Power Bank Product Specification Template
Freeze one measurable power bank SKU before validation and mass production. Control product identity, cell/PACK, charging, mechanics, CMF, packaging, compliance, acceptance and revision status in one baseline.
Buyer & Sourcing → · RFQ Template → · Engineering Resources →
Four Areas to Freeze Before Validation
Make the exact SKU testable and traceable across four production-critical areas.
1 · Electrical & Charging
Capacity/Wh · input/output · PD/PPS · ports · cables · wireless · simultaneous use.
2 · Cell / PACK & Components
Cell model/supplier · PACK architecture · protection · PCBA/firmware · traceability · substitution.
3 · Mechanical, CMF & Packaging
Dimensions · housing · stack-up · mechanism · color/texture · logo · artwork · labels · pack-out.
4 · Acceptance, Compliance & Revision
Acceptance · market evidence · labels · golden sample · BOM/firmware revision · change control.
Product Specification · 12 Controls
Every production-critical item should have an approved value, test method, controlled reference or a visible To Confirm state.
01 · Document Control
Spec no. · SKU/model · revision · date · approver · RFQ/PO/sample IDs
02 · Product Identity
Platform · market · mAh · voltage · Wh · dimensions · weight
03 · Cell / PACK
Cell source · configuration · protection · traceability · incoming criteria
04 · Input / Output
USB-C · USB-A · combined output · pass-through · charge-time method
Define the exact SKU first. Identity, cell/PACK and I/O become the baseline for later validation.
Make charging measurable. Protocols, cables, mechanics and CMF should be verifiable against the approved sample.
05 · Charging Protocols
PD · PPS APDO · other protocols · cable rating · direction · test method
06 · Ports / Cables / Wireless
Port layout · built-in/retractable cable · magnetic/wireless · plug/display
07 · Mechanical
Dimensions · stack-up · tolerances · fastening · mechanical validation
08 · CMF / Branding
Pantone · texture · logo · printing · indicators · appearance reference
09 · Packaging
Pack type · artwork · barcode/labels · manual · accessories · carton marks
10 · Compliance / Labeling
Market · product scope · battery/transport evidence · labels · declarations
11 · Acceptance Criteria
Energy · protocol · thermal · mechanical/cosmetic · aging · sampling
12 · Change Control
Golden sample · BOM/firmware · alternates · change notice · approval · revision history
Release and control the approved state. Packaging, compliance, acceptance criteria and BOM/firmware revisions should stay traceable.
Release One Revision, Then Control Every Change
RFQ compares proposals. Product Specification freezes measurable requirements. Golden Sample approves the physical state. PO & Change Control govern what is ordered and what may change.
Use measurable targets, test conditions, approved references and controlled revisions.
RFQ Template → · Sample Approval → · Golden Sample → · BOM & Change Control → · Validation & NPI →
Power Bank Product Specification FAQ
When should a buyer create the product specification?
Once one SKU is defined well enough to control measurable requirements. Update the revision as engineering and samples are approved.
Can an approved sample replace the written specification?
No. The sample anchors the physical state; the specification controls electrical values, components, firmware, tests and packaging revision.
How detailed should PD and PPS requirements be?
Define port direction, power, required profiles or PPS APDO behavior and the verification method. “Supports PD” alone is too broad.
What happens when a component, firmware or packaging state changes?
Assess impact, validate where required, approve the change and release a new controlled revision before production.