Your Vehicle’s Battery
A-1 Auto Tech has seen many failed batteries in our 25 years in business, so we thought we would share a little information regarding your vehicles battery.
We have experienced the hottest summer in 75 years in 2011. When the mercury rises, a car battery’s strength goes down. Extreme heat outside combined with high temperatures under the hood, accelerates corrosion of car batteries. Heat causes battery fluid to evaporate, breaking down the battery grids. Weak batteries can struggle on for months, turning over the engine, while it’s easy to start and generate a charge; the real test comes when the temperature drops.
A weakened battery has to overcome cold temperatures and a harder-to-crank engine because the cold weath er has thickened the engine’s oil. The heat’s attack has lowered the starting power of your battery. This is when one morning you will go out to your vehicle and get a “click, click, click” or perhaps nothing at all.
With every oil change, A-1 Auto Tech does a 60 point safety inspection which includes a load test on your battery. What is a load test? Glad you asked.
You load test a battery at half of its rated CCA (Cold Cranking Amps: is a rating used in the battery industry to define a battery’s ability to start an engine in cold temperatures.) This, should not drop below 9.6 volts.
When a battery is new, generally the load volts are 10.3, we recommend at 9.5 or lower that your battery be changed. This will prevent you going to your vehicle and getting a “click, click, click”.
Give us a call to discuss maintenance service for your vehicle, we will be glad to help. (650) 964-7844.