AJ39 Aluminum Magnetic Wireless Power Bank 5000mAh | OEM

Description

AJ39 is a slim 5000mAh magnetic wireless power bank platform with an aluminum-alloy housing, Type-C input and output, magnetic alignment surface, compact digital readout, and a cable-loop design shown in product artwork. The published specification lists wireless output modes of 5W, 7.5W, 10W, and 15W plus Type-C output profiles up to 12V/1.67A with a stated 20W maximum. Protocol support, magnetic holding force, device and case compatibility, cable or accessory inclusion, thermal behavior, and final material details require confirmation on the approved production specification and sample.

AJ39 Aluminum Magnetic Wireless Power Bank at a Glance

• Published capacity: 5000mAh at 4.35V.
• Wireless modes: 5W, 7.5W, 10W, and 15W.
• Type-C output: 5V/3A, 9V/2.22A, and 12V/1.67A with a stated 20W maximum.
• Physical design: 104.7 × 67.7 × 10.1mm, 103g, aluminum-alloy housing, magnetic surface, and digital readout.
• Artwork details: multiple metal finishes plus a cable loop and travel-set presentation; standard contents require written confirmation.
• OEM order tiers: 500, 1000, and 2000 pieces, subject to the approved quotation and project scope.

Published Technical Specifications

These are published model figures, not a substitute for the buyer-approved datasheet or protocol evidence. Confirm cell configuration, rated energy, usable output, charging profiles, wireless implementation, material grade, test conditions, and final labels before quotation, mass production, or compliance use.

Magnetic Wireless Charging Verification

The published wireless modes reach 15W, but this does not prove a fixed rate for every device, a specific protocol certification, universal magnetic compatibility, coil alignment, case compatibility, or performance under simultaneous loads. Buyers should request the wireless controller specification, supported profile matrix, magnet and coil drawings, pull-force and alignment tests, case-thickness limits, foreign-object and abnormal-operation protection data, temperature-rise results, and tests using the exact target phones and cases.

Type-C 20W Profile and Protocol Checks

The listed Type-C output profiles reach 12V/1.67A with a stated 20W maximum, while input is listed at 5V/2A and 9V/2A. These voltage/current profiles do not by themselves confirm a named protocol, fixed recharge time, device-specific speed, cable performance, or simultaneous wired and wireless behavior. Request controller data, protocol analyzer logs, source and sink matrices, charger/device tests, voltage stability, protection thresholds, and thermal results.

Aluminum Housing, Thermal Design, and Finish Approval

The published housing material is aluminum alloy, with 10.1mm thickness and 103g weight. Buyers should confirm the alloy grade, internal electrical insulation, anodizing or coating process, color standard, adhesion, abrasion and scratch tests, dimensional tolerances, and surface-finish sample. Because metal, battery, coil, PCBA, firmware, and ambient conditions all affect temperature, request wired and wireless temperature-rise tests for the final production configuration.

Digital Readout, Cable Loop, and Package Contents

Product artwork shows a compact power readout, cable loop, several finishes, and a travel-set presentation with cable, packaging, and an adapter in the scene. Buyers should confirm what the display shows, value accuracy, firmware behavior, cable connector and rating, whether the cable is attached or removable, cable durability, adapter specification, and which accessories are actually included in the quoted standard package. Artwork should not be treated as the final packing list.

OEM and ODM Quantity Tiers

• 500 pieces: standard OEM logo and packaging on the existing AJ39 platform.
• 1000 pieces: project review for approved housing finish, color, documentation, cable or accessory presentation, or packaging changes.
• 2000 pieces: deeper ODM review involving the cell, PCBA, firmware, magnetic system, coil layout, display, thermal design, cable system, or structure.

Final MOQ, scope, samples, finish feasibility, tooling, pricing, lead time, compatibility, labeling, certification, warranty, package contents, and inspection criteria must be confirmed in the quotation and approved production specification.

B2B Buyer Verification Checklist

• Confirm cell specification, nominal voltage and watt-hours, usable-energy method, conversion efficiency, transport records, and lot-level capacity controls.
• Request wireless profile, magnet, coil, alignment, pull-force, case, temperature, and protection test evidence.
• Verify Type-C profiles and any protocol claims with controller data, analyzer logs, charger/device tests, and shared-output rules.
• Approve alloy grade, insulation, finish, color, scratch resistance, dimensions, weight, display behavior, and thermal performance.
• Define cable and adapter inclusion, connector specifications, logo, packaging, labels, manuals, compliance scope, warranty, and inspection criteria in writing.

AJ39 Product Images

Frequently Asked Questions: AJ39 Aluminum Magnetic Wireless Power Bank

1. What specifications are confirmed for the AJ39?

The published AJ39 specification lists a 5000mAh battery, a 104.7 × 67.7 × 10.1mm body, 103g weight, and an aluminum-alloy housing. Type-C input is listed at 5V/2A and 9V/2A. Type-C output supports 5V/3A, 9V/2.22A, and 12V/1.67A, with a stated maximum of 20W. Wireless output modes are listed as 5W, 7.5W, 10W, and 15W. Final tolerances and protocol support should be confirmed on the approved sample and production datasheet.

2. How should buyers evaluate the AJ39 5000mAh capacity?

The 5000mAh figure is the battery-cell capacity under the manufacturer’s stated test conditions; it is not the same as the energy delivered to a phone. Usable output varies with voltage conversion, wireless transfer loss, temperature, cable condition, device battery size, and charging behavior. Buyers should compare watt-hour data and request an output-capacity or discharge-curve test for the production cell instead of relying on a promised number of full phone charges.

3. What wired and wireless charging performance does the AJ39 support?

The Type-C output is rated up to 20W using the listed voltage and current profiles, while wireless output is rated up to 15W for compatible receiving devices. Actual charging power and time depend on device compatibility, protocol negotiation, battery temperature, alignment, case design, and state of charge. Device-specific claims, including charging a particular phone to a stated percentage within a fixed time, should be verified during sample approval.

4. What should buyers know about the aluminum-alloy housing?

The AJ39 uses an aluminum-alloy housing and has a published weight of 103g. A metal housing can support a slim, premium product design, but thermal behavior depends on the complete structure, cell, charging coil, PCBA, firmware, and ambient conditions. Buyers should request temperature-rise results for wired and wireless charging and confirm the alloy grade, finish, color tolerance, scratch testing, and electrical insulation design for the final configuration.

5. How should magnetic alignment and phone-case compatibility be verified?

Magnetic hold and wireless efficiency depend on magnet layout, coil alignment, phone model, case material, case thickness, and any metal accessories. The current specification confirms magnetic wireless charging but does not publish a verified magnet grade, holding-force value, or universal case-thickness limit. Buyers should test the intended phones and cases and request pull-force, alignment, foreign-object detection, and temperature-rise data for the approved sample.

6. What safety and compliance documents should an AJ39 buyer request?

Required documents depend on the target market, battery, transport route, and final branded configuration. Buyers should request the applicable battery and transport documents, electrical-safety and EMC reports, wireless-charging compliance evidence where required, material declarations, labeling files, and traceability information for the actual production model. Certification scope and report-model consistency should be checked before shipment.

7. What OEM and ODM options are available for the AJ39?

Standard OEM service starts at 500 pieces for logo and packaging on the existing AJ39 platform. Light customization, such as an approved housing finish, color, documentation, or packaging change, generally starts at 1,000 pieces. Cell, PCBA, firmware, magnetic system, or structural changes are deeper ODM work and generally start at 2,000 pieces. Final MOQ, samples, finish feasibility, tooling, lead time, and certification scope must be confirmed in the quotation.