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21700 3.7V 4000mAh 40T 30A Lithium Ion Rechargeable Battery 70g Welded Nickel Sheet For DIY Battery Pack Power Bank

21700 3.7V 4000mAh 40T 30A Lithium Ion Rechargeable Battery 70g Welded Nickel Sheet For DIY Battery Pack Power Bank

by roza cinnie

21700 3.7V 4000mAh 40T 30A Lithium Ion Rechargeable Battery 70g Welded Nickel Sheet For DIY Battery Pack Power Bank

Prices updated 14 May 2026

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Product Description

21700 3.7V 4000mAh 40T 30A Lithium Ion Rechargeable Battery 70g Welded Nickel Sheet For DIY Battery Pack Power Bank