Dec 24, 2024 · Costco provides a 36-month limited warranty on car batteries for the original purchaser. This prorated warranty applies to lead acid and AGM batteries. If a battery fails after 24 months, customers receive a 1/3 refund based on usage. Full replacements are not offered. Test the battery under warranty if you encounter problems.

How do you know when your car battery needs water? There are a few ways, but you must first know the answer to – how much water should be in a car battery? It should be about ½-inch above the plates inside. Here’s how to check if you need car battery top up water.

Battery corrosion occurs when the terminals of a car battery develop a buildup of white, ashy residue, often due to exposure to the hydrogen gas released from the battery acid.

Interstate Batteries ® products available at Costco ® come with a limited warranty serviced through your local Costco Wholesale warehouse. Check the warranty duration printed on your battery’s label. Download the limited warranty terms for more details. How will I know when it is time to replace my car battery?

Feb 12, 2023 · In this guide, I look closer at the symptoms of a failing car battery. I also review its location, function, and average replacement cost while showing you how to test it to determine the charge level. The most common symptoms of a bad car battery are dim or flashing headlights, trouble starting the car, or other electrical problems with your car.

A healthy car battery should have an SOH of at least 75%. Anything below 75% indicates that your battery is weaker and may not provide the necessary power to start your car or run electrical components.

Dec 26, 2024 · Excess water in a car battery can dilute the electrolyte solution, which is a mixture of sulfuric acid and water. This dilution can lead to reduced electrical conductivity. As a result, the battery may not charge properly or hold a charge as effectively.

Kirkland Signature Automotive (flooded battery) 0-to 48 months - Free replacement. 49-to 66 months - 50% refund based on purchase price. 67-to 100 months - 25% refund based on purchase price

Feb 1, 2025 · Water plays a crucial role in maintaining the health and functionality of car batteries, especially in lead-acid batteries. How often should I check my car battery water levels? Can I Use Tap Water Instead of Distilled Water to Top Up My Battery? What Happens If I Overfill My Car Battery with Water?

Dec 5, 2024 · You should add distilled water to car battery cells until the fluid level covers the plates inside the battery. Typically, battery cells should contain water at a level above the plates but not completely full, usually about 1/4 to 1/2 inch from the top of the cell.