BFL13 wrote:
outwestbound wrote:
BFL13 wrote:
The OP should "recondition" his AGMs ASAP to make up for undercharging them so far, and then get on track.
What do I do to recondition them?
From that earlier link--
"REFRESH CHARGE
If Fullriver batteries are properly charged they
should never require an equalizing charge. If
they were not properly charged and there is a
decrease in capacity, recharge the batteries and
make sure they complete the entire charge cycle.
It appears from that, that you don't do an overcharge, but do a deep cycle. Draw them down to say 60% SOC at say their 20 hr rate (doing a pair of 6s at a time) 415/20 = 20.75 amps
Then recharge fully per instructions in that link (figure 1)
However, usually a recondition means a slight overcharge for a length of time, but I don't know how much for how long is good with AGMs. Fullriver seems to have its own way as above.
IMO, call their tech support and try to pin them down on what exactly to do in your situation. (please pass along what they say) I suppose the Magnum charger can be adjusted to do anything Fullriver wants, but if it can't, that's another issue. There are adjustable voltage chargers that can if the Magnum's adjustments aren't suitable.
Thank so much for all your help. I'll call Fullriver. I have a lot of reading to do to get caught up. The bank was installed 5/1/16. I was so busy working, I didn't use the solar until 5/1/17. During that first year of ownership, I was in parks mostly on 50, but also on some 30 amp pedestals, or it was winterized. From 9/1/16 to 4/30/17, the camper was winterized but plugged into a 15amp exterior plug at a home. I set the magnum shore setting down to 15 during this period of winterization, and the magnum's max charge rate was at it's default setting of 80%. When I checked it periodically over the winter, it as "floating".
Since 5/1/17, I've been boondocking a good bit, but also in parks also. Probably 50/50 that I've been on pedestals in which the magnum would have brought them up to full charge.
While I'm sure I didn't charge them fully while boondocking, it was close, because I charged them until the idiot SOC percent meter said 100%, but also when the I/O got to zero. The single meter reading wasn't accurate due to load.
I'm hoping they aren't damaged. They don't seem to be, but I'm not competent to know the difference.
I need to re-assess exactly what I have and how the settings are, but most importantly, correct my incompetence in operating the system. If I'm convinced I'm doing the best I can, and getting a 3.6 onan for $3,500 is the only thing that makes good sense, I'll do that. I am not going to set up 2 Hondas, if that's what it takes to get these fullrivers to 100%, and only one Honda will not achieve the amps required, cuz it's a 13.3 output, based on what I'm understanding in this thread.
Getting educated about how to operate the system will come in the next 30 days. For now, I need to learn more so I may ask intelligent questions.
Thanks again.
