Identify chemistry and format
Similar-looking coin cells may have different chemistries and voltage characteristics. Use the exact model designation.
ENGINEERING BRIEF
Good requirements make better decisions.
Jetray’s corporate website describes cell selection, BMS design, prototyping and custom pack services. Use this brief to discuss the scope and feasibility of your own project.
From requirements to review
Make the important interfaces explicit.
Coin-cell sourcing for compact electronics and backup functions. Review chemistry, dimensions, pulse demand and the mounting method before choosing a model.
Photograph from the Jetray corporate factory page.
Review pulse behavior
A nominal capacity figure alone does not describe voltage response under short current pulses.
Confirm the mounting interface
Specify a holder or supplier-approved tab assembly, polarity and mechanical drawing before ordering.
A practical project brief
What to share with the engineering team.
Electrical
Nominal system voltage, allowable input window, continuous current, peak current and peak duration.
Mechanical
Available envelope, fixing points, weight constraints, cable routing, connector and polarity.
Charging & communication
Charger model, charging opportunities, temperature sensing and required BMS or communication signals.
Project & documentation
Intended use, target markets, sample quantities, forecast volume, required test evidence and revision controls.
Project review stages
Keep the decisions and the documents together.
Use these review gates to organize a project discussion with the supplier. The agreed scope and deliverables are confirmed for the individual project.
| Stage | Information to align | Decision to record |
|---|---|---|
| Requirements brief | Exact cell chemistry, pulse profile and device cutoff voltage; Storage, replacement access and intended handling conditions | The equipment needs, mandatory limits and open questions. |
| Configuration review | Record the cell designation, holder or approved tab drawing, polarity and the circuit load. Primary cells must not be charged. | The proposed model or design scope, interface drawing and document revision. |
| Sample evaluation | Representative equipment, operating cycle and acceptance procedure. | Results, deviations and changes needed before the next stage. |
| Order preparation | The approved configuration, quantity, packaging and required shipment documents. | The purchase specification, acceptance method and agreed commercial terms. |
A useful conversation starts with a specification
Tell us what your equipment needs.
Share the load, dimensions and intended use. Ask for a current model specification and a project review.