5 Factors That Can Shorten Commercial Truck Battery Lifespans
It takes a lot of energy to power a commercial vehicle, especially if you drive long hauls and have multiple auxiliary systems drawing on the battery. Because commercial fleets require higher electrical output than passenger vehicles, they need a battery or batteries that can withstand the electrical demand. Today’s products are designed to handle the increased load, but poor maintenance can still eat away at even the highest quality batteries.
Here are some factors that can shorten their lifespan.
#1: Extreme Weather Conditions
High temperatures increase the rate of chemical reactions in a battery, decreasing the service life. Heat also evaporates the electrolyte, which can lead to internal damage and expose the lead plates. The plates will corrode faster if that occurs and affect the battery’s ability to complete the chemical-to-electrical conversion. Plastic battery cases are also prone to warping when left in extreme heat for long periods.
Conversely, cold weather slows the chemical process, reducing the Cold Cranking Amps and making it more difficult to power the engine. Oil can thicken, placing an increased demand on your battery as it works harder to cycle it through the engine. Combine freezing temperatures, short trips and heavy idling, and you’ll likely face limited charging capacity.
#2: Corroded and Loose Battery Connections
The contact points are where your battery connects to the electrical system. Corrosion and debris affect the battery’s ability to transfer energy to your engine and auxiliary systems. Rust and dirt insulate the charge and reduce the electrical current, placing an increased demand on your battery. Dimming lights and hard starts are typical warning signs.
Vibrations caused by poor driving habits and engine movement may also loosen battery connections over time. That impedes the contact between those points and the alternator and diminishes the battery’s ability to hold a charge. Check for signs of corrosion buildup and tighten terminals if they’re wobbly.
#3: Overusing Electrical Accessories While Idling
Your truck’s alternator uses less power during idling, which is problematic if you’re using high-draw systems like refrigeration, HVAC and liftgates. They eat up more power than the alternator can generate, so the battery must make up the difference. That results in more frequent discharges without allowing sufficient time between cycles for full recharge.
That may cause:
- Sulfation
- Reduced charge capacity
- Operational issues
- Shorter battery service life
- Alternator overload
- More frequent repairs and replacements
Using a dual battery system, installing deep cycle batteries and adding auxiliary power units can reduce the risk of excess wear and tear.
#4: Old or Poorly Maintained Charging Systems
The alternator and voltage regulator must be properly maintained to support battery operation. An old or improperly maintained alternator won’t produce the necessary current to power your engine and electrical systems. Commercial vehicle batteries can’t fully recharge when that occurs, draining over time. A faulty voltage regulator and loose drive belts further exacerbate those issues as both contribute to the alternator’s voltage.
Here are some maintenance tips to prevent overcharging and undercharging:
- Test the loaded and unloaded alternator output regularly.
- Inspect belts for wear, cracks and glazing.
- Install high-output alternators for more powerful systems.
- Use battery charge monitoring systems.
#5: Skipping Battery Testing and Maintenance
Scheduling consistent maintenance allows you to spot early signs of battery damage. Failing to do so could result in costly repairs and downtime.
Remember the following:
Load testing: Checking the electrical load allows you to assess the battery’s ability to manage voltage under pressure. You can identify capacity loss and signs of aging that could result in operational issues during startup.
Terminal maintenance: Check contacts, battery posts and terminal ends for oxidation and debris buildup. Cleaning those components helps the battery complete the charge/discharge cycle and reduces electrical resistance.
Battery inspection: Look for warped plastic, frayed cables, loose clamps and other components that could cause system failures.
Protect Your Fleet with Proper Battery Maintenance
Whether you’re operating a single vehicle, a mid-size outfit or a large fleet, Bauer Built can help you optimize its performance. We offer a variety of commercial services, including fleet maintenance, tire maintenance, retreading and wheel reconditioning. Find a location near you to schedule your appointment.
Categories: Bauer Built Blog
