4000mah 21700 Li-ion battery 30A 40T 3.7V, 100% brand new and full capacity. 3.7 v lithium 21700 rechargeable battery

4000mah 21700 Li-ion battery 30A 40T 3.7V, 100% brand new and full capacity. 3.7 v lithium 21700 rechargeable battery

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