What is Conversion Function? JavaScript provides different built-in functions to convert the values from one type to another type. Different types of conversion function are as follows:  Integer Conversion. When the user type a value in a textbox, the value is consider to be string. The browser may not be able to identify its type exactly.
Keep in mind that most of the time, the battery will not be empty when you plug in, thus reducing charging time. To recharge a completely empty car battery from an ordinary 120-volt socket, the Chevy Volt plug-in hybrid would need 10 hours and the Nissan Leaf EV would need 20 hours.
It will take the 1W set up 120 hours to fully charge. However, a full charge might not be required. If the lights will energize to a useful light level for 1 hour with just a 50% charge on the battery, then 50% of the full charge time is required to provide 1 hour of illumination. If 10 hours of illumination is required, then more than 50% full charge is required.