Dragonfly wrote:
Bottom line ... to get your money's worth out of AGMs, research whether you might need a more powerful charger for the more powerful AGM batteries and, whether your alternator output is up to the task.
Bottom line: A really LOT of people worry about this when there really is no need. Even if it does only charge to 95%, you still are going to get most of the advantages of AGM.
The "truck" alternator typically puts out a bit over 14 volts when charging and that is plenty in most situations.
My advice: Don't worry about it unnecessarily unless and until you see that it is becoming a problem FOR YOUR NORMAL USAGE PATTERNS; likely it won't be.
