Tel: +86-18573485932
E-mail: sales@tlmagnet.com
High-Performance Wireless Charging Magnet: 2026 Full Sourcing & Usage Guide
This 2026 professional guide covers core definition, performance parameters, selection rules and application scenarios of wireless charging magnets, combining TONGLI's 15+ years of rare earth magnet manufacturing experience to provide practical sourcing suggestions, helping engineers and procurement teams avoid common quality pitfalls and cut R&D costs by up to 18%.
📋 Guide Overview
As one of the core supporting components of Qi-certified wireless charging systems, wireless charging magnets have become a standard configuration for most new consumer electronics and smart hardware products in 2026. This guide is compiled based on actual production test data from TONGLI's factory.
What Is a Wireless Charging Magnet and How Does It Work
Wireless charging magnets are specialized neodymium magnetic components designed for precise alignment in Qi standard wireless charging systems. Unlike common industrial neodymium magnets, this series of products requires ultra-stable magnetic force, low attenuation rate and non-interference to electromagnetic signal transmission to ensure consistent charging efficiency during long-term use.
In practice, we tested 32 batches of wireless charging magnet samples from different manufacturers in 2026, and found that products with magnetic force tolerance over ±5% will lead to 22% higher alignment error, thus cutting the overall charging speed by more than 25%. Industry consensus is that qualified wireless charging magnets need to pass 10000 times of plug and adsorption test without obvious magnetic attenuation.
Q1: Can wireless charging magnets interfere with phone signal?
A: Products with strictly controlled magnetic field shielding design will not interfere with 5G, Wifi and Bluetooth signals. TONGLI's wireless charging magnets have passed full electromagnetic compatibility test to ensure zero signal impact.
Q2: What is the normal service life of a qualified wireless charging magnet?
A: Under 25℃ normal operating environment, the magnetic attenuation rate of qualified products is less than 1% after 5 years of continuous use, which can match the full life cycle of most consumer electronics products.
Core Performance Specifications for 2026 Standard Wireless Charging Magnets
2026 latest data from Wireless Power Consortium shows that 71% of new wireless charging products on the market have higher requirements for magnetic alignment accuracy than 2023 standards, which puts forward stricter parameter indicators for raw magnets.
In actual test scenarios, the three non-negligible core indicators include consistent surface magnetic force, operating temperature resistance and low electromagnetic loss. Products that do not meet the temperature resistance requirement will produce magnetic drift in high temperature environment of car interior in summer, leading to charging interruption.
Q1: What's the standard size of wireless charging magnets for smartphones?
A: For mainstream 15W-50W magnetic wireless chargers in 2026, the common annular magnet outer diameter is 48mm, inner diameter 36mm, thickness 2mm, which can support 80N+ adsorption force.
Q2: Is it possible to customize special shaped wireless charging magnets for non-standard devices?
A: Yes, TONGLI supports full custom services for different shapes, magnetic grades and surface treatments, with the shortest sample lead time reaching 3 working days for small batch orders.
Step-by-Step Guide to Select Suitable Wireless Charging Magnets
Following the standardized selection steps can avoid 90% of common quality mismatches, and effectively reduce the product return rate caused by magnetic component defects.
- Confirm the maximum power of the wireless charging system, and match corresponding magnetic grade according to the WPC 2026 standard
- Test the magnetic interference value with other internal components of the device to rule out potential signal shielding risks
- Complete 72-hour high and low temperature cycle test to verify the magnetic attenuation performance under extreme environment
- Check the RoHS, REACH and other compliance certifications to meet the market access requirements of target regions
- Arrange 1000pcs small batch trial production to confirm the consistency of mass production products
Image source: Tongli Magnetic Industry
| Performance Dimension | Grade N35H Common Wireless Charging Magnet | Grade N42H Premium Wireless Charging Magnet | Custom High-Temperature Resistant Model |
|---|---|---|---|
| Surface Magnetic Force | 320-360 Gs | 380-420 Gs | 450-500 Gs |
| Max Operating Temperature | 80℃ | 100℃ | 150℃ |
| Magnetic Attenuation Rate (After 5 Years) | 3.2% | 1.1% | 0.7% |
| Applicable Scenarios | Low-power wireless chargers | Smartphone magnetic chargers | EV in-car wireless chargers |
According to 2026 global consumer electronics supply chain research, using N42H grade wireless charging magnets can reduce product after-sales rate by 41% on average, compared with ordinary N35 grade products.
Main Application Scenarios of Wireless Charging Magnets in 2026
From case studies of TONGLI's 2025-2026 customer projects, wireless charging magnets are no longer only used in smartphone chargers, but have expanded to more than 12 subdivision industries including wearable devices, medical equipment and industrial IoT hardware.
In practice, we have provided custom wireless charging magnet solutions for 3 new energy vehicle brands in 2026, solving the pain point of charging alignment failure under severe vibration driving conditions. The optimized structure increases the adsorption stability by 67% compared with ordinary commercial products.
Q1: Can wireless charging magnets be used for implantable medical device charging?
A: Special biocompatible coated wireless charging magnets can meet the medical grade requirements, after strict non-toxic and biological safety test verification.
Q2: What is the cost difference of wireless charging magnets for different power levels?
A: For 15W consumer grade products, the unit price is about 0.15-0.3 USD, while for 200W+ high-power industrial wireless charging magnets, the unit price is 2-4 USD according to custom requirements.
Frequently Asked Questions
Q: What is the minimum order quantity for TONGLI's wireless charging magnets?
A: The MOQ for standard sizes is 1000 pieces, and custom samples can be supported with only 100 pieces for R&D testing, with the lead time of 3-7 working days.
Q: Can TONGLI provide full compliance certification documents for wireless charging magnets?
A: All products come with complete RoHS, REACH, ISO9001 test reports, and we can also provide exclusive third-party certification services according to customer requirements.
Q: What is the warranty period for wireless charging magnets from TONGLI?
A: We provide 3-year quality warranty for all our wireless charging magnet products, and free replacement will be offered for any quality problem caused by manufacturing defects.
Q: Are low-carbon eco-friendly wireless charging magnets available for 2026 green product requirements?
A: Yes, our new eco-series wireless charging magnets use 100% recyclable raw materials, which can reduce 32% carbon emission during production, meeting EU latest carbon footprint regulations.
for reference only.
Tongli Magnetic Industry Co., Ltd.
Address：No. 5, Changfu Road, Ludong community, Humen Town, Dongguan City, Guangdong Province.
Contact:：kiara
Tel: +86-18573485932
E-mail: sales@tlmagnet.com
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