Recreational Vehicle (RV) Technician Practice Test

Which of the following is a common cause of battery failure in RVs?

1. Overcharging

2. Low water levels

3. Corrosion

4. All of the above

The correct answer is: All of the above

Battery failure in RVs can occur for several reasons, and all the options listed contribute to battery issues. Overcharging is a common cause because it can lead to excessive heat and damage the internal components of the battery, causing it to fail prematurely. Low water levels are critical as many RV batteries, especially lead-acid types, require a specific electrolyte level to function effectively. If the levels drop too low, it can lead to sulfation and ultimately battery failure. Corrosion can also create resistance at the battery terminals, leading to poor electrical connection and performance, which can drain the battery or prevent it from charging properly. Given that all these factors can independently or collectively lead to battery failure, the option indicating "All of the above" is the most accurate choice, as it encompasses the various ways battery health and performance can be compromised.