4A Auto DC to DC voltage polarity exchange and reverse,protection circuit-charge For Sale

4A Auto DC to DC voltage polarity exchange and reverse,protection circuit-charge


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4A Auto DC to DC voltage polarity exchange and reverse,protection circuit-charge:
$4







100% Brand New and High Quality This DC DC Voltage polarity exchange circuit can auto supply correct +ve and -ve voltage when the batteries are connected in any orientation. It will automatically switch to +ve and -ve. It is good to protect charging or other modules. In charging modules, where reverse polarity will damage it, this PCB can 100% sure to supply correct polarity -ve/+ve. No need to care the batteries are connected wrongly.
DC3V-20V. Current: 4A, max 6A Dimension: 9.7x9.2x4.6mm

Package Included: 1x Voltage Polarity Exchange and Reverse Protection circuit charge




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