Your engine’s battery: all you need to know about how it works

The primary purpose of the battery is to provide electrical energy to crank the engine during starting.

Contrary to what many people think, a battery is comprised of stored chemicals, not electricity.

Thanks to the battery you can turn on the accessory systems such as the radio, entertainment system, power windows & door locks, power seats & lighting.

Jumper cables

Batteries can fail prematurely due to a number of conditions which can be prevented by regular inspection and maintenance. Total created the Digital Service Book to help you remember the next maintenance due on your battery and other main parts of your vehicle. It will also allow you to track your car expenses and store important documents related to your car.

These conditions include:


Corrosion can reduce the available voltage and effectiveness of the charging system as it increases electrical resistance when it’s on the positive and negative terminal ends and cable connections.

A low fluid level

Low fluid level may be explained by:

  • Battery not being maintained on regular basis.
  • Not adding distilled water when needed.
  • Cracked battery case.
  • Charging system producing higher than normal voltage.
  • Battery Overheating.

A faulty charging system

A faulty charging system can also damage the battery. Undercharging of the battery has na effect of hardening sulfate on the internal plates which weakens the electrolyte, also known as chemical mixture.

Overcharging can kill the battery, overheat it, make it lose its fluids, make it swell & even explode.

A poorly secured battery will most likely create vibrations which can weakens connections, damage the internal components

Excessive battery heat

will damage your battery. Battery heat is generated in two ways. The ambient temperature of the area surrounding the battery can reduce the life of the battery if it is too high. A charging system producing higher than normal voltage, usually 14.6 volts or more, can generate excessive heat within the battery and damage it

Dead battery

It can go dead due an excessive parasitic draw or drain in the electrical system of the vehicle will eventually fail prematurely.

Repeated cycling from fully charged to fully discharged will reduce the capacity and life of the battery.

You can always do a visual inspection of the battery to make sure there are no leaks, cracks, or bulges in the case. Leaks will usually be made obvious by the presence of corrosion and acid reacting with whatever it touches.

All batteries require routine maintenance to ensure the battery is in good working condition.