About Battery Capacity

Today I watched  about electric plane on TED movie

電化による素晴らしい未来の空の移動

Recently electric power  has attracted attention. Because our society  must care about  our environment  like  carbon dioxide , noisy and earth resources.

Battery power give us to decrease carbon dioxide, and subside  noisy and save earth resources  because we replaces gasoline-power with electric power.  

However we should be careful about battery.

These days battery capacity is  increasing rapidly to use cars or tool for a long time as possible. However high capacity battery has high energy . 

In other words, the higher battery capacity is , the more we are exposed to risk.
For example, If we drive electric cars which have high capacities and we encounter traffic accident, these  cause big  explosion  and  we may be  badly injured . 
This accident possibility  is high. 

So we should use battery with correct way and be careful to use battery.

Moreover, companies which make  products with using batteries  should attach safety construction and safety circuit to their product.

In summary , we should  be careful for battery and we use it with correct way.