How to Build a Battery Approval File for a Wireless Gaming Headset OEM Project

The approved case card identifies WH6 as an OEM project for a Korean gaming brand, importer and distributor. Its scope included 2.4GHz wireless, low-latency positioning, RGB, custom logo and packaging, KC-related requirements, industrial design, structure, PCB, RF, tooling, quality control and mass-production support.

The project datasheet identifies a 2.4G + virtual 7.1 version, black and white variants, a custom-marked 103040 battery with 1200mAh rated capacity, a Type-C charging interface and a customized manual and retail set. The product specification also records a 50mm driver, detachable microphone, 3.5mm wired input, RGB control and a ten-minute no-signal sleep behavior.

A sample report dated November 11, 2021 recorded about 11 hours of use with LED lighting on and about 20 hours with lighting off. It also stated that a KC-certified battery was required and that the certification number needed to be indicated. These are project records for the tested sample and buyer requirement; they do not establish that every WH6 version, battery or production lot has identical runtime or certification status.

Capacity is one input to a complete system. Runtime also depends on the wireless electronics, audio output, volume, RGB state, virtual-sound processing, microphone use, firmware power management, sleep behavior, battery condition and the test stop point. Two headsets carrying the same nominal capacity can produce different runtime evidence.

Compliance is another layer. A buyer may require a battery with particular certification or transport documentation, but that requirement is not satisfied by printing a number on a label. The project team needs to confirm that the submitted documents, battery identity, marking and production component refer to the same approved item.

User experience adds a third layer. The WH6 sample record noted that the charge test passed while the red charging indicator was not sufficiently visible and required adjustment. This distinction matters: the circuit may charge correctly while the user-facing status indication still needs improvement.

The approval file keeps these questions separate and traceable. It allows procurement, engineering, compliance, quality and packaging teams to review the same battery configuration without turning a sample note into an unsupported retail promise.

The file begins with the commercial requirement: target market, headset SKU, intended wireless and lighting modes, runtime positioning, charging interface and any market documentation requested by the buyer. This creates context for engineering and supplier evaluation.

The technical layer defines the battery or pack identity, rated capacity, dimensions, connector and wiring, protection arrangement, permitted operating relationship with the charging board, and approved physical fit. Exact limits should come from the selected battery and headset engineering documents rather than from a generic article.

The evidence layer stores the approved sample identifier, runtime protocol, charging observations, safety and transport documents required for the destination, artwork or marking reference, and sign-off status. The production layer connects these records to the BOM, incoming inspection and outgoing-quality checks.

A useful approval file is concise enough to use but complete enough to reveal mismatches. If the marking, certificate, physical battery or BOM supplier differs, the release should stop for impact review.

Start with identity. Record the battery model or pack code, rated capacity, dimensions, connector, polarity, wire arrangement, protection configuration and supplier reference. Photograph or scan the approved marking. For WH6, the project requirement identifies a 103040 model and 1200mAh marking direction. A new buyer should confirm the final identity on the approved physical sample rather than rely on the model name alone.

Connect identity to documents. When a Korean project requires a KC-certified battery, procurement should verify that the document supplied for review names or otherwise covers the battery being purchased. The marking reference and certification number should be checked against that evidence. This article does not declare WH6 certified; it explains the requirement recorded in the project test and datasheet.

Connect identity to mechanical integration. Confirm the battery fits the intended cavity and that wires, connector and protection components do not create pressure, movement or assembly interference. The approval should reference the production-intent headset structure, because a battery that is acceptable alone can still be unsuitable when cable routing, padding or fasteners are considered.

Connect identity to charging. WH6 records a Type-C charging input and 5V specification. The project team should test the final battery with the selected charging board, cable, firmware and indicator behavior. Record charge-state indication, full-charge behavior and any user-visible issue. The sample report's red-indicator visibility note illustrates why charging function and indicator clarity should be separate checkpoints.

Connect identity to runtime. Name the headset sample revision, battery conditioning, wireless mode, RGB state, audio content, volume, microphone state, virtual-audio mode, start condition and end condition. The WH6 sample's approximately 11-hour LED-on result and approximately 20-hour LED-off result are meaningful because they demonstrate two different operating states. They should not be averaged or turned into one unqualified number.

Connect identity to retail files. The manual, label and packaging should state only approved information. If a KC number must appear, define its location, size and revision owner. If runtime appears in sales material, preserve the relevant condition in wording or supporting documentation.

Finally, connect identity to production. Put the approved battery reference into the BOM and incoming-inspection plan. Quality records should confirm that production uses the same controlled item and marking. A substitute cell, pack, connector, protection board or supplier should trigger a documented review of fit, charging, runtime, documents and claims before release.

WH6 provides a clear example because the sample report separated LED-on and LED-off use. The difference between approximately 11 and 20 hours shows why RGB state belongs in the claim and test matrix. It does not mean every RGB headset will show the same difference.

Wireless and audio conditions also matter. A 2.4GHz headset may behave differently when volume, audio content, microphone activity or processing state changes. Wired 3.5mm use should not automatically be treated as equivalent to powered wireless use. The test protocol should follow the actual retail scenario.

Procurement teams should ask for repeatable conditions, not only a screenshot of a timer. At minimum, identify the sample, battery, start charge, RGB state, connection mode, volume, content loop and end criterion. For higher-risk claims, agree on repetition and production sampling with the manufacturer.

Retail wording should remain narrower than the evidence. If only one sample and one condition have been recorded, describe the result as a project sample observation until the buyer approves a broader claim-validation plan.

The public case scope includes industrial design, structure review, PCB and RF support, antenna and range validation, tooling, sample adjustment, battery marking and KC-related coordination, customized logo and packaging, trial production, quality checks and mass-production support.

Battery work was not isolated from the product. The project also controlled black and white variants, Type-C transmitter and charging interfaces, RGB behavior, detachable microphone, manual files, headset bag and accessory packaging. That cross-functional context is important because a battery change can affect structure, runtime claims, charging instructions, labels and shipment documentation.

For a new OEM project, MACH can evaluate the requested headset platform and organize the confirmed approval scope. Certification, MOQ, testing and commercial terms depend on the selected battery, customization, market and final project agreement.

Approvals should name the exact revision and approver. A message that says "battery OK" cannot show whether capacity, supplier, marking, charging or documents were actually reviewed.

Open findings should remain visible. In the WH6 sample record, charging passed but indicator brightness required adjustment. A controlled gate can close the electrical result while keeping the user-interface action open until the revised sample is checked.

A battery substitution may be proposed because of availability, lead time or cost. Even when capacity and dimensions appear similar, the protection arrangement, connector, wire length, supplier documents or actual discharge behavior may differ.

The change request should identify the old and proposed parts, reason, affected production quantity and implementation date. Engineering reviews fit and charging; quality reviews inspection; compliance reviews documents and marking; the buyer reviews runtime and retail claims.

Revalidation should match the risk. A label correction may need document and artwork approval. A supplier or cell change may require physical, charging and runtime evaluation. The final decision and effective BOM revision should be traceable.

The WH6 Korea OEM project shows why buyers should separate battery identity, rated capacity, RGB-on runtime, RGB-off runtime, charging behavior, KC-related requirements and production marking. Its sample records provide useful evidence without supporting an unlimited claim across every configuration.

A structured approval file lets the buyer answer four questions: which battery is approved, what was tested, which market evidence is required, and how production remains tied to that approval.

MACH industry can review a wireless gaming headset brief and coordinate the confirmed product, battery, RF, branding, packaging, quality and manufacturing scope for an OEM/ODM project.