Document the complete envelope
Share dimensions, tolerance, lead length and connector direction. Allow for the manufacturer's mechanical guidance.
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.
Review lithium polymer battery options for space-conscious devices. Begin with the full mechanical envelope, charging interface and electrical duty cycle.
Photograph from the Jetray corporate factory page.
Describe the charge system
Provide the charger or charging IC details, voltage limits and temperature monitoring requirements.
Validate the assembled device
Evaluate the battery in its actual enclosure under normal and expected worst-case operating conditions.
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 | Voltage window, load profile and charge-system requirements; Mechanical allowance, enclosure heat and assembly handling | The equipment needs, mandatory limits and open questions. |
| Configuration review | Include cell and pack dimensions, tolerances, lead direction, mechanical allowances and the agreed charging configuration. | 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.