Why Preparation Decides the Timeline
An OEM battery project spends most of its calendar time waiting for information, not waiting for the factory. Every missing input becomes a round of questions, and every round of questions lands on the same engineering queue. Brands that arrive with the inputs below move from first contact to samples in a fraction of the usual time, because the supplier can quote and draw instead of asking. This page is the onboarding checklist: what to prepare, why each item exists, and what the supplier should return at each stage.
Market and Compliance Inputs
- The destination countries or regions for the product, and any markets planned within a year, because compliance work follows the market list
- The marks and approvals the channel expects, so the certification plan can be written per model
- Plug, connector and socket standards in use in the market
- The languages required for labels, manuals and packaging
- Registration duties the importer will hold, so documentation matches what the authority will ask for
Product Definition Inputs
- The voltage class and the capacity or energy target, with the duty cycle behind them
- Housing preferences: footprint, material, color, display or plain, and whether an existing housing is to be reused
- Terminal and connector types, including the communication connector and pinout where an inverter family is already chosen
- Protection and communication expectations: the protocol document for the inverter or controller in the system
- The installation environment: indoor or outdoor, temperature extremes, and any mounting constraints
Branding and Packaging Inputs
- Logo files and label artwork, with the color references the print house needs
- The packaging specification or the willingness to accept the supplier's standard export packaging
- Manual language and the legal text the market requires on packaging
- Barcode, serial number and SKU scheme, so cartons, packs and pallets read into the buyer's systems without rework
Commercial Inputs
- An annual volume plan by model, even in ranges, because tooling and component choices depend on it
- A target cost range, so the supplier proposes a specification that can meet it instead of quoting blind
- Incoterms and destination port for the quotation
- Payment terms the buyer's finance side expects
- The launch window, with any fixed dates such as a trade fair or a season
None of these items commits the buyer to numbers in public; they are inputs to a quotation, and the quotation that comes back should carry them as assumptions so both sides can see what the price rests on.
What the Supplier Should Return at Each Stage
- A feasibility note after the first exchange: which requests are standard, which need development, and which carry tooling
- A drawing and a draft datasheet for the proposed configuration, with the open points marked
- A sample plan: how many units, which configuration, and what the samples cost and take
- A quotation that references the datasheet revision and lists its assumptions
- A certificate plan per model, stating which documents exist and which are pending
Keep the exchange in one thread and one document version. Projects drift when the product definition lives in a chat, a drawing and a spreadsheet that disagree with each other. The definition document that both sides confirm becomes the reference for the sample, the quotation and the production order alike. A version letter on that document, and a running note of which questions are still open, prevents the slow argument about who agreed what, and it gives any new colleague on either side a place to start.
An Onboarding Table Worth Copying
| Stage | You provide | Supplier returns |
|---|---|---|
| Inquiry | Market list, product concept, volume plan | Feasibility note, questions |
| Definition | Specifications, branding files, connectors | Drawing, draft datasheet, quotation |
| Sample | Test plan, evaluation criteria | Samples, protocol documents, test records |
| Pilot | Order for a pilot batch, market feedback | Pilot units, certificates for the model |
| Production | Firm order against the agreed revision | Goods, documents, spare part plan |
Where YueQi Fits
YueQi New Energy, based in Zhongshan, Guangdong, runs OEM and ODM projects for LiFePO4 storage products across its catalog lines, and its site publishes the six-step development flow with the inquiry inputs it expects. The onboarding items above are the practical version of that list. Each project receives its feasibility note, drawings and quotation against a written specification, and any term that depends on the project, from tooling to certificates, is to be confirmed in writing at the stage where it becomes real.
Next step
Send your application, target specification and estimated quantity with your inquiry, and we will confirm matching products, samples and document requirements in writing. See the product lines or request a quote.