Your car’s battery may be out of sight, but it should never be out of mind. Modern vehicles rely on batteries not only to start the engine but also to power complex electronics and safety systems. A flat or failing battery can leave you stranded and frustrated. Fortunately, a little knowledge and preventative care can extend battery life and ensure reliable performance.
How Car Batteries Work
Most vehicles use lead‑acid batteries. These consist of lead plates submerged in an electrolyte solution of sulphuric acid and water. During discharge, a chemical reaction produces electrical energy. When you start the engine, the alternator recharges the battery by reversing this chemical process. Batteries are rated in cold cranking amps (CCA)—the amount of current they can deliver at ‑18 °C—and reserve capacity (RC)—how long they can power loads when the alternator fails.
Signs of a Failing Battery
- Slow Cranking – If the engine turns over sluggishly, the battery may be weak or the terminals corroded.
- Dim Lights & Electrical Issues – Flickering headlights, malfunctioning infotainment systems or warning lights can indicate a failing battery or charging system.
- Age – Batteries typically last three to five years. If yours is nearing this age range, schedule a check‑up even if no symptoms are present.
- Swollen Case – Extreme heat can cause the battery case to swell, which is a sign of internal damage and requires replacement.
Maintenance Tips
- Keep Terminals Clean – Corrosion on battery terminals increases resistance and reduces charging efficiency. Clean terminals with a mixture of baking soda and water and apply a thin coat of petroleum jelly to prevent future corrosion.
- Check Electrolyte Levels – For serviceable lead‑acid batteries, open the caps and ensure the plates are covered with electrolyte. If low, top up with distilled water only—never tap water.
- Avoid Short Trips – Frequent short journeys don’t give the alternator enough time to recharge the battery fully. Combine errands or take occasional longer drives to ensure full charging.
- Turn Off Accessories – Before starting the engine, turn off lights, radio and other accessories. This reduces the load on the battery during cranking.
- Secure the Battery – Ensure the battery is properly secured in its tray to prevent vibration damage. Check clamps and hold‑down hardware regularly.
- Charge During Idle Periods – If you don’t drive your vehicle often, use a smart trickle charger to maintain the battery. This is especially important for vehicles parked for weeks or months.
Choosing the Right Replacement
When it’s time to replace your battery, consider engine size, climate and power requirements. Vehicles with start‑stop systems or high electrical loads may require enhanced AGM or EFB batteries. Consult your vehicle’s manual and ask a battery specialist for guidance. At Lit‑tec Plus Ltd, we carry a range of batteries and provide professional installation and disposal services.
Conclusion
A well‑maintained battery is essential for trouble‑free motoring. By recognising warning signs, practising preventative maintenance and selecting the right replacement, you can avoid unexpected breakdowns and extend battery life. For all your battery needs—from distilled water and acid top‑ups to charging services and sales—trust Lit‑tec Plus Ltd. Contact us today to keep your vehicle running smoothly and reliably.