What kind of battery are we talking of? In cars, the only battery you can use is the 12V, and those are pretty dangerous if you crack one open due to the acid that's put in them. Otherwise the LiPo (Lithium Polymer) battery is the most dangerous, as it can cause serious burns, and even burst into flames when over-charged.
It is not possible to play Games with a Dead Battery. You are required to charge it first. If the battery is very less charged up then i will say no it is not dangerous as battery keep on supplying same amount of power till it's last charge.If your battery is dead in a manner that it is not getting charged but you can turn on Macbook if you plug in the charger then Yes, it is dangerous to play games and even using it is dangerous. The battery may leak or blast and cause damage to your Macbook or to you.
No, a car battery does not have mercury in it. It would be very dangerous to have mercury in a car battery.
It is dangerous
Difinitely. Sulfuric acid.
no not even if its new its way to dangerous.
More dangerous Most dangerous
A battery is a fortification that has heavy weapons to destroy the target and when they plunge into the "battery-smoke" they are plunging into the area where the battery had fired a weapon which is incredibly dangerous.
With or without the battery the water that is in the alcohol can damage the circuitry and components.
The battery with the most cells!
It will ruin your clothes, burn your skin and don't get it in your eyes.
Im not sure but if you get it on your skin you have to put plenty of water on it
Yes it is dangerous as the charger might be charging at a higher voltage than your phones battery charger also the polarity might be different which could cause a fire