1) In parallel combination each appliance gets the full voltage.

2) If one appliance is switched on/of then others are not affected

3) In a parallel combination, it is very easy to connect or disconnect a new appliance

Advantages of connecting electrical devices in parallel with a battery:

Connecting electrical devices in parallel with a battery offers several advantages over connecting them in a series. Here are three key advantages explained in detail:

1. Independent operation:
When electrical devices are connected in parallel, each device operates independently of the others. This means that if one device fails or is disconnected, the others will continue to function without any interruption. This is particularly beneficial in scenarios where the failure of one device should not affect the overall operation of the system. For example, in a household with multiple lights connected in parallel, if one light bulb burns out, the others will still provide illumination.

2. Shared voltage, increased current:
Connecting devices in parallel allows them to share the same voltage source while increasing the total current available to the circuit. In a parallel circuit, each device receives the same voltage as the battery, ensuring that they operate at their optimal voltage levels. Additionally, the overall current drawn from the battery is the sum of the currents consumed by each device. This means that parallel connections can handle higher power demands compared to series connections. For instance, if multiple appliances in a home are connected in parallel to a power source, each appliance can draw the current it requires without affecting the others.

3. Redundancy and reliability:
Parallel connections provide redundancy and enhance the reliability of the system. If one device fails or experiences a fault, the others can continue to function, providing a backup or alternative source of operation. This redundancy ensures that the overall system remains operational even if individual components encounter issues. For example, in a parallel battery configuration for an electric vehicle, if one battery fails, the remaining batteries can still power the vehicle to some extent, allowing it to continue its operation.

Conclusion:
Connecting electrical devices in parallel with a battery offers advantages such as independent operation, shared voltage with increased current, and improved redundancy and reliability. These benefits make parallel connections suitable for scenarios where uninterrupted operation, optimal voltage levels, and backup options are crucial.