Health & Household > Wellness & Relaxation > Massage & Relaxation > Electric Massagers > Handheld Massagers
Portable Digital TENS EMS Massager AM-137
Brand: Generic / OEM
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Audited BOM: 9 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
The choice of a low-cost lithium-ion battery without adequate protection (ENG-002) leads to its rapid degradation and failure, resulting in devices that do not turn on or charge (RMA-001), as reported by consumers (REV-001).
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