1PC 3.7V to 9V 5V 2A DC-DC Step Up Boost Module 18650 Lithium Battery Charging Discharging Board One adjustable module

1PC 3.7V to 9V 5V 2A DC-DC Step Up Boost Module 18650 Lithium Battery Charging Discharging Board One adjustable module
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sku: 1005005814694627
$1.72
Shipping from: China
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