1)	The life of the battery is more than 2 years for both automobile and motorcycle battery (The length of time is subjected to the condition of the engine and electric system of the car).
2)	Starting the engine becomes more difficult and takes longer time.
3)	The signal lights vary with the acceleration of the car.
4)	The horn sound is lower than the average level.
5)	Driving under congestion causes improper recharging. For the motorcycle, engine power drops when accelerates.
6)	Battery needs often refills of purified water (except for the case of maintenance-free battery).