Tools & Home Improvement > Power Tool Parts & Accessories > Power Tool Batteries
BT-21 Replacement Battery Pack
Brand: Generic / OEM
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Audited BOM: 4 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
Low-quality lithium cells have lower actual capacity and degrade faster, leading to a short lifespan and customer dissatisfaction.
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