Batteries

A car battery is a type of rechargeable battery that supplies electric energy to a vehicle. Usually this refers to an SLI battery (starting, lighting, ignition) to power the starter motor, the lights, and the ignition system of a vehicle’s engine.

Car starter batteries (usually of lead-acid type) provide a nominal 12-volt potential difference by connecting six galvanic cells in series. Each cell provides 2.1 volts for a total of 12.6 volt at full charge. Lead-acid batteries are made up of plates of lead and separate plates of lead dioxide, which are submerged into an electrolyte solution of about 35% sulfuric acid and 65% water. This causes a chemical reaction that releases electrons, allowing them to flow through conductors to produce electricity.

Common battery faults include:

  • Shorted cell due to failure of the separator between the positive and negative plates
  • Shorted cell or cells due to build up of shed plate material building up below the plates of the cell
  • Broken internal connections due to corrosion
  • Broken plates due to vibration and corrosion
  • Low electrolyte
  • Cracked or broken case
  • Broken terminals
  • Sulfation after prolonged disuse in a low or zero charged state

During our vehicle service, we will inspect and check your vehicle’s battery and can advise on its condition.

We can supply and fit batteries and can quote for a replacement for your vehicle. Contact us on 01189 343354