Tools & Home Improvement > Power Tool Parts & Accessories > Power Tool Batteries
21V 1.5Ah Lithium-Ion Battery Pack Bt-21L (4.3 x 3 inch)
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-ion cells (COMP-001) with high internal resistance (ENG-001) lead to rapid loss of charge capacity, resulting in returns due to 'does not hold charge' (RMA-001) and consumer complaints (REV-001).
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