A magnetic power bank sourcing brief should separate magnet fit, wireless certification, charging profiles, battery energy, wired ports, heat behavior and packaging claims. Do not approve a product from a magnetic hold test or a headline wattage alone. Freeze the exact sample, case/phone matrix, firmware, artwork and test conditions before production.
Specify Each Capability as a Separate Field
| Dimension | Specification field | Approval evidence |
|---|---|---|
| Magnetic fit | Target phones, cases, ring location and orientation | Exact device/case fit matrix |
| Wireless charging | Qi/Qi2 claim and maximum supported profile | Exact certification record and charging test |
| Battery | Rated mAh, nominal voltage and Wh | Label review and controlled output test |
| Wired ports | USB-C input/output profiles and sharing behavior | Protocol readout under defined loads |
| Mechanical design | Dimensions, weight, stand or built-in cable | Drawing and approved sample |
| Thermal behavior | Devices, case, ambient temperature and duration | Recorded session under repeatable conditions |
For consumer selection, use the wireless power bank guide. This page owns the OEM approval record rather than repeating a retail buying list.
Magnetic, MagSafe-Compatible and Qi2 Are Different Statements
A magnet describes attachment, not certification or speed. If packaging says Qi2 certified, verify the exact model in the Wireless Power Consortium database and keep the product identifier with the artwork file. A component invoice or similar-looking sample does not prove the finished retail SKU is certified.
The Qi2 vs MagSafe guide explains ecosystem and certification differences. Keep any wattage claim conditional on the exact phone, charger state, temperature and supported profile.
Test the Phone, Case and Position as One System
Build a matrix with the target phone model, OS version, case model, ring/coil alignment, starting battery level and ambient temperature. Record whether charging starts, remains attached during normal handling and completes the defined test without repeated disconnects. Include a no-case control so case interference is visible.
Magnet force alone is not the pass criterion. Excessive thickness, poor ring position or an obstructed camera area can make a strong attachment unusable.
Freeze a Repeatable Approval Sample
- Record the model, hardware/firmware revision and packaging revision.
- Photograph the sample and its regulatory/Wh labels.
- Capture supported wired profiles and the exact wireless certification record.
- Run the device/case matrix at declared conditions.
- Record surface-temperature method and charging behavior without inventing a universal limit.
- Approve the finished sample, specification and artwork together.
How Delivery Checks Reveal Configuration Changes
Delivery checks can compare model and batch identity, dimensions, weight, label content, magnet orientation, port function and a representative sample of charging sessions. Changes to cells, coil, magnets, controller, firmware or artwork should be reviewed under the agreed change process. Airline handling depends on the power bank’s Wh rating and carrier rules; it is not established by a magnetic charging logo.
Magnetic Power Bank Comparison Checklist
The approved sample can be compared with a named phone-and-case matrix instead of relying on a single open-air charging demo. Magnetic fit, charging behavior, battery and port performance, and approved product claims can be reviewed separately.
| Check | Test setup | What to document before ordering |
|---|---|---|
| Fit and interference | Named phones, cases, orientation and camera clearance | Attach/align result for every required combination |
| Charging behavior | Starting state, position, duration and ambient condition | Connection stability and declared profile under the defined test |
| Power-bank function | Wh/capacity declaration, wired ports and simultaneous use | Input/output behavior matches the approved specification |
| Thermal behavior | Measurement points, load and duration | Any derating or shutdown is recorded against the buyer limit |
| Claim control | Qi/Qi2 or compatibility wording, model identity and artwork | Only reviewed claims appear on the finished pack |
For an OEM magnetic power bank project, send the target phones/cases, capacity, wired-port requirements, market and intended certification wording through Keku’s RFQ contact.