Batteries are DC current.
Batteries provide Direct Current (DC) while household outlets provide Alternating Current (AC).
Not directing current but DIRECT current, meaning there is no oscillation in the current.
DC
Batteries have chemical energy stored inside them. Of course, when they provide a current, this chemical energy is transformed (in part) into electrical energy.
Batteries and generators provide DC, Direct Current electricity.
They both provide an electrical current.
direct current
A Direct Current, DC.
All batteries provide DC. It does not matter their makeup.
DC (direct current) and DC batteries are not interchangeable in the sense that they refer to different concepts. DC refers to the type of electrical current that flows in one direction, while DC batteries are specific devices that store and provide that type of current. While you can use a DC battery to power a device designed for DC, the specifications such as voltage and capacity must match the device's requirements for safe operation. Always check compatibility before substituting batteries or power sources.
Batteries produce DC because the potential difference is determined by the chemical reaction inside the battery. This voltage is constant.
A way of connecting batteries together to provide more current is to connect them in parallel. This allows more capacity at the same voltage. If the batteries were connected in series the voltage would be increased.