Amazon.com: 1Pcs 18650 3.7v 4400mAh 1S2P Li ion Rechargeable Battery Pack with 2.0Pin JST-PH Connector 16.28Wh/4.4A, Blue, 6.6 x 1.8 cm (19.28Wh/4.4A) : Health & Household
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18650 Rechargeable Battery, 3.7v Lithium Battery, Li-ion 18650 Rechargeable Battery, 1800mah Large Capacity Button Top Battery, For Flashlight, Doorbell, Headlight, Remote Control Car And More - Temu