Yes, but you need to use the right cord to avoid a fire or shock hazard. An undersized cord will cause a drop in voltage, loss of power, and overheating.
First, try to avoid using an extension cord if you can. If you must use one:
- Only use an extension cord suitable for outdoor use, even if you're indoors. This reduces the risk of electric shock.
- Check the ampere rating on your charger's nameplate. Match it to this chart for the correct wire gauge (AWG):
For a 120V circuit: If your cord is up to 50 feet long, use at least 16 gauge wire. For 100 feet, use at least 14 gauge. - The lower the gauge number, the heavier and safer the cord. If in doubt, use the next heavier gauge.
Also, make sure the cord is located so it won't be stepped on, tripped over, or damaged. Pull by the plug, not the cord, when disconnecting.
Heads up: Never operate the charger if the cord or plug is damaged. Take it to an authorized service center for repair.