You may usually keep your Nintendo Switch charging overnight without risk. The Switch is made to remain plugged into the charger for lengthy periods, and it will cease charging the battery when it is fully charged. However, charging the Switch using the supplied AC adapter or a reliable third-party charger is advised. It may be dangerous or cause harm to the Switch if you use a charger that isn't made especially for it or is of poor quality. Additionally, it's a good idea to keep the Switch away from areas where it can be jarred or knocked over when charging. This might hurt the gadget or the charger, endanger your safety, or both. As long as you use the included AC adapter or a reliable third-party charger and keep the device in a secure location while it is charging, it is typically safe to leave your Switch on overnight.