12V or 6V Batteries - Which charge Better?
I plan to switch to two 6V batteries in series, but before I do, I need to ask this question. When the batteries are drained and in need of charging, which will charge back up to full FASTER? Two ...
Forum Discussion
mda wrote:
I went with Trojan Group 27 AGM in my motor home for similar reasons. I have PD 4645 multistage converter. I have found that the battery charges fairly quickly using the genny. Not sure, I am no battery expert, but I believe AGM's are more efficient. I can tell you, though it was expensive, the battery is a brute when it comes service.
AGMs are more efficient. They have less internal resistance so less energy is used to create heat when charging and (more importantly) discharging. I prefer to use the energy of the batteries to run my RV lights etc rather than heat the underside. That internal resistance is also what factors into charging times.
