This is an electric mower with a cord that can be plugged into a socket outlet. The issues with the corded electric mower the extension that may not be able to get to the area you want to cut. They are less expensive than those without a cord.
A rechargeable battery powers them. You can get a more powerful battery if you want the mower to operate at its peak. You can also buy the model that self-propelled to make your work easier. You can purchase two rechargeable batteries in case you want the electric lawn mower to operate for a long time when used.