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Shenzhen QuawinTEC Technology Co., Ltd. – A trusted manufacturer since 2006, specializing in battery chargers, Li-ion/LiFePO4 battery packs, PCM/BMS systems, and power supplies. Delivering high-quality, reliable energy solutions worldwide.
A leading manufacturer in battery technology with over 17 years of experience in R&D, production, and global distribution.
Shenzhen QuawinTEC Technology Co., Ltd. (formerly Shenzhen Keying Hengye Technology Co., Ltd.) has been a professional supplier of battery and charging solutions since 2006. We specialize in the research, development, manufacturing, and marketing of battery chargers, Li-ion and LiFePO4 battery packs, PCM/BMS systems, and power supplies.
Our products serve diverse industries across North America, South America, Europe, Asia, and beyond. With a strong focus on quality assurance, continuous improvement, and customer satisfaction, we have built a solid reputation for delivering high-performance, safe, and durable energy solutions.
High-quality battery chargers, packs, BMS, and power supplies engineered for performance and safety.
Efficient and compact charger for Li-ion and Li-Polymer batteries. Ideal for portable devices and industrial tools.
Precision protection circuit module for small Li-ion packs. Ensures cell balance and safety.
High-cycle life lithium iron phosphate packs for solar, medical, and industrial applications.
Advanced protection module for mid-series Li-ion packs. Designed for stability and precision.
Reliable switching power supply for industrial and commercial equipment.
High-power aluminum-housed charger for lead-acid and lithium batteries. Excellent heat dissipation.
Smart charger for nickel-based batteries with delta-V detection and auto cutoff.
Universal power adapter with multiple plug types for global use.
We deliver unmatched value through innovation, quality, and service.
ISO9001-certified processes and optimized manufacturing ensure competitive pricing without compromising quality.
Efficient supply chain and production planning ensure on-time delivery for OEM and bulk orders.
From chargers to battery packs and BMS, we offer integrated solutions under one roof.
Custom design and branding services available for private label and specialized applications.
17+
Years in Business
50+
Countries Served
10M+
Units Shipped
ISO
9001 Certified
Get answers to common questions about our products and services.
We produce chargers for Lead Acid, Li-ion/Li-Polymer, LiFePO4, and NiMH/NiCd batteries, ranging from 15W to 3600W in power output.
Yes, we welcome OEM and ODM projects. Our R&D team can customize chargers, battery packs, and BMS according to your specifications.
Our manufacturing process follows ISO9001 standards. Many of our products are CE, RoHS, and FCC compliant.
Sample orders are shipped within 3-5 business days. Mass production orders typically take 15-25 days depending on quantity and customization.
Yes, we offer sample units for evaluation. Contact us for sample availability and shipping details.
For inquiries, samples, or custom solutions, visit our official website to connect with our team.
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