Matching The Correct Alternator For Your Application.
Upgrading your automobile-style alternator with a larger, high-capacity model that can charge larger batteries and keep them charged. Variables to consider when upgrading or replacing, are engine room space, engine type, belt type, size, battery bank size, and battery chemistry. Standard batteries usually accept current equal to 25% of its available capacity, Gel batteries accept 30 %, AGM batteries can accept 40-50 %, with newer technologies like lithium on or TTPLE can accept even more. The more advance the battery the bigger the alternator case needs to be.