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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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