Lead-acid batteries have been around for approximately 150 years. However, most modern cars still use these units but are now more advanced in capability and safety.
Many new cars will have sealed maintenance-free (SMF) lead-acid batteries.
Modern lead-acid batteries are very different from the traditional flooded ones, which required routine electrolyte level checks and frequent top-ups with distilled water.
New car batteries are usually designed to be more resistant to corrosion and vibration.
These features reduce the need for day-to-day attention. However, “maintenance-free” doesn’t mean “carefree”.
You still need to maintain your car’s modern battery. Here’s how:
Essential Maintenance Tips for Modern Car Batteries
Even with improved technology, batteries still require attention to perform at their best. Here’s what you should keep in mind:
Clean Battery Terminals
Those living along the coast will know that batteries that aren’t cleaned regularly can start to get dirty. This is due to the formation of corrosion that can build up on the terminals, affecting its connectivity and starting performance.
Check for white or bluish buildup and clean it off with a wire brush and baking soda solution if needed.
Check the Charging System
Your car’s battery is recharged by its alternator. If it’s faulty, or its drive belt isn’t tensioned correctly, it can undercharge or overcharge the battery, reducing its lifespan.
Have your mechanic test the charging system during regular services.
Secure the Battery
It shouldn’t come as a shock, but strong vibrations can damage your vehicle’s battery, even if newer models are better at absorbing them.
Make sure the battery is mounted correctly with a secure bracket. If not, make sure to secure it in place.
Avoid Short Trips
Those who do frequent short drives don’t give their battery enough time to recharge fully.
If your driving pattern is primarily short distances, occasionally use a trickle charger to maintain a full charge.
Mind the Heat
Excessive heat can accelerate chemical reactions inside the battery and lead to internal damage.
Park your vehicle in the shade or in a garage during hot months to reduce exposure.
If you’re unsure if your modern car battery needs attention, here are some signs to look out for.
Signs Your Battery Needs Attention
There are common indications that your vehicle’s battery needs some attention. Usually, you can easily see and hear these common warning signs, which include the following:
- Slow engine crank
- Dim headlights
- Dashboard battery warning light
- Clicking sound when turning the key
- Unusual electrical issues
These indications may signal that your battery is struggling, even if it’s technically still working.
But if you’re worried about your car’s modern battery, you can visit a Willard Xpress outlet or battery stockist.
