Electronics > Portable Audio & Video > Portable Power Banks
30000mAh 22.5W Portable Power Bank with Digital Display EL-2938
Brand: Generic / OEM
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Audited BOM: 10 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
Undersized protection components (ENG-002) lead to charge controller failure (COMP-003), resulting in total product failure (RMA-001) and customer dissatisfaction (REV-001, REV-006).
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