It would depend upon how many ampere-hours the battery bank can store and how often the 50 watt panel charges at full power. Obviously, if it takes 3 times as long to charge as it does to discharge (50/12 vs 1500/120), your battery is going to go flat in no time.
an Inverter is an electrical device that changes DC to AC.
No it is no safe to, it will probably kill you battery. It uses 200watts.
Because it is suppose to start if the battery is hooked up.
Electrons flow through wires that are hooked to a battery. The battery's negative terminal repels the electrons, while the positive terminal attracts them.
The meter on your battery charger will be in the green
Wasting energy if you are hooked up to the grid and charging your battery from a power socket.Inverter efficiency can never be 100% and this arrangement only makes sense to use during power cuts. If your battery is charged by solar energy or wind turbine then you will be saving power.
the alternator
To convert DC (battery) to AC to run household appliances you need an "inverter". Because they are usually hooked up to a car battery (12V) they can't provide too much power. Usually enough to run lights, a small refrigerator, TV or laptop computer OR similar low power equipment.
This is because each time the battery is disconnected, the computer in the car loses power. When the new battery is hooked up, the computer system needs to be reset to stop the lights from blinking.
yes
Chemical energy in the battery is turned into electrical energy when the battery is hooked up to an electrical circuit.
Use an "Inverter". They make a lot of inverters for 12v but few for 6v. You could use 2 6v batteries hooked in series though. Just make sure the inverter is big enough to power what you wish. A 300 watt one will power a electric razor, or small electronics fine. A 1000 watt would power a computer or a laptop also, etc.