When the cables are incorrect, reverse polarity can occur. The current goes in the wrong direction when the polarity is reversed. If anyone touches the device, it can cause electrical shocks or damage it.

Can reverse polarity damage a battery?

It may discharge the battery with spark or permanently damage the battery. The heat produced by the reverse polarity in the battery may cause hydrogen gas (ignitable) which may explode the battery casing.

What would happen if you reverse the polarity?

Reversed polarity can damage or short-circuit your appliances. This wiring mistake within outlets can cause household appliances to overheat or damage the internal circuitry and wiring.

Does polarity matter when charging a battery?

1 Answer. Absolutely YES the polarity does matter. Even though your cable ma not indicate any difference in the wires, your power supply should have an indication.

What is the polarity to charge a battery?

When we charge a battery, we may accidentally mix up the cables and connect them to the incorrect terminals. This is called reverse polarity. The reversing of the poles occurs when the negative cable is connected with the positive and the positive cable with the negative.