All of the above, Jerry. The problem is that everything in your car is designed to run on 6 volts. Running 8 volts through 6-volt components will put some stress on them and might shorten their lives ...
If your worst dry spring morning begins and ends with a drained battery, the Clarke BC1 Clarke BC1 6/12V Intelligent 1A ...
If you own a classic car, you know the ultimate mood killer is when the battery dies from being idle for too long. Well, here's how to fix that.