Group.

10+ Automated SMT & Assembly Lines

Our facility houses high-speed surface-mount placement machines, automatic component insertion stations, wave soldering chambers, and dual-liquid glue potting systems. We maintain full traceability from incoming component verification across 31 cooperated component suppliers down to individual PCB barcoding.

100% Thermal & High-Voltage Burn-In

Every module manufactured on our floor undergoes loaded aging inside dedicated high-and-low temperature environmental stress chambers, followed by dielectric insulation withstand testing (Hi-Pot up to 3.0kVAC), lightning surge immunity simulation, earth continuity testing, and oscilloscope ripple-noise characterization before packaging.

Flexible OEM/ODM Customization for London Brands

Whether you need custom CC/CV voltage thresholds for lithium iron phosphate chemistry, private-label branding, customized chassis mount brackets, terminal block reorientations, or bespoke potting compounds for damp London environments, our engineering design team provides sample prototypes within 7 to 14 business days.

Frequently Asked Questions

UK & London Battery Charger Module Procurement FAQ

Detailed technical, compliance, and logistics answers for engineering leads and procurement officers.

Can your switching power supplies be deployed directly as battery chargers?
Yes, subject to topology configuration. Standard CV (constant voltage) switching power supplies will trigger over-current shutdown or enter hiccup mode when connected to a depleted battery due to high initial inrush current. Our battery charging modules (such as configured S-200 and S-1200 series) are engineered with integrated constant-current (CC) limiting circuits, enabling them to operate safely across the full battery discharge curve until the terminal threshold is reached, transitioning safely into voltage float.
How do you handle shipping, customs clearance, and UK Import Duty into London?
We offer comprehensive International Commercial Terms (Incoterms 2020) including FOB Ningbo/Shanghai, CIF Port of London / Southampton / London Gateway, and DDP (Delivered Duty Paid) via express air courier or consolidated sea freight. Under DDP arrangements, our UK logistics partners handle customs processing, commodity code declaration (HS Code 8504.40), and import VAT remittance directly to HMRC, eliminating clearance delays for London buyers.
What certifications and declarations of conformity are provided for UKCA compliance?
We supply complete technical construction files (TCF), test reports issued in accordance with BS EN 62368-1 (Low Voltage Directive equivalent) and BS EN 55032 / BS EN 61000-3-2 (Electromagnetic Compatibility), and official Manufacturer Declarations of Conformity (DoC) carrying both CE and UKCA designations. Factory inspection certificates and full material composition declarations under UK RoHS and REACH are also provided.
What are the minimum order quantities (MOQ) and production lead times for OEM/ODM orders?
For standard catalog chassis power supplies and battery charger modules, our MOQ starts from as low as 50 to 100 units to support initial prototyping and pilot production runs for UK technology startups. For bespoke OEM/ODM projects (custom PCB layouts, specific voltage/current envelopes, or branded silkscreening), typical MOQs range from 500 units. Standard production lead time is 15 to 25 calendar days, supported by buffer stocking for repeat corporate contracts.
How do your modules perform under high ambient temperature conditions inside sealed cabinets?
Thermal reliability is governed by our component selection policy: we employ Japanese and premium Taiwanese 105°C-rated long-life electrolytic capacitors and oversized aluminum heatsinks. Our modules maintain 100% rated output load up to +50°C ambient without thermal throttling. In sealed IP65/IP67 enclosures typical of London outdoor infrastructure, we provide clear derating curves (typically 2.5% power reduction per °C between 50°C and 70°C) or engineer custom conduction-cooled baseplates for direct chassis heat sinking.

Ready to Power Your Next System? Connect with Our Senior Power Engineers Today

Whether you require standard 10W to 3000W AC/DC switching power supplies or a fully custom multi-stage battery charger module engineered to UKCA/BS standards, our engineering team in Zhejiang and export specialists are standing by to support your London deployment.

Contact Us